共 50 条
- [21] Preparation and characteristic study of Schottky diodes based on Ga2O3 thin filmsTheJournalofChinaUniversitiesofPostsandTelecommunications, 2024, 31 (02) : 28 - 37Zhang Xuhui论文数: 0 引用数: 0 h-index: 0机构: School of Electronic EngineeringChen Haifeng论文数: 0 引用数: 0 h-index: 0机构: School of Electronic EngineeringLiu Xiangtai论文数: 0 引用数: 0 h-index: 0机构: School of Electronic EngineeringLu Qin论文数: 0 引用数: 0 h-index: 0机构: School of Electronic EngineeringWang Zhan论文数: 0 引用数: 0 h-index: 0机构: School of Electronic EngineeringCheng Hang论文数: 0 引用数: 0 h-index: 0机构: School of Electronic EngineeringChe Lujie论文数: 0 引用数: 0 h-index: 0机构: School of Electronic EngineeringGuan Youyou论文数: 0 引用数: 0 h-index: 0机构: School of Electronic EngineeringHan Xiaocong论文数: 0 引用数: 0 h-index: 0机构: School of Electronic Engineering
- [22] Electrical Characterizations of Planar Ga2O3 Schottky Barrier DiodesMICROMACHINES, 2021, 12 (03) : 1 - 8Zhang, Shiyu论文数: 0 引用数: 0 h-index: 0机构: Beijing Univ Posts & Telecommun, Sch Sci, Lab Informat Funct Mat & Devices, Beijing 100876, Peoples R China Beijing Univ Posts & Telecommun, State Key Lab Informat Photon & Opt Commun, Beijing 100876, Peoples R China Beijing Univ Posts & Telecommun, Sch Sci, Lab Informat Funct Mat & Devices, Beijing 100876, Peoples R ChinaLiu, Zeng论文数: 0 引用数: 0 h-index: 0机构: Beijing Univ Posts & Telecommun, Sch Sci, Lab Informat Funct Mat & Devices, Beijing 100876, Peoples R China Beijing Univ Posts & Telecommun, State Key Lab Informat Photon & Opt Commun, Beijing 100876, Peoples R China Nanjing Univ Posts & Telecommun, Coll Elect & Opt Engn, Nanjing 210023, Peoples R China Nanjing Univ Posts & Telecommun, Coll Microelect, Nanjing 210023, Peoples R China Nanjing Univ Posts & Telecommun, Natl & Local Joint Engn Lab RF Integrat & Micropa, Nanjing 210023, Peoples R China Beijing Univ Posts & Telecommun, Sch Sci, Lab Informat Funct Mat & Devices, Beijing 100876, Peoples R ChinaLiu, Yuanyuan论文数: 0 引用数: 0 h-index: 0机构: Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China Chinese Acad Sci, Engn Res Ctr Semicond Integrated Technol, Inst Semicond, Beijing 100083, Peoples R China Beijing Univ Posts & Telecommun, Sch Sci, Lab Informat Funct Mat & Devices, Beijing 100876, Peoples R ChinaZhi, Yusong论文数: 0 引用数: 0 h-index: 0机构: Beijing Univ Posts & Telecommun, Sch Sci, Lab Informat Funct Mat & Devices, Beijing 100876, Peoples R China Beijing Univ Posts & Telecommun, State Key Lab Informat Photon & Opt Commun, Beijing 100876, Peoples R China Beijing Univ Posts & Telecommun, Sch Sci, Lab Informat Funct Mat & Devices, Beijing 100876, Peoples R ChinaLi, Peigang论文数: 0 引用数: 0 h-index: 0机构: Beijing Univ Posts & Telecommun, Sch Sci, Lab Informat Funct Mat & Devices, Beijing 100876, Peoples R China Beijing Univ Posts & Telecommun, State Key Lab