學系成員

劉維昇 教授/電機工程學系系主任/電機通訊學院副院長

  • 學歷

    中央大學 電機工程研究所博士

    經歷

    • 元智大學 電機工程學系 教授
    • 元智大學 光電工程學系 教授
    • 元智大學 光電工程學系 副教授 兼 課外活動組主任
    • 元智大學 光電工程學系 助理教授
    • 擔任國防部科技研究中心- 技術審議組委員
    • 擔任真空學會出版：「真空科技」期刊 – 副總編輯與執行編輯
    • 擔任經濟部能源局業界能專計畫– 計畫審查委員
    • 晶元光電 資深研發工程師
    • 中國電機工程學會： 正級會員
    • 台灣真空學會： 永久會員
    • 台灣電子材料與元件協會： 會員
    • 受邀擔任ACS Applied Materials & Interfaces/ Scientific Report/ RSC Advance/ Journal of the American Ceramic Society …等多本期刊之審稿委員

    研究專長

    研究專長

    半導體材料與電晶體元件製備與分析 / 光電半導體薄膜磊晶與元件製程 / 奈米量子結構製備與光電特性分析

  • 期刊論文

    Journal Paper:


    1. Wei-Sheng Liu*, Chien-Sheng Huang, Shih-Yuan Chen, Ming-Yuan Lee and Hsing-Chun Kuo*, “Investigation of Cu2ZnSnS4 thin film with preannealing process and ZnS buffer layer prepared by magnetron sputtering deposition”, Journal of Alloys and Compounds , 884, 161015, 2021. (Rank: 4/76, IF: 5.32, SCI,EI)
    2. Wei-Sheng Liu*, Chih-Hao Hsu, Yu-Jiang, Yi-Chun Lai, and Hsing-Chun Kuo*, “Improvement of device characteristics of plasma-treated indium gallium zinc oxide thin-film transistors through thermal annealing”, Semicond. Sci. Technol. 36, 045007, 2021 (Rank: 124/293, IF: 2.65, Material Science, Multidisciplinary- SCIE)
    3. Wei-Sheng Liu*, Shih-Yuan Chen, Chien-Sheng Huang, Ming-Yuan Lee and Hsing-Chun Kuo*, “Investigation of Zn/Sn ratio for improving the material quality of CZTS thin films with the reduction of Cu2-xS secondary phase”, Journal of Alloys and Compounds, 853, 157237, 2021. (Rank: 4/76, IF: 5.32, SCI,EI)
    4. Wei-Sheng Liu*, Yu-Lin Chang, Chun-Yuan Tan, Cheng-Ting Tsai and Hsing-Chun Kuo*, “Properties of n-type GaN thin film with Si-Ti codoping on a glass substrate”, Crystals, 10, 582 2020. (Rank: 10/26, IF: 2.59, Crystallography- SCIE)
    5. Wei-Sheng Liu*, Chien-Lung Huang, Yi-Hung Lin, Chih-Hao Hsu and Yi-Ming Chu, “Improving device characteristics of IGZO thin-film transistors by using pulsed DC magnetron sputtering deposition”, Semiconductor Science and Technology, 35, No.2, 025004, 2019 (Rank: 124/293, IF: 2.65, Material Science, Multidisciplinary- SCIE) (https://doi.org/10.1088/1361-6641/ab592a)
    6. Wei-Sheng Liu*, Ting-Kai Yang, Wei-Jen Hsueh, Jen-Inn Chyi, Tien-Yuan Huang, Ming-En Hsu, “Improved optical properties of InAs submonolayer quantum dots in GaAsSb/InGaAs double-well structure” Appl. Phys. Lett. 115, 093103, 2019. (Rank: 31/148, IF: 3.52, PHYSICS, APPLIED - SCIE, SCIE)
    7. Wei-Sheng Liu*, Yu-Lin Chang and Hui-Yu Chen, “Growth of GaN Thin Film on Amorphous Glass Substrate by Direct-Current Pulse Sputtering Deposition Technique”, Coatings, 9, 419, 2019 (Rank: 7/20, IF: 2.88, Materials Science, Coating and Films, SCIE).
    8. Wei-Sheng Liu*, Wei-Ting Hsieh, and Shih-Yuan Chen, and Chien-Sheng Huang, “Improvement of CIGS solar cells with high performance transparent conducting Ti-doped GaZnO thin films”, Solar Energy 174:83-96, 2018 (Rank:23/97, IF: 5.742, Energy & Fuels, SCI).
    9. Wei-Sheng Liu*, Yi-Hung Lin, Chien-Lung Huang, and Chih-Wei Wang, “Device Performance Improvement of Transparent Thin-Film Transistors with a Ti-doped GaZnO/ InGaZnO/ Ti-doped GaZnO Sandwich Composite-Channel Structure”, IEEE Transactions on Electron Devices, Volume 64, No. 6, 64 (2), pp 2533–2541, 2017 (Rank:37/249, IF: 2.6, Engineering, Electrical & Electronic, SCI)
    10. Wei-Sheng Liu*, Ren-Yo Liu, and Hsiao-Chien Lin, “Tailoring energy band alignment of vertically aligned InGaAs quantum dots capped with GaAs(Sb)/AlGaAsSb composite structure after thermal annealing treatment”, ACS Photonics, 4 (2), pp 242–250, 2017 (Rank:6/90, IF: 7.14, OPTICS, SCI)
    11. Wei-Sheng Liu*, Hsiao-Chien Lin, and Ren-Yo Liu, “Capping vertically aligned InGaAs/GaAs(Sb) quantum dots with a AlGaAsSb spacer layer in intermediate-band solar cell devices”, Progress in Photovoltaics: Research and Applications, Volume 25, Issue 1:76–86, 2017 (Rank: 4/89, IF: 9.696, Energy & Fuels, SCI/EI)
    12. Wei-Sheng Liu *, Ying-Fu Chen, Yu-Ming Wang, “Capping Ti-Doped GaZnO on InGaZnO layer as the composite-channel structure for enhancing the device performances and stability of thin-film transistors”, IEEE/OSA Journal of Display Technology, PP (99), 7559808, 2016 (Rank: 47/249, IF: 2.24, ENGINEERING, ELECTRICAL & ELECTRONIC, SCI/EI)
    13. Wei-Sheng Liu*, Yu-Ming Wang, “Enhancing transparent thin-film transistor device performances by using the Ti-doped GaZnO channel layer”, RSC Advances, 5, 104392 – 104399, 2015 (Rank: 33/157, IF: 3.84, Chemistry, SCI/EI)
    14. Wei-Sheng Liu, Huai-Ming Cheng, Hung-Chun Hu, Hau-Wei Yu, Nen-Wen Pu*, and Shih-Chang Liang, “Indium tin oxide with titanium doping for transparent conductive film application on CIGS solar cells” Applied Surface Science, 354(Part A), 31-35, 2015. (Rank: 1/18, IF: 3.39, MATERIALS SCIENCE, COATINGS & FILMS, SCI,EI)
    15. Nen-Wen Pu, Wei-Sheng Liu*, Huai-Ming Cheng, Hung-Chun Hu, Wei-Ting Hsieh, Hau-Wei Yu, and Shih-Chang Liang, “Investigation of the Optoelectronic Properties of Ti-doped Indium Tin Oxide Thin Film” Materials, 8(9), 6471-6481, 2015 (Rank: 63/271, IF: 2.728, MATERIALS SCIENCE,)
    16. Wei-Sheng Liu*, Hung-Chun Hu, Nen-Wen Pu, and Shih-Chang Liang, “Developing Flexible CIGS Solar Cells on Stainless Steel Substrates by using Ti/TiN Composite Structures as the Diffusion Barrier Layer”, Journal of Alloys and Compounds, 631, 146-152, 2015. (Rank: 4/76, IF: 4.18, SCI,EI)
    17. Wei-Sheng Liu*, Ting-Fu Chu, and Tien-Hao Huang, “Energy band structure tailoring of vertically aligned InAs/GaAsSb quantum dot structure for intermediate-band solar cell application by thermal annealing process” , Optics Express, 22(25), pp. 30963–30974, 2014 (Rank: 5/80, IF: 3.75, OPTICS - SCIE)
    18. Jung-Y. Huang, Chien-Y. Lin, Wei-Sheng Liu, and Jen-Inn Chyi, “Quantum control study of ultrafast optical responses in semiconductor quantum dot devices” Optics Express, 22(25), pp.30815-30825, 2014 (Rank: 5/80, IF: 3.75, OPTICS - SCIE)