Informat Photon & Opt Commun, Beijing 100876, Peoples R China Beijing Univ Posts & Telecommun, Sch Sci, Lab Informat Funct Mat & Devices, Beijing 100876, Peoples R ChinaWu, Zhenping论文数: 0 引用数: 0 h-index: 0机构: Beijing Univ Posts & Telecommun, Sch Sci, Lab Informat Funct Mat & Devices, Beijing 100876, Peoples R China Beijing Univ Posts & Telecommun, State Key Lab Informat Photon & Opt Commun, Beijing 100876, Peoples R China Beijing Univ Posts & Telecommun, Sch Sci, Lab Informat Funct Mat & Devices, Beijing 100876, Peoples R ChinaTang, Weihua论文数: 0 引用数: 0 h-index: 0机构: Beijing Univ Posts & Telecommun, Sch Sci, Lab Informat Funct Mat & Devices, Beijing 100876, Peoples R China Beijing Univ Posts & Telecommun, State Key Lab Informat Photon & Opt Commun, Beijing 100876, Peoples R China Nanjing Univ Posts & Telecommun, Coll Elect & Opt Engn, Nanjing 210023, Peoples R China Nanjing Univ Posts & Telecommun, Coll Microelect, Nanjing 210023, Peoples R China Nanjing Univ Posts & Telecommun, Natl & Local Joint Engn Lab RF Integrat & Micropa, Nanjing 210023, Peoples R China Beijing Univ Posts & Telecommun, Sch Sci, Lab Informat Funct Mat & Devices, Beijing 100876, Peoples R China
- [23] Transient thermal characterization of β-Ga2O3 Schottky barrier diodesIEICE ELECTRONICS EXPRESS, 2022, 19 (06):Seki, Shota论文数: 0 引用数: 0 h-index: 0机构: Osaka Univ, Dept Elect Engn, 2-1 Suita Shi, Suita, Osaka 5650871, Japan Osaka Univ, Dept Elect Engn, 2-1 Suita Shi, Suita, Osaka 5650871, JapanFunaki, Tsuyoshi论文数: 0 引用数: 0 h-index: 0机构: Osaka Univ, Dept Elect Engn, 2-1 Suita Shi, Suita, Osaka 5650871, Japan Osaka Univ, Dept Elect Engn, 2-1 Suita Shi, Suita, Osaka 5650871, JapanArima, Jun论文数: 0 引用数: 0 h-index: 0机构: TDK Corp, 2-15-7 Higashi Ohwada, Ichikawa, Chiba 2728558, Japan Osaka Univ, Dept Elect Engn, 2-1 Suita Shi, Suita, Osaka 5650871, JapanFujita, Minoru论文数: 0 引用数: 0 h-index: 0机构: TDK Corp, 2-15-7 Higashi Ohwada, Ichikawa, Chiba 2728558, Japan Osaka Univ, Dept Elect Engn, 2-1 Suita Shi, Suita, Osaka 5650871, JapanHirabayashi, Jun论文数: 0 引用数: 0 h-index: 0机构: TDK Corp, 2-15-7 Higashi Ohwada, Ichikawa, Chiba 2728558, Japan Osaka Univ, Dept Elect Engn, 2-1 Suita Shi, Suita, Osaka 5650871, JapanHanabusa, Kazuyoshi论文数: 0 引用数: 0 h-index: 0机构: TDK Corp, 2-15-7 Higashi Ohwada, Ichikawa, Chiba 2728558, Japan Osaka Univ, Dept Elect Engn, 2-1 Suita Shi, Suita, Osaka 5650871, Japan
- [24] Ga2O3 Schottky Barrier Diodes Fabricated by Using Single-Crystal β-Ga2O3 (010) SubstratesIEEE ELECTRON DEVICE LETTERS, 2013, 34 (04) : 493 - 495Sasaki, Kohei论文数: 0 引用数: 0 h-index: 0机构: Tamura Corp, Sayama, Osaka 3501328, Japan Natl Inst Informat & Commun Technol, Tokyo 1848795, Japan Tamura Corp, Sayama, Osaka 3501328, JapanHigashiwaki, Masataka论文数: 0 引用数: 0 h-index: 0机构: Natl Inst Informat & Commun Technol, Tokyo 1848795, Japan Japan Sci & Technol Agcy, Precursory Res Embryon Sci & Technol, Tokyo 1020075, Japan Tamura Corp, Sayama, Osaka 3501328, JapanKuramata, Akito论文数: 0 引用数: 0 h-index: 0机构: Tamura Corp, Sayama, Osaka 3501328, Japan Tamura Corp, Sayama, Osaka 3501328, JapanMasui, Takekazu论文数: 0 引用数: 0 h-index: 0机构: Koha Co Ltd, Tokyo 1760022, Japan Tamura Corp, Sayama, Osaka 3501328, JapanYamakoshi, Shigenobu论文数: 0 引用数: 0 h-index: 0机构: Tamura Corp, Sayama, Osaka 3501328, Japan Tamura Corp, Sayama, Osaka 3501328, Japan
- [25] Study of the Abnormally High Photocurrent Relaxation Time in α-Ga2O3-Based Schottky DiodesRussian Microelectronics, 2023, 52 (08) : 827 - 834Schemerov I.V.论文数: 0 引用数: 0 h-index: 0机构: National University of Science and Technology MISiS, Moscow National University of Science and Technology MISiS, MoscowPolyakov A.Y.论文数: 0 引用数: 0 h-index: 0机构: National University of Science and Technology MISiS, Moscow National University of Science and Technology MISiS, MoscowAlmaev A.V.论文数: 0 引用数: 0 h-index: 0机构: Tomsk State University, Tomsk National University of Science and Technology MISiS, MoscowNikolaev V.I.论文数: 0 引用数: 0 h-index: 0机构: Ioffe Physical-Technical Institute, Russian Academy of Sciences, St. Petersburg National University of Science and Technology MISiS, MoscowKobeleva S.P.论文数: 0 引用数: 0 h-index: 0机构: National University of Science and Technology MISiS, Moscow National University of Science and Technology MISiS, MoscowVasilyev A.A.论文数: 0 引用数: 0 h-index: 0机构: National University of Science and Technology MISiS, Moscow National University of Science and Technology MISiS, MoscowKirilov V.D.论文数: 0 引用数: 0 h-index: 0机构: National University of Science and Technology MISiS, Moscow National University of Science and Technology MISiS, MoscowKochkova A.I.论文数: 0 引用数: 0 h-index: 0机构: National University of Science and Technology MISiS, Moscow National University of Science and Technology MISiS, MoscowKopiev V.V.论文数: 0 引用数: 0 h-index: 0机构: Tomsk State University, Tomsk National University of Science and Technology MISiS, MoscowKulanchikov Y.O.论文数: 0 引用数: 0 h-index: 0机构: National University of Science and Technology MISiS, Moscow National University of Science and Technology MISiS, Moscow
- [26] Device topological thermal management of β-Ga2O3 Schottky barrier diodesCHINESE PHYSICS B, 2021, 30 (06)Yu, Yang-Tong论文数: 0 引用数: 0 h-index: 0机构: Univ Sci & Technol China, Sch Microelect, Hefei 230026, Peoples R China Univ Sci & Technol China, Sch Microelect, Hefei 230026, Peoples R ChinaXiang, Xue-Qiang论文数: 0 引用数: 0 h-index: 0机构: Univ Sci & Technol China, Sch Microelect, Hefei 230026, Peoples R China Univ Sci & Technol China, Sch Microelect, Hefei 230026, Peoples R ChinaZhou, Xuan-Ze论文数: 0 引用数: 0 h-index: 0机构: Univ Sci & Technol China, Sch Microelect, Hefei 