    19. Wei-Sheng Liu*, Shen-Yu Wu, Chao-Yu Hung, Ching-Hsuan Tseng, and Yu-Lin Chang, “Improving the Optoelectronic Properties of Gallium ZnO Transparent Conductive Thin Films through Titanium Doping”, Journal of Alloys and Compounds, 616, 268-274, 2014. (Rank: 4/76, IF: 4.18, SCI,EI)
    20. Wei-Sheng Liu*, and Ching-Min Chang, “Capping InAs Quantum Dots with an InGaAsSb Strain-Reducing Layer to Improve Optical Properties and Dot-Size Uniformity”, Thin Solid Film, 570, 490-495, 2014 (Rank: 5/17, IF: 1.935, SCI, EI)
    21. Wei-Sheng Liu*, Shen-Yu Wu, Ching-Hsuan Tseng, and Chao-Yu Hung, “Quality Improvement of High-performance Transparent Conductive Ti-Doped GaZnO Thin Film”, Thin Solid Film, 570, 568-573, 2014 (Rank: 5/17, IF: 1.935, SCI, EI)
    22. Chih-Hao Chang*, Wei-Sheng Liu*, Shen-Yu Wu, Jun-Lin Huang, Chao-Yu Hung, Yu-Lin Chang, Ying-Chieh Wu, Wei-Chih Chen and Yi-Cheng Wu, “Ga-doped TiZnO Transparent Conductive Oxide used as an alternate anode in blue, green, and red phosphorescent OLEDs”, Physical Chemistry Chemical Physics, 16, 19618-19624, 2014 (Rank: 5/33, IF: 4.49, SCI,EI)
    23. Wei-Sheng Liu*, Hsin-Lun Tseng, and Po-Chen Kuo, “Enhancing optical characteristics of InAs/InGaAsSb quantum dot structures with long-excited state emission at 1.31 μm”, Optics Express, 22(16), pp. 18860-18869, 2014 (Rank: 5/80, IF: 3.75, OPTICS - SCIE)
    24. Wei-Sheng Liu*, W.-K. Chen, S.-Y. Wu, and K.-P. Hsueh, “Improved Crystal Quality of Transparent Conductive Ga-doped ZnO Films by Magnesium Doping Through Radio-Frequency Magnetron Sputtering Preparation” Journal of the American Ceramic Society, 97, 473-480, 2014. (Rank: 1/25, IF: 2.841, SCI,EI)
    25. Wei-Sheng Liu*, S.-Y. Wu, C.-H. Tseng, and C.-Y. Hung, “Development of high-quality titanium-doped gallium ZnO transparent conductive films by RF magnetron sputtering techniques” Physica Status Solidi C, 10, 1569, 2013 (EI)
    26. Wei-Sheng Liu*, Y.-T. Wang, C.-M. Chang, W.-Y. Qiu, and C. Fang, “Study of carry dynamics of vertically aligned InAs/GaAsSb quantum dot structures” Physica Status Solidi C, 10, 1489, 2013 (EI)
    27. Wei-Sheng Liu*, Yen-Ting Wang, Wen-Yu Qiu, and Chi Fang, “Carrier Dynamics of a Type-II Vertically Aligned InAs Quantum Dot Structure with a GaAsSb Strain-Reducing Layer” Appl. Phys. Express, 6, 085001, 2013. (Rank: 22/127, IF: 2.57, SCI,EI)
    28. Wei-Sheng Liu*, “Enhancing device characteristics of 1.3 μm emitting InAs/GaAs quantum dot lasers through dot-height uniformity study”, Journal of Alloys and Compounds 571, 153-158, 2013. (Rank: 4/76, IF: 4.18,SCI,EI)
    29. Wei-Sheng Liu*, Y.-H. Liu, W.-K. Chen and K.-P. Hsueh, “Transparent Conductive Ga-doped MgZnO/Ag/ Ga-doped MgZnO Sandwich Structure with improved conductivity and transmittance”, Journal of Alloys and Compounds, 564, 105-113, 2013 (Rank:4/76, IF: 4.18 ,SCI, EI)
    30. Wei-Sheng Liu*, Wei-Ku Chen, Kuang-Po Hsueh, “Transparent conductive Ga-doped MgxZn1−xO films with high optical transmittance prepared by radio frequency magnetron sputtering”, Journal of Alloys and Compounds, 552, 255-263, 2013(Rank:4/76, IF: 4.18, SCI, EI)
    31. Wei-Sheng Liu*,Hong-Ming Wu, Fu-Hsiang Tsao, Tsan-Lin Hsu, Jen-Inn Chyi, "Improving the characteristics of intermediate-band solar cell devices using a vertically aligned InAs/GaAsSb quantum dot structure", Solar Energy Materials and Solar Cells, 105, 237–241, 2012(Rank:28/251, IF: 5.337,SCI, EI)
    32. Wei-Sheng Liu*, Hsin-Lun Tseng, Tien-Hao Huang, Ting-Fu Chu, Po-Chen Kuo, Fu-Hsiang Tsao, and Jen-Inn Chyi “Characteristic improvements of vertically aligned columnar quantum dot solar cell with a GaAsSb capping layer”, Proceedings of SPIE (Proc. SPIE), Vol. 8471, pp. 21, 2012. (EI)
    33. Wei-Sheng Liu*, H.-M. Wu, Y.-A. Liao, J.-I. Chyi, W.-Y. Chen, and T.-M. Hsu, “High Optical Property Vertically Aligned InAs Quantum Dot Structures with GaAsSb Overgrown Layers”, J. Cryst. Growth, 323, 164, 2011. (Rank:81/232, IF: 1.726, SCI, EI)
    34. Hsueh, K.-P., Cheng, Y.-C., Lin, W.-Y., Chiu, H.-C., Huang, Y.-P., Chi, G.-C., Liu, W.-S., “Physical properties of Al-doped MgZnO film grown by RF magnetron sputtering using ZnO/MgO/Al 2O 3 target”, Proceedings of SPIE - The International Society for Optical Engineering, 8110, September 13, 2011. (EI)
    35. D.-C. Wu, Y.-C. Un, M.-H. Mao, W.-S. Liu, P.-C. Chiu, J.-I. Chyi, J.-S. Wang, G. Lin, J.-Y. Chi, “Temperature dependences of quantum-dot laser thresholds under simultaneously three-state or two-state lasing operations”, Conference on Quantum Electronics and Laser Science Conference on Lasers and Electro-Optics, CLEO/QELS, 2008 (EI)
    36. J.-I. Chyi*, W.-S. Liu, P.-C Chiu, M.-J Shiau, David M.-T Kuo, W.-Y. Chen, H.-S. Chang, and T. M. Hsu, “High Quality InAs Quantum Dots with an In(Ga, Al)AsSb Strain-Reducing Layer for Long Wavelength Photonic Devices”, ECS Trans.6 (2), 35-40, May, 2007. (NSC 94-2215-E-008-004, 94-2752-E-008-001-PAE, and 93-2120-M-008-001)(EI)
    37. Chiu, P.-C., Liu, W.-S., Shiau, M.-J., Chyi, J.-I., Chen, W.-Y., Chang, H.-S., Hsu, T.-M., “High optical quality of InAs quantum dots with an InAlAsSb strain-reducing layer”, Conference Proceedings - International Conference on Indium Phosphide and Related Materials, 2007. (EI)
    38. Y.-T. Li, J.-W. Shi*, C.-L. Pan, C.-H. Chiu, W.- S. Liu, N.-W. Chen, C.-K. Sun, and J.-I. Chyi, “Sub-THz Photonic - Transmitters Based on Separated -Transport- Recombination Photodiodes and a Micromachined Slot Antenna”, IEEE Photon. Tech, Lett. 19, 840-842, June, 2007. (Rank:42/245,SCI, EI)
    39. J.-S. Hwang*, H.-C. Lin, C.-K. Chang, T.-S. Wang, L.-S. Chang, J.-I. Chyi, W.-S. Liu, S.-H. Chen, H.-H. Lin and P.-W. Liu, “The dependence of terahertz radiation on the built-in electric field in semiconductor microstructures”, Opt. Express 15, 5120-5125, April, 2007. (Rank:6/79, SCI, EI)