230026, Peoples R China Univ Sci & Technol China, Sch Microelect, Hefei 230026, Peoples R ChinaZhou, Kai论文数: 0 引用数: 0 h-index: 0机构: Univ Sci & Technol China, Sch Microelect, Hefei 230026, Peoples R China Univ Sci & Technol China, Sch Microelect, Hefei 230026, Peoples R ChinaXu, Guang-Wei论文数: 0 引用数: 0 h-index: 0机构: Univ Sci & Technol China, Sch Microelect, Hefei 230026, Peoples R China Univ Sci & Technol China, Sch Microelect, Hefei 230026, Peoples R ChinaZhao, Xiao-Long论文数: 0 引用数: 0 h-index: 0机构: Univ Sci & Technol China, Sch Microelect, Hefei 230026, Peoples R China Univ Sci & Technol China, Sch Microelect, Hefei 230026, Peoples R ChinaLong, Shi-Bing论文数: 0 引用数: 0 h-index: 0机构: Univ Sci & Technol China, Sch Microelect, Hefei 230026, Peoples R China Univ Sci & Technol China, Sch Microelect, Hefei 230026, Peoples R China
- [27] Properties of Schottky barrier diodes on heteroeptixial α-Ga2O3 thin filmsJOURNAL OF VACUUM SCIENCE & TECHNOLOGY A, 2023, 41 (04):Koepp, S.论文数: 0 引用数: 0 h-index: 0机构: Univ Leipzig, Felix Bloch Inst Festkorperphys, Fak Phys & Geowissensch, Linnestr 5, D-04103 Leipzig, Germany Univ Leipzig, Felix Bloch Inst Festkorperphys, Fak Phys & Geowissensch, Linnestr 5, D-04103 Leipzig, GermanyPetersen, C.论文数: 0 引用数: 0 h-index: 0机构: Univ Leipzig, Felix Bloch Inst Festkorperphys, Fak Phys & Geowissensch, Linnestr 5, D-04103 Leipzig, Germany Univ Leipzig, Felix Bloch Inst Festkorperphys, Fak Phys & Geowissensch, Linnestr 5, D-04103 Leipzig, GermanySplith, D.论文数: 0 引用数: 0 h-index: 0机构: Univ Leipzig, Felix Bloch Inst Festkorperphys, Fak Phys & Geowissensch, Linnestr 5, D-04103 Leipzig, Germany Univ Leipzig, Felix Bloch Inst Festkorperphys, Fak Phys & Geowissensch, Linnestr 5, D-04103 Leipzig, GermanyGrundmann, M.论文数: 0 引用数: 0 h-index: 0机构: Univ Leipzig, Felix Bloch Inst Festkorperphys, Fak Phys & Geowissensch, Linnestr 5, D-04103 Leipzig, Germany Univ Leipzig, Felix Bloch Inst Festkorperphys, Fak Phys & Geowissensch, Linnestr 5, D-04103 Leipzig, Germanyvon Wenckstern, H.论文数: 0 引用数: 0 h-index: 0机构: Univ Leipzig, Felix Bloch Inst Festkorperphys, Fak Phys & Geowissensch, Linnestr 5, D-04103 Leipzig, Germany Univ Leipzig, Felix Bloch Inst Festkorperphys, Fak Phys & Geowissensch, Linnestr 5, D-04103 Leipzig, Germany
- [28] Ga2O3 Schottky barrier and heterojunction diodes for power electronics applicationsGALLIUM NITRIDE MATERIALS AND DEVICES XIII, 2018, 10532Tadjer, Marko J.论文数: 0 引用数: 0 h-index: 0机构: US Navy, Res Lab, 4555 Overlook Ave SW, Washington, DC 20375 USA US Navy, Res Lab, 4555 Overlook Ave SW, Washington, DC 20375 USAMahadik, Nadeemullah A.论文数: 0 引用数: 0 h-index: 0机构: US Navy, Res Lab, 4555 Overlook Ave SW, Washington, DC 20375 USA US Navy, Res Lab, 4555 Overlook Ave SW, Washington, DC 20375 USAFreitas, Jaime A., Jr.