    40. P.-C Chiu, W.-S. Liu, M.-J Shiau, J.-I. Chyi*, W.-Y. Chen, H.-S. Chang, and T. M. Hsu, “Enhancing the optical properties of InAs quantum dots by an InAlAsSb overgrown layer”, Appl. Phys. Lett. 91, 153106, Oct., 2007. (Rank:17/125,SCI, EI)
    41. W.-S. Liu, David M.-T Kuo, J.-I. Chyi*, W.-Y. Chen, H.-S. Chang, and T. M. Hsu, “Enhanced thermal stability and emission intensity of InAs quantum dots covered by InGaAsSb strain-reducing layer”, Appl. Phys. Lett., 89, 243103, Dec., 2006. (Rank:17/125,SCI, EI)
    42. W.-S. Liu, H. Chang, Y.-S. Liu, and J.-I. Chyi*, “Pinhole-Like Defects in Multi-Stack 1.3 mm InAs Quantum Dot Laser”, J. Appl. Phys., 99, 114514, June, 2006. (NSC 94-2215-E-008-004) (Rank:37/125,SCI, EI)
    43. T.-F. Kao, H.-H. Chang, L.-J. Chen, J.-Y. Lu, A.-S. Liu, Y.-C. Yu, R.-B. Wu, W.-S. Liu, J.-I. Chyi, and C.-K. Sun*, “Frequency tunability of terahertz photonic transmitters”, Appl. Phys. Lett. 88, 093501, Feb., 2006. (Rank:17/125,SCI, EI)
    44. J.-W. Shi*, Y.-T. Li, M.-L. Lin, Y.-S. Wu, W.-S. Liu, J.-I. Chyi , and C.-L. Pan, “Bandwidth Enhancement Phenomenon of a High-Speed GaAs-AlGaAs Based Unitraveling Carrier Photodiode with an Optimally Designed Absorption-Layer at an 830 nm Wavelength”, Appl. Phys. Lett. 89, 053512, Aug., 2006. (Rank:17/125,SCI, EI)
    45. J.-Y. Lu, L.-J. Chen, T.-F. Kao, H.-H. Chang, C.-K. Sun, A-S. Liu, Y.-C. Yu, R.-B. Wu, W.-S. Liu, J.-I. Chyi, “Terahertz biochip for illicit drug detection”, Conference on Lasers and Electro-Optics and 2006 Quantum Electronics and Laser Science Conference, CLEO/QELS 2006 (EI)
    46. J.-W. Shi, Y.-T. Li, C.-L. Pan, M.-L. Lin, Y.-S. Wu, W.-S. Liu, J.-I. Chyi, “Separated-transport-recombination p-i-n photodiode (STR-PD) with high-speed and high-power performance under Continuous-Wave (CW)”, Conference on Lasers and Electro-Optics and 2006 Quantum Electronics and Laser Science Conference, CLEO/QELS 2006 (EI)
    47. T.-F. Kao, L.-J. Chen, H.-H. Chang, J.-Y. Lu, A.-S. Liu, Y.-C. Yu, R.-B. Wu, W.-S. Liu, J.-I. Chyi, C.-K. Sun, “Broadband-response and frequency-tunable terahertz photonic transmitters with high efficiency”, Optics InfoBase Conference Papers (EI) 2006
    48. J.-Y. Lu, L.-J. Chen, T.-F. Kao, H.-H. Chang, H.-W. Chen, A.-S. Liu, Y.-C. Chen, R.-B. Wu, W.-S. Liu, J.-I. Chyi , and C.-K. Sun*, “Terahertz Microchip for Illicit Drug Detection”, IEEE Photonics Technology Letters, 18, 2254-2256, 2006 (NSC 94-2215-E-002-007) (Rank:42/245,SCI, EI)
    49. J.-W. Shi*, H.-C. Hsu, F.-H. Huang, W. -S. Liu, J.-I. Chyi, J.-Y. Lu, C.-K. Sun, and C.-L. Pan, “Separated-Transport-Recombination p-i-n Photodiode for High-Speed and High-Power Performance”, IEEE Photonics Technology Letters, Vol.17, 1722-1724, Aug., 2005. (NSC 92-2218-E-008-011, and 93-2215-E-008-022) (Rank:42/245,SCI, EI)
    50. Lu, J.-Y., Chen, L.-J., Kao, T.-F., Chang, H.-H., Liu, A.-S., Yu, Y.-C., Wu, R.-B., Liu, W.-S., Chyi, J.-I., Pan, C.-L., Tsai, M.-C., Sun, C.-K., “Terahertz biochip based on optoelectronic devices”, Proceedings of SPIE - The International Society for Optical Engineering, 2005 (EI)
    51. W.-S. Liu, Holin Chang, and J.-I. Chyi, “Effects of dot-height uniformity on the performance of 1.3 um InAs quantum dot lasers”, 5th IEEE Conference on Nanotechnology, 2005. (EI)
    52. W.-S. Liu, and J.-I. Chyi*, “Optical Properties of InAs Quantum Dots with InAlAs/InGaAs Composite Matrix”, J. Appl. Phys. Vol.97, 024312-024314, Jan. 2005. (NSC 91-2120-E-008-001) (Rank:37/125,SCI, EI)
    53. J.-I. Chyi , W.-S. Liu, T.-P. Hsieh, T. M. Hsu, W. H. Chang, W. Y. Chen and H. S. Chang, “Progress on InAs-Based Quantum Dot Light Emitters”, 208 th Meeting of the Electrochemical Society (ECS), Los Angeles, U.S.A., 2005. (EI)
    54. T.-F. Kao, L.-J. Chen, H.-H. Chang, J.-Y. Lu, A.-S. Liu, Y.-C. Yu, R.-B. Wu, W.-S. Liu, J.-I. Chyi, C.-K. Sun, “Broadband-response and frequency-tunable terahertz photonic transmitters with high efficiency”, IEEE Conference on Lasers and Electro-Optics, Baltimore, U.S.A., 2005 (EI)
    55. W.-S. Liu, and J.-I. Chyi, “Optical properties of InAs quantum dots with InAlAs/InGaAs composite matrix”, 16th Intl. Conf. InP Related Materials, Kagoshima, Japan, 2004 (EI)
    56. L. Jiang, S.-S. Li*, W.-S. Liu, N.-T. Yeh and J.-I. Chyi, “A Two-Stack, Multi-Color In0.5Ga0.5As/GaAs and InAs/GaAs Quantum Dot Infrared Photodetector for Long Wavelength Infrared Detection”, Infrared Physics and Technology, Vol.46, 249-256, Jan., 2005. (NSC 91-2120-E-008-001) (SCI, EI)
    57. H.-C. Chiu, S.-C. Yang, Y.-J. Chan*, S.-H. Chen, W.-S. Liu and J.-I. Chyi,” The microwave power performance comparisons of AlxGa1-xAs/In0.15Ga0.85As (x=0.3, 0.5, 0.7, 1.0) doped-channel HFETs”, Electron Devices, Vol. 51, 156 – 158, Jan. 2004. (NSC 90-2219-E-008-003) (SCI, EI)
    58. M.-C. Tien, H.-H. Chang, J.-Y. Lu, L.-J. Chen, S.-Y. Chen, R.-B. Wu, W.-S. Liu, J.-I Chyi and C.-K. Sun*, “Device saturation behavior of submillimeter-wave membrane photonic transmitters”, IEEE Photonics Technology Letters, Vol. 16, 873 – 875, March, 2004. (Rank:42/245,SCI, EI)
    59. C.-K. Sun, M.-C. Tien, H.-H. Chang, J.-Y. Lu, L.-J. Chen, S.-Y. Chen, R.-B. Wu, W.-S. Liu, J.-I. Chyi, “Conversion efficiency and device behavior of edge-coupled membrane photonic transmitters”, Lasers and Electro-Optics Society, LEOS, 2003 (EI)
    60. N.-T. Yeh, W.-S. Liu, S.-H. Chen, P.-C. Chiu, and J.-I. Chyi*, “InAs/GaAs quantum dot lasers with InGap cladding layer grown by solid-source molecular-beam epitaxy”, Appl. Phys. Lett. 80, 4, 535-537, Jan., 2002. (Rank:17/125,SCI, EI)
    61. N.-T. Yeh, W.-S. Liu, S.-H. Chen, J.-I. Chyi, “Effects of spacer thickness on the performance of InGaAs/GaAs quantum dot lasers”, Materials Research Society Symposium – Proceedings, 2001 (EI)
    62. N.-T. Yeh, W.-S. Liu, S.-H. Chen, P.-J. Chiu, J.-I. Chyi, “InAs/GaAs quantum dot lasers with InGaP cladding layer grown by solid-source molecular beam epitaxy”, Conference Proceedings - International Conference on Indium Phosphide and Related Materials, 2001 (EI）


  • 會議論文

    1. Kai-Yang Hsu, Wei-Sheng Liu*, Po-Hao Chang, Tsun-Jie Ko, Ming-En Syu, and Jen-Inn Chyi, “Enhancement of Optical Properties of InAs/InSb/AlSb Type II superlattices by thermal annealing process”, Optics & Photonics Taiwan, International Conference(OPTIC 2020）, Taiwan, 2020
    2. Yong-Zhen Li, Wei-Sheng Liu*, Ming-Hsuan Tsai, Po-Hao Chang, Hsu-Kai Yang, Ming-En Hsu, “Study of the optical properties of InAs sub-monolayer quantum dots in an InGaAs(Sb)/GaAsSb double quantum well structure”, Optics & Photonics Taiwan, International Conference(OPTIC 2020）, Taiwan, 2020
    3. Po-Hao Chang, Wei-Sheng Liu*, Tsun-Jie Ko, Ming-En Syu , and Jen-Inn Chyi, “Development of an InAs/InSb/AlSb Type II Superlattice Short-Wavelength Infrared Photodetector”, Optics & Photonics Taiwan, International Conference(OPTIC 2020）, Taiwan, 2020
    4. Ming-Hsuan Tsai, Wei-Sheng Liu*, Ming-En Hsu, and Yong-Zhen Li, “Optical properties of InAs sub-monolayer quantum dots with pentanary InAlGaAsSb capping layer”, Optics & Photonics Taiwan, International Conference(OPTIC 2020）, Taiwan, 2020
    5. Yung-Jyun Liao, Wei-Sheng Liu*, Guan-Ru Chen, and Li-Cheng Huang, “Effects of antimony incorporation in the InAlAsSb capping layer for the optical properties of the InAs submonolayer quantum dots”, Optics & Photonics Taiwan, International Conference(OPTIC 2020）, Taiwan, 2020
    6. Ming-En Hsu, Wei-Sheng Liu*, Ting-Kai Yan, “Investigation of the optical properties of the InAs submonolayer quantum dots with GaAs/GaAsSb hole trapping structure”, Optics & Photonics Taiwan, International Conference(OPTIC 2020）, Taiwan, 2020
    7. Sui-Hua Wu, Wei-Sheng Liu*, Yu-Lun Jiang, Chung-Kai Chi, “Use of DC reactive magnetron sputtering to grow high-quality AlN on Si<111> substrate”, Optics & Photonics Taiwan, International Conference(OPTIC 2020）, Taiwan, 2020
    8. Wei-Sheng Liu*, Yi-Ming Chu, Chih-Hao Hsu, Yu Jiang, Meng-Jung Chiang, Yi-Chun Lai, and Yen-Lin Chen, “The development of P-type transparent conductive tin monoxide thin-film transistors”, International Conference on Flexible and Printed Electronics 2019（ICFPE2019）, Taiwan, 2019
    9. Chien-Sheng Huang, Wei-Sheng Liu*, Shih-Yuan Chen,and Ming-Yuan Lee, “Two steps method to prepared ZnS thin film by sulfurization of sputtering-deposited Zn thin film”, Optics & Photonics Taiwan, International Conference(OPTIC2019）, Taiwan, 2019
    10. Ming-Yuan Lee, Wei-Sheng Liu*, Shih-Yuan Chen,and Chien-Sheng Huang, “Studying on the characteristics of CZTS thin-film by sputtering deposition”, Optics & Photonics Taiwan, International Conference(OPTIC2019）, Taiwan, 2019
    11. Wei-Sheng Liu*, Yu-Lin Chang, Cheng-Ting Tsai, and Chun-Yuan Tan, “Characteristics of Mg-Cu co-doped p-type GaN Film Deposited on Glass Substrate”, Optics & Photonics Taiwan, International Conference(OPTIC2019）, Taiwan, 2019
    12. Wei-Sheng Liu*, Yi-Ming Chu, Chih-Hao Hsu, Yu Jiang, Meng-Jung Chiang, Yi-Chun Lai, and Yen-Lin Chen, “Fabrication of a double-gate p-type SnO TFT to improve transistor characteristics”, Optics & Photonics Taiwan, International Conference(OPTIC2019）, Taiwan, 2019
    13. Wei-Sheng Liu*,Ting-Kai Yang,Yi-Miao Hua,Kai-Chun Ma,and Jen-Inn Chyi, “Investigation of InAs submonolayer quantum-dot solar cell with InGaAs/GaAsSb dot-in-a-double-well structure”, Optics & Photonics Taiwan, International Conference(OPTIC2019）, Taiwan, 2019
    14. Wei-Sheng Liu*, Chun-Yuan Tan, Yu-Lin Chang, and Cheng-Ting Tsai, “Fabrication of N-type GaN thin film through Si and Ti co-doping on a glass substrate by using magnetron sputtering system”, International Conference on Advanced Technology Innovation 2019 (ICATI2019), Oral presentation, Sapporo, Hokkaido, Japan, 2019
    15. Wei-Sheng Liu*, Chun-Yuan Tan, Yu-Lin Chang, and Cheng-Ting Tsai, “Development of n-type GaN film by Si and Ti co-sputtering technique on a glass substrate”, Compound Semiconductor Week 2019 (CSW2019), Nara, Japan, 2019
    16. Wei-Sheng Liu*, Ting-Kai Yang, Jen-Inn Chyi, Po-hao Chang and Ming-En Hsu, “Enhanced optical properties of InAs submonolayer quantum dots in InGaAs/GaAsSb double-well cladding structure, 201905”, Epi-Taiwan Conference 2019, Taoyuan, Taiwan 2019
    17. Wei-Sheng Liu*, Yu-Lin Chang, “Si-Sn co-doping n- type GaN film on the glass substrate by Sputtering Deposition system”, Optics & Photonics Taiwan, International Conference(OPTIC) 2018
    18. Wei-Sheng Liu*, Cheng-Ting Tsai, Yu-Lin Chang, and Chun-Yuan Tan, “Deposition of p-type GaN thin films with Mg and Zn co-sputtering technique on glass substrates”, Optics & Photonics Taiwan, International Conference(OPTIC) 2018
    19. Wei-Sheng Liu*, Ting-Kai Yang, and Jen-Inn Chyi, “The optical properties of InAs submonolayer quantum dots with GaAsSb capping layer”, Optics & Photonics Taiwan, International Conference (OPTIC) 2018
    20. Wei-Sheng Liu*, Chun-Yuan Tan, Yu-Lin Chang, and Cheng-Ting Tsai, “Sputtering Deposition of an N-type GaN thin film with Si and Ti co-doping on a glass substrate”, Optics & Photonics Taiwan, International Conference (OPTIC) 2018
    21. Wei-Sheng Liu*, Hui-Yu Chen, and Yu-Lin Chang, “Mg/Cu co-doped p-type GaN thin film on glass substrate by using co-sputtering deposition technique”, Optics & Photonics Taiwan, International Conference (OPTIC) 2018
    22. Wei-Sheng Liu*, Shih-Yuan Chen,Chien-Sheng Huang, and Hsin-Hui Wang, “Effect of Zn composition in Cu2ZnSnS4 thin films with optimum sulfide annealing time”, Taiwan Vacuum Society (TVS), Taiwan, 2018
    23. Wei-Sheng Liu*, Shao-Yang Lin, and Ting-Kai Yang, “Optical characteristics of InGaAs quantum dots grown on GaAsSb strain buffer layer”, Taiwan Vacuum Society (TVS), Taiwan, 2018
    24. Wei-Sheng Liu*, Yi-Ming Chu, Chih-Hao Hsu, and Yu Jiang, “Sputtering P-type Tin monoxide film at different annealing temperatures and Ar/O2 gas ratios”, Taiwan Vacuum Society (TVS), Taiwan, 2018