论文数: 0 引用数: 0 h-index: 0机构: US Navy, Res Lab, 4555 Overlook Ave SW, Washington, DC 20375 USA US Navy, Res Lab, 4555 Overlook Ave SW, Washington, DC 20375 USAGlaser, Evan R.论文数: 0 引用数: 0 h-index: 0机构: US Navy, Res Lab, 4555 Overlook Ave SW, Washington, DC 20375 USA US Navy, Res Lab, 4555 Overlook Ave SW, Washington, DC 20375 USAKoehler, Andrew D.论文数: 0 引用数: 0 h-index: 0机构: US Navy, Res Lab, 4555 Overlook Ave SW, Washington, DC 20375 USA US Navy, Res Lab, 4555 Overlook Ave SW, Washington, DC 20375 USALuna, Lunet E.论文数: 0 引用数: 0 h-index: 0机构: CNR, NRL, Washington, DC 20375 USA US Navy, Res Lab, 4555 Overlook Ave SW, Washington, DC 20375 USAFeigelson, Boris N.论文数: 0 引用数: 0 h-index: 0机构: US Navy, Res Lab, 4555 Overlook Ave SW, Washington, DC 20375 USA US Navy, Res Lab, 4555 Overlook Ave SW, Washington, DC 20375 USAHobart, Karl D.论文数: 0 引用数: 0 h-index: 0机构: US Navy, Res Lab, 4555 Overlook Ave SW, Washington, DC 20375 USA US Navy, Res Lab, 4555 Overlook Ave SW, Washington, DC 20375 USAKub, Fritz J.论文数: 0 引用数: 0 h-index: 0机构: US Navy, Res Lab, 4555 Overlook Ave SW, Washington, DC 20375 USA US Navy, Res Lab, 4555 Overlook Ave SW, Washington, DC 20375 USAKuramata, A.论文数: 0 引用数: 0 h-index: 0机构: Tamura Corp & Novel Crystal Technol, 2-3-1 Hirosedai, Sayama, Saitama 3501328, Japan US Navy, Res Lab, 4555 Overlook Ave SW, Washington, DC 20375 USA
- [29] Effects of microwave plasma treatment on β-Ga2O3 Schottky barrier diodesSEMICONDUCTOR SCIENCE AND TECHNOLOGY, 2022, 37 (11)Fang, Paiwen论文数: 0 引用数: 0 h-index: 0机构: Sun Yat Sen Univ, Sch Elect & Informat Technol, State Key Lab Optoelect Mat & Technol, HEMC, Gulangzhou 510275, Peoples R China Sun Yat Sen Univ, Sch Elect & Informat Technol, State Key Lab Optoelect Mat & Technol, HEMC, Gulangzhou 510275, Peoples R ChinaRao, Chang论文数: 0 引用数: 0 h-index: 0机构: Sun Yat Sen Univ, Sch Elect & Informat Technol, State Key Lab Optoelect Mat & Technol, HEMC, Gulangzhou 510275, Peoples R China Sun Yat Sen Univ, Sch Elect & Informat Technol, State Key Lab Optoelect Mat & Technol, HEMC, Gulangzhou 510275, Peoples R ChinaLiao, Chao论文数: 0 引用数: 0 h-index: 0机构: Sun Yat Sen Univ, Sch Elect & Informat Technol, State Key Lab Optoelect Mat & Technol, HEMC, Gulangzhou 510275, Peoples R China Sun Yat Sen Univ, Sch Elect & Informat Technol, State Key Lab Optoelect Mat & Technol, HEMC, Gulangzhou 510275, Peoples R ChinaChen, Shujian论文数: 0 引用数: 0 h-index: 0机构: Sun Yat Sen Univ, Sch Elect & Informat Technol, State Key Lab Optoelect Mat & Technol, HEMC, Gulangzhou 510275, Peoples R China Sun Yat Sen Univ, Sch Elect & Informat Technol, State Key Lab Optoelect Mat & Technol, HEMC, Gulangzhou 510275, Peoples R ChinaWu, Zhisheng论文数: 0 引用数: 0 h-index: 0机构: Sun Yat Sen Univ, Sch Elect & Informat Technol, State Key Lab Optoelect Mat & Technol, HEMC, Gulangzhou 510275, Peoples R China Sun