    25. Wei-Sheng Liu*, Yi-Hung Lin, Chien-Lung Huang, Chih-Wei Wang, Yi-Ming Chu, and Chih-Hao Hsu “Device Performance Improvement of Thin Film Transistor with Ti-Doped GaZnO / InGaZnO / Ti-Doped GaZnO Sandwich Composite Channel”, 45th International Symposium on Compound Semiconductors- ISCS, Boston, USA, 2018
    26. Wei-Sheng Liu*, Shao-Yang Lin, Ren-Yo Liu, and Hsiao-Chien Lin “Vertical Arrangement of InGaAs / GaAs (Sb) Quantum Dots with AlGaAsSb Insertion Layer in Solar Cell Device”, 45th International Symposium on Compound Semiconductors- ISCS, Boston, USA, 2018
    27. Wei-Sheng Liu*; Yu-Lin Chang; Hui-Yu Chen” Growth of Gallium Nitride Thin Film on Amorphous Glass Substrate Through Pulsed Direct Current Sputtering Deposition”, 45th International Symposium on Compound Semiconductors- ISCS, Boston, USA, 2018
    28. Wei-Sheng Liu*, Wei-Ting Hsieh, Shih-Yuan Chen, Chien-Sheng Huang and Ting-Kai Yang, “Application of high-performance Ti-doped GaZnO transparent conducting thin films on CIGS solar cells”, Optics & Photonics Taiwan, the International Conference (OPTIC), Taiwan, 2017- Student Paper Award （學生論文獎）
    29. Wei-Sheng Liu*, Chih-Wei Wang, Yi-Ming Chu, and Chih-Hao Hsu, “The development of P-type transparent conductive tin monoxide thin films”, Optics & Photonics Taiwan, the International Conference (OPTIC), Taiwan, 2017
    30. Wei-Sheng Liu*, Wei-Ting Hsieh and Shih-Yuan Chen, “Development of high performance transoarent conductive Ti-doped GaZnO thin films for the application in CIGS solar cells”, Taiwan Vacuum Society (TVS), Taiwan, 2017
    31. Wei-Sheng Liu*, Chih-Wei Wang and Yi-Ming Chu, “Investigation of P-type transparent conductive SnO thin films”, Taiwan Vacuum Society (TVS), Taiwan, 2017
    32. Wei-Sheng Liu*, Di-Ting Lin, Ren-Yo Liu, and Hsiao-Chien Lin, “Amending Energy Band Alignment of Perpendicularly Aligned InGaAs Quantum Dots Covered with GaAs(Sb)/AlGaAsSb Combined Structure after Rapid Thermal Annealing”, Taiwan Vacuum Society (TVS), Taiwan, 2017- Best Paper Award
    33. Wei-Sheng Liu*, Yu-Lin Chang, “Growth of GaN Thin Film on Amorphous Glass Substrate by DC-Pulse Sputtering Deposition Technique”, International Electron Devices & Materials Symposium (IEDMS) ,Taiwan, 2017
    34. Wei-Sheng Liu*, Wei-Ting Hsieh, Shih-Yuan Chen, Yu Jiang, Shao-Ta Chen, Chia-Chen Wen, Hui-Yu Chen, En-Tso Huang, and Ming-En Hsu, “Using the Ti-doped GaZnO transparent conductive oxide films for the development of CIGS photovoltaics”, 24th International Workshop on Active-Matrix Flat panel Displays and Devices, Kyoto, Japan, 2017
    35. Wei-Sheng Liu*, Chih-Wei Wang, Yi-Hung Lin, Chien-Lung Huang, Yi-Ming Chu, Chia-Chen Wen, En-Tso Huang, Hui-Yu Chen, Shao-Ta Chen, Ming-En Hsu and Yu-Jiang, “Using Ti-doped GaZnO/ InGaZnO/ Ti-doped GaZnO sandwich composite Structure to enhance the device performances of transparent thin-film transistors”, 24th International Workshop on Active-Matrix Flat panel Displays and Devices, Kyoto, Japan, 2017
    36. Wei-Sheng Liu*, Ren-Yo Liu, Hsiang-Yu Hsiao, Di-Ting Lin, “Study of vertically aligned InGaAs quantum dots capped with GaAs(Sb)/AlGaAsSb composite structure”, International Electron Devices and Materials Symposia Conference (IEDMS),Taiwan, 2016
    37. Wei-Sheng Liu*, Ren-Yo Liu, Hsiang-Yu Hsiao, “Sb aggregation for tailoring energy band alignment of vertically aligned InGaAs/GaAs(Sb)/AlGaAsSb composite quantum dot structure after thermal annealing treatment”, International Electron Devices and Materials Symposia Conference (IEDMS),Taiwan, 2016
    38. Wei-Sheng Liu*, Chih-Wei Wang, Yi-Hung Lin, and Chien-Lung Huang, “Enhancing the Device Performance of Transparent Thin-Film Transistors with a Ti-doped GaZnO/ InGaZnO/ Ti-doped GaZnO Sandwich Composite-Channel Structure”, International Electron Devices and Materials Symposia Conference (IEDMS),Taiwan, 2016
    39. Wei-Sheng Liu*, Hsiao-Chien Lin, Ren-Yo Liu, Min Wu, and Hsiang-Yu Hsiao “Study of optical properties of vertically-aligned InGaAs quantum dots capped by GaAsSb/AlGaAsSb composite structure”, Symposium on Nano Device Technology (SNDT),Taiwan, 2016
    40. Wei-Sheng Liu*, Wei-Ting Hsieh, Yi-Hung Lin, Yu-Ming Wang, Chih-Wei Wang and Yan-Xiao Lin, “Enhancement of optoelectronic device performances by using TiO2-doping in GaZnO thin films”, Energy Material and Nanotechnology (EMN) Meeting on Titanium-Oxides, USA, 2016 –Invited Talk and Session Chair.
    41. Wei-Sheng Liu*, Ying-Fu Chen, Yu-Ming Wang, Yi-Hung Lin, “Improving the Device Performances of InGaZnO Thin-Film Transistor by Using Ti-Doped GaZnO Capping Layer”, International Thin-Film Transistor Conference (ITC) ,Taiwan, 2016
    42. Wei-Sheng Liu* and Wei-Ting Hsieh, “Improving the device characteristics of CIGS solar cells with high performance transparent conducting Ti-doped GaZnO thin films”, Optics & Photonics Taiwan, the International Conference (OPTIC) , 2015
    43. Wei-Sheng Liu*, Ren-Yo Liu, Hsiao-Chen Lin, “Energy band-alignment tailoring by using thermal annealing treatment on the vertically-aligned InGaAs/GaAs(Sb)/AlGaAsSb quantum dots”, International Electron Devices and Materials Symposia Conference(IEDMS) ,Taiwan, 2015
    44. Wei-Sheng Liu*, Yi-Hung Lin, and Chien-Lung Huang, “Improving the Device Characteristics of Transparent Thin-Film Transistors by Using a GaTiZnO/ InGaZnO/GaTiZnO Triple-Channel Structure”, International Electron Devices and Materials Symposia Conference(IEDMS) ,Taiwan, 2015
    45. Wei-Sheng Liu*, R.-Y. Liu, H.-C. Lin, M. Wu, "Enhancing the dot-size uniformity of vertically-aligned InGaAs quantum dots by using the GaAsSb/AlGaAsSb composite overgrown layer" Symposium on Nano Device Technology, SNDT 2015,Taiwan, R.O.C., 2015.
    46. Wei-Sheng Liu*, Hsiao-Chien Lin, Ren-Yo Liu and Min Wu, “Improvements of dot-size uniformity of the columnar InGaAs quantum dot structures with GaAs(Sb)/AlGaAsSb composite layers” 22th International Workshop on Active-Matrix Flat panel Displays and Devices, Kyoto, Japan, 2015.
    47. Wei-Sheng Liu*, Chien-Lung Huang, “Development of IGZO TFT by pulse-DC magnetron sputtering deposition for enhancing the device performance”, Optics & Photonics Taiwan, the International Conference (OPTIC) , 2014
    48. Wei-Sheng Liu*, Yu-Lin Chang , “Improvement of CIGS solar cell conversion efficiency by using high performance Ti-doped GaZnO transparent conductive films”, Optics & Photonics Taiwan, the International Conference (OPTIC) , 2014
    49. Wei-Sheng Liu*, Hsiao-Chien Lin, and Ching-Min Chang, “Capping vertically-aligned InGaAs quantum dots with AlGaAsSb overgrown layer for improving the performances of solar cell”, International Electron Devices and Materials Symposia Conference(IEDMS), 2014 --- Best Paper Award!!
    50. Wei-Sheng Liu*, Chien-Lung Huang , “Optoelectronic properties studies of IGZO thin films deposited by pulse-DC magnetron sputtering”, International Electron Devices and Materials Symposia Conference(IEDMS), 2014
    51. Wei-Sheng Liu, Huai-Ming Cheng, Hung-Chun Hu, Hau-Wei Yu, Nen-Wen Pu, and Shih-Chang Liang, “Using indium tin oxide with titanium doping for transparent conductive film application on CIGS solar cells”, The 7th Vacuum and Surface Sciences Conference of Asia and Australia (VASSCAA-7), 2014
    52. Wei-Sheng Liu, Huai-Ming Cheng, Hung-Chun Hu, Hau-Wei Yu, Nen-Wen Pu, and Shih-Chang Liang, “Investigation of the Optoelectronic Properties of Ti-doped Indium Tin Oxide Thin Film”, The 7th Vacuum and Surface Sciences Conference of Asia and Australia (VASSCAA-7), 2014.
    53. Wei-Sheng Liu *, Hung-Chun Hu, Nen-Wen Pu, and Shih-Chang Liang, “Using a Ti/TiN Composite Structure as the Diffusion Barrier Layer for CIGS Solar Cell Application on Stainless Steel Substrates”, 21st International Workshop on Active-Matrix Flatpanel Displays and Devices, Kyoto, Japan, 2014
    54. Wei-Sheng Liu *, Ying-Fu Chen, Yu-Ming Wang, “Improvement of Device Characteristics of Transparent Thin-Film Transistors by using GaTiZnO / InGaZnO4 Composite- Channel Structure”, 21st International Workshop on Active-Matrix Flatpanel Displays and Devices, Kyoto, Japan, 2014
    55. W.-S. Liu*, C.-M. Chang, W.-Y. Qiu, and C. Fang, “Carrier Dynamic and Optical Properties Study of InAs Quantum Dots Capped with InGaAsSb Strain-Reducing Layer” , TACT- International Thin Films Conference, 2013
    56. W.-S. Liu*, H.-C. Hu, N.-W. Pu, and S.-C. Liang, “Development of a Ti/TiN composite structure as the diffusion barrier layer in CIGS solar cells on stainless steel substrates” , TACT- International Thin Films Conference, 2013
    57. W.-S. Liu*, C.-H. Chang*, S.-Y. Wu, C.-H. Tseng, C.-Y. Hung, J.-L. Huang, “Quality Improvement of Ga-doped TiZnO for Application as a Transparent Conductive Anode in Blue Phosphorescent OLEDs” , TACT- International Thin Films Conference, 2013
    58. W.-S. Liu*, Y.-F. Chen, Y.-M. Wang, “Development of Transparent Ti-doped GaZnO as TFT channel layer for enhancing the device performance of ZnO based TFT”, TACT- International Thin Films Conference, 2013
    59. W.-S. Liu*, Y.-F. Chen, Y.-M. Wang, “Enhanced Device Characteristics of Transparent Thin-Film Transistors with a GaTiZnO/ InGaZnO4 Double-Layer Channel Structure”, TACT- International Thin Films Conference, 2013
    60. W.-S. Liu*, S.-Y. Wu, C.-H. Tseng, and C.-Y. Hung “Development of high-quality titanium-doped gallium ZnO transparent conductive films by RF magnetron sputtering techniques”, 40th International Symposium on Compound Semiconductors- ISCS, Kobe, Japan, 2013.
    61. W.-S. Liu*, Y.-T. Wang, C.-M. Chang, W.-Y. Qiu, and C.-Fang “Study of carry dynamics of vertically aligned InAs/GaAsSb quantum dot structures”, 40th International Symposium on Compound Semiconductors- ISCS, Kobe, Japan, 2013.
    62. W.-S. Liu*, S.-Y. Wu, C.-Y. Hung, C.-H. Tseng, J.-L. Huang, I-C. Lien, Y.-S. Chang, and C.-H. Chang* “Optoelectronic Properties Enhancement of OLED by Ga-doped TiZnO Transparent Conductive Oxide Film”, International Display Manufacturing Conference- IDMC, Taipei, Taiwan, 2013.
    63. W.-S. Liu*, Hsin-Lun Tseng, Tien-Hao Huang, Ting-Fu Chu, Po-Chen Kuo, Fu-Hsiang Tsao, and Jen-Inn Chyi “Characteristic improvements of vertically aligned columnar quantum dot solar cell with a GaAsSb capping layer”, Proceedings of SPIE - The International Society for Optical Engineering, Vol. 8471, pp. 21 2012.
    64. Hsueh, K.-P., Cheng, Y.-C., Lin, W.-Y., Chiu, H.-C., Huang, Y.-P., Chi, G.-C., W.-S. Liu*., “Physical properties of Al-doped MgZnO film grown by RF magnetron sputtering using ZnO/MgO/Al 2O 3 target”, Proceedings of SPIE - The International Society for Optical Engineering, 2011.
    65. Hsin-Lun Tseng, W.-S. Liu*, Po-Chen Kuo, Tien-Hao Huang, Ting-Fu Chu and Jen-Inn Chyi, “Improvement of optical characteristics of InAs/InGaAsSb quantum dot structures with long excited-state emission at 1.31 μm”, Optics & Photonics Taiwan, International Conference, OPTIC 2012, Taipei, R.O.C., 2012.
    66. Ting-Fu Chu, W.-S. Liu*, Tien-Hao Huang1, Po-Chen Kuo, Hsin-Lun Tseng, and Jen-Inn Chyi, “Improving the optical properties of vertically aligned InAs/GaAsSb quantum dot structure by thermal annealing”, Optics & Photonics Taiwan, International Conference, OPTIC 2012, Taipei, R.O.C., 2012.
    67. Tien-Hao Huang, W.-S. Liu*, Ting-Fu Chu, Hsin-Lun Tseng, and Po-Chen Kuo, “The enhancement of the carrier lifetime in columnar InAs/GaAsSb quantum dot structure by thermal-annealing induced Sb segregation”, Intl. Conf. on International Electron Devices and Materials Symposium, Kaohsiung, R.O.C., 2012.
    68. Po-Chen Kuo, W.-S. Liu*, Hsin-Lun Tseng, Ting-Fu Chu, and Tien-Hao Huang, “Enhancing the optical characteristics of InAs/InGaAsSb quantum dots by rapid-thermal annealing”, Intl. Conf. on International Electron Devices and Materials Symposium, Kaohsiung, R.O.C., 2012.
    69. W.-S. Liu*, Ching-Min Chang, Wen-Yu Qiu, and Chi Fang, “Study of time-resolved photoluminescence properties of InAs/InGaAsSb quantum dot structures”, Intl. Conf. on International Electron Devices and Materials Symposium, Kaohsiung, R.O.C., 2012.