Yat Sen Univ, Sch Elect & Informat Technol, State Key Lab Optoelect Mat & Technol, HEMC, Gulangzhou 510275, Peoples R ChinaLu, Xing论文数: 0 引用数: 0 h-index: 0机构: Sun Yat Sen Univ, Sch Elect & Informat Technol, State Key Lab Optoelect Mat & Technol, HEMC, Gulangzhou 510275, Peoples R China Sun Yat Sen Univ, Sch Elect & Informat Technol, State Key Lab Optoelect Mat & Technol, HEMC, Gulangzhou 510275, Peoples R ChinaChen, Zimin论文数: 0 引用数: 0 h-index: 0机构: Sun Yat Sen Univ, Sch Elect & Informat Technol, State Key Lab Optoelect Mat & Technol, HEMC, Gulangzhou 510275, Peoples R China Sun Yat Sen Univ, Sch Elect & Informat Technol, State Key Lab Optoelect Mat & Technol, HEMC, Gulangzhou 510275, Peoples R ChinaWang, Gang论文数: 0 引用数: 0 h-index: 0机构: Sun Yat Sen Univ, Sch Elect & Informat Technol, State Key Lab Optoelect Mat & Technol, HEMC, Gulangzhou 510275, Peoples R China Sun Yat Sen Univ, Foshan Inst, Foshan 528225, Peoples R China Sun Yat Sen Univ, Sch Elect & Informat Technol, State Key Lab Optoelect Mat & Technol, HEMC, Gulangzhou 510275, Peoples R ChinaLiang, Jun论文数: 0 引用数: 0 h-index: 0机构: Peking Univ, Shenzhen Grad Sch, Shenzhen 518055, Peoples R China Shenzhen Inst Informat Technol, Shenzhen 518172, Peoples R China Sun Yat Sen Univ, Sch Elect & Informat Technol, State Key Lab Optoelect Mat & Technol, HEMC, Gulangzhou 510275, Peoples R ChinaPei, Yanli论文数: 0 引用数: 0 h-index: 0机构: Sun Yat Sen Univ, Sch Elect & Informat Technol, State Key Lab Optoelect Mat & Technol, HEMC, Gulangzhou 510275, Peoples R China Sun Yat Sen Univ, Sch Elect & Informat Technol, State Key Lab Optoelect Mat & Technol, HEMC, Gulangzhou 510275, Peoples R China
- [30] Analytical models and simulations analysis of β-Ga2O3 Schottky barrier diodesSCIENTIA SINICA-PHYSICA MECHANICA & ASTRONOMICA, 2023, 53 (07)Zhang, Hongpeng论文数: 0 引用数: 0 h-index: 0机构: Xiamen Univ Technol, Sch Optoelect & Commun Engn, Xiamen 361021, Peoples R China Xiamen Univ Technol, Sch Optoelect & Commun Engn, Xiamen 361021, Peoples R ChinaGuo, Liangliang论文数: 0 引用数: 0 h-index: 0机构: Xidian Univ, Sch Microelect, Key Lab Wide Band Gap Semicond Mat & Devices, Xian 710071, Peoples R China Xiamen Univ Technol, Sch Optoelect & Commun Engn, Xiamen 361021, Peoples R ChinaChen, Chengying论文数: 0 引用数: 0 h-index: 0机构: Xiamen Univ Technol, Sch Optoelect & Commun Engn, Xiamen 361021, Peoples R China Xiamen Univ Technol, Sch Optoelect & Commun Engn, Xiamen 361021, Peoples R ChinaJia, Renxu论文数: 0 引用数: 0 h-index: 0机构: Xidian Univ, Sch Microelect, Key Lab Wide Band Gap Semicond Mat & Devices, Xian 710071, Peoples R China Xiamen Univ Technol, Sch Optoelect & Commun Engn, Xiamen 361021, Peoples R ChinaYuan, Lei论文数: 0 引用数: 0 h-index: 0机构: Xidian Univ, Sch Microelect, Key Lab Wide Band Gap Semicond Mat & Devices, Xian 710071, Peoples R China Xiamen