    70. W.-S. Liu*, Shen-Yu Wu, Chao-Yu Hung, and Ching-Hsuan Tseng, “Improvement of the Optoelectronic Properties of Ga-doped TiZnO Transparent Conductive Oxide Thin Films”, Intl. Conf. on International Electron Devices and Materials Symposium, Kaohsiung, R.O.C., 2012.
    71. W.-S. Liu*, Y.-T Wang, and J.-I Chyi, “Carrier Lifetime Investigation in Type-II Vertical Aligned InAs Quantum Dot Structure with a GaAsSb Strain-Reducing Layer”, International Photonics Conference, Tainan, R.O.C. , 2011.
    72. W.-S. Liu*, H.-M. Wu, F.-H. Tsao, T.-L. Hsu, Y.-A. Liao and J.-I. Chyi, “Enhancement of intermediate band solar cell by applying vertically aligned InAs/GaAsSb quantum dot structure”, International Photonics Conference, Tainan, R.O.C., 2011.
    73. W.-S. Liu*, and W.-K. Chen, “Transparent Conductive Ga-doped MgxZn1-xO Films with High Optical Transmittance Prepared by Radio Frequency Magnetron Sputtering”, International Electron Devices and Materials Symposium, Tainan, R.O.C., 2011.
    74. W.-S. Liu*, Y.-H. Liu and W.-K. Chen, “Structure Properties of Transparent Conductive GMZO/Ag/GMZO Sandwich Structure with Different Layer Thickness and Post-Annealing Temperature”, International Electron Devices and Materials Symposium, Tainan, R.O.C., 2011.
    75. W.S. Liu*, H.-M. Wu, T.-L. Hsu, F.-H. Tsao, Y.-A. Liao, and J.-I. Chyi, “Enhancement of intermediate band solar cell by vertically aligned InAs/GaAsSb quantum dots”, 38th International Symposium on Compound Semiconductors- ISCS, Berlin, Germany, 2011.
    76. W.S. Liu*, H.-M. Wu, Y.-A. Liao, J.-I. Chyi, W.-Y. Chen, T.-M. Hsu, “High Optical Property Vertically Aligned InAs Quantum Dot Structures with GaAsSb Overgrown Layers”, 16th Intl. Conf. on Molecular Beam Epitaxy, Berlin, Germany, 2010.
    77. H.-M. Wu, W.-S. Liu*, T.-L. Hsu, Y.-T. Wang, and J.-I. Chyi, “Enhancemet of Dot Size Uniformity in Vertically Aligned InAs/GaAsSb Structure”, Intl. Conf. on Optics and Photonics in Taiwan, Tainan, R.O.C., 2010
    78. W.-K. Chen, K.-P. Hsueh*, W.-S. Liu, Y.-P. Huang, and Y.-H. Lin, “Effect of rapid thermal annealing on Al-doped MgxZn1-xO films prepared by radio-frequency magnetron sputtering”, Intl. Conf. on Optics and Photonics in Taiwan, Tainan, R.O.C., 2010
    79. W.-S. Liu*, H.-M. Wu, F.-H. Tsao, Y.-A. Liao, J.-I. Chyi, W.-Y. Chen, and T.-M. Hsu, “High Optical Property Vertical Aligned InAs Quantum Dot Structures with GaAsSb Overgrown Layers”, Intl. Conf. on Optics and Photonics in Taiwan, Tainan, R.O.C., 2010
    80. D.-C. Wu, Y.-C. Lin, M.-H. Mao, W. S. Liu, P. C. Chiu, J.-I. Chyi, J. S. Wang, Gray Lin, and J. Y. Chi, “Temperature Dependences of Quantum-Dot Laser Thresholds under Simultaneously Three-State or Two-State Lasing Operations”, IEEE CLEO/QELS, San Jose, U.S.A., 2008.
    81. J.-W. Shi, Y.-T. Li, C.-L. Pan, C.-H. Chiu, W.- S. Liu, J.-I. Chyi , “Characterization of a Sub- THz Photonic Transmitter Based on a Separated- Transport- Recombination Photodiode”, CLEO/QELS, Baltimore, U.S.A., 2007.
    82. Lu, J.-Y., Chen, L.-J., Kao, T.-F., Chang, H.-H., Sun, C.-K., Liu, A-S., Yu, Y.-C., Wu, R.-B., Liu, W.-S., Chyi, J.-I., “Terahertz biochip for illicit drug detection”, IEEE Conference on Lasers and Electro-Optics, California, U.S.A., 2006.
    83. M.-J. Shiau, P.-C. Chiu, W.-S. Liu, T.-P. Hsieh, and J.-I. Chyi , “The Effects of Antimony Irradiation on the Optical Properties of InAs QDs ”, Optics and Photonics, Hsinchu , Taiwan, R.O.C., Dec. 2006.
    84. W.-S. Liu, J.-I. Chyi, W.-Y. Chen, H.-S. Chang, and T.M. Hsu, “Enhanced thermal stability and emission intensity of InAs quantum dots covered by InGaAsSb strain-reducing layer.” 14th Intl. Conf. on MBE, Tokyo, Japan, 2006.
    85. J.-W. Shi, Y.-T. Li, C.-L. Pan, M.-L. Lin, Y.-S. Wu, W.-S. Liu, J.-I. Chyi, “Separated-Transport-Recombination p-i-n Photodiode (STR-PD) with High-Speed and High-Power Performance under Continuous-Wave (CW) Operation”, IEEE Conference on Lasers and Electro-Optics, California, U.S.A., 2006.
    86. W.-S. Liu, J.-I. Chyi, W.-Y. Chen, H.-S. Chang, and T.M. Hsu, “Enhanced thermal stability and emission intensity of InAs quantum dots covered by InGaAsSb strain-reducing layer.” Molecular Beam Epitaxy and High-k Materials Workshop, Jhongli, Taiwan, R.O.C, 2006.
    87. Lu, J.-Y., Chen, L.-J., Kao, T.-F., Chang, H.-H., Liu, A.-S., Yu, Y.-C., Wu, R.-B., Liu, W.-S., Chyi, J.-I., Pan, C.-L., Tsai, M.-C., Sun, C.-K., “Terahertz biochip based on optoelectronic devices”, Proceedings of SPIE - The International Society for Optical Engineering, 2005.
    88. J.-I. Chyi , W.-S. Liu, T.-P. Hsieh, T. M. Hsu, W. H. Chang, W. Y. Chen and H. S. Chang, “Progress on InAs-Based Quantum Dot Light Emitters”, SPIE Asia-Pacific Optical Communications, Shanghai. China, 2005.
    89. M.-H. Mao, L.-C. Su, K.-C. Wang, W.-S. Liu, P.-C. Chiu, J.-I. Chyi, ” Spectrally-resolved dynamics of two-state lasing in quantum-dot lasers”, Lasers and Electro-Optics Society, Australia, 2005.
    90. W.-S. Liu, Holin Chang, and J.-I. Chyi, “Effects of dot-height uniformity on the performance of 1.3 um InAs quantum dot lasers”, Molecular Beam Epitaxy, Hsinchu, Taiwan, R.O.C, 2005.
    91. S.-H. Chen, N.-T. Yeh, W.-S. Liu, and J.-I. Chyi, “Effects of spacer thickness on the performance of InGaAs/GaAs quantum dot lasers”, MRS Fall Meeting, Boston, U.S.A., 2001.
    92. Yeh, N.-T., Liu, W.-S., Chen, S.-H., Chiu, P.-J,.and Chyi, J.-I, “InAs/GaAs quantum dot lasers with InGaP cladding layer grown by solid-source molecular beam epitaxy” 13th Intl. Conf. InP Related Materials, Nara, Japan, 2001.
    93. N.-T. Yeh, W.-S. Liu, S.-H. Chen and J.-I. Chyi, “Effects of Spacer Thickness on the Performance of InGaAs/GaAs Quantum Dot Lasers”, MRS Fall Meeting, Boston, U.S.A., 2000.
    94.  W.-S. Liu, S.-H. Chen, N.-T. Yeh, T.-E. Nee and J.-I. Chyi, “Suppressing Temperature-Dependence of Emission Wavelength of Self-Assembled InAs Quantum Dots”, Optics and Photonics Taiwan’99, Chung-Li, Taiwan, 1999.

  • 研究計畫

    100年度-國科會- 新穎量子點中間帶太陽能電池結構研究與設計(I)

    101年度-國科會- 第二型態垂直耦合含銻量子點中間能帶太陽能電池(I)

    101年度-中科院- CIGS元件反射層阻障層及背電場研究

    102年度-國科會- 高性能中間帶量子點太陽能電池之研製(I)

    102年度-中科院- 低溫製備高導電性透明導電薄膜與金屬電極圖形優化研究

    103年度-科技部- 具長波長吸收之高效率量子點太陽能電池

    104年度-科技部- 提升量子點太陽能電池光電轉換效率之研製

    105年度-科技部- 以銅鋅錫硫吸收層製備可撓式薄膜太陽能電池

    106-108年度-科技部- 先進多層堆疊量子點太陽能電池

    108-110年度-中科院-銻化鎵第二型超晶格紅外光偵測器之研製-共同主持

    109年度-科技部- 以分子束磊晶進行砷化銦/銻化鎵第二型態超晶格紅外光偵測器之研製

    109年度-科技部- 以多重混和電漿製程研製高性能IGZO 薄膜電晶體元件

    110-112年度-科技部- 第二型態雙波段砷化銦/銻化鎵超晶格紅外光偵測器之製備

  • 相關著作與專利

    1. 劉維昇、林孝謙、劉人祐，“具高能隙半導體材料之量子點結構” 中華民國專利，M528017，2016。
    2. 梁仕昌;李可鼎;吳政翰;林瑤冷;倪國裕;劉維昇;張鈺琳;吳聲佑，“具高導電性及高穿透率之複合式薄膜結構” 中華民國，新型專利第 M497333號，2015.
    3. 劉維昇、綦振瀛，“含銻化合物之量子點光電元件”，中華民國專利，發明第 I 328291 號，2010.
    4. W.-S. Liu, and J.-I. Chyi, “Quantum dot optoelectronic device having an Sb-containing overgrown layer” U.S. Patent, US7,456,423B2, 2008.

  • 得獎事蹟

    得獎事蹟

    • 2017年台灣真空學會第六屆:年輕學者獎
    • 2017年台灣真空學會:論文海報佳作獎
    • 2016年中國電機工程學會：優秀青年電機工程師獎
    • 2016年元智大學教師評鑑: 研究傑出獎
    • 國際電子元件與材料研討會(IEDMS), 2014： 最佳論文獎
    • 教育部奈米專題成果競賽：博士班組第一名
    • 台灣分子束磊晶研討會：學生論文獎第一名
    • 2007年社會優秀青年
    • 中華民國斐陶斐學會榮譽會員


    於LED製造公司-晶元光電服務期間，獲頒：

    • 2008年傑出貢獻獎
    • 2007年卓越報告獎


    在研究團隊建立、人才培育及服務方面的重要貢獻及成就:

    • 指導學生楊庭愷、連德宇，獲 106學年度電機通訊學院學生工程論文競賽:特優等獎
    • 指導學生林帝廷，獲 2017年 台灣真空學會論文發表會:佳作獎
    • 指導學生陳詩元，獲 2017年 OPTIC研討會海報論文: 最佳論文獎 Best Paper Award
    • 指導學生林孝謙、吳敏，獲 2014年中國工程師學會論文競賽：電子組第二名
    • 指導學生林孝謙、張清閔，獲 2014年 International Electron Devices and Materials Symposia Conference(IEDMS)： 最佳論文獎 Best Paper Award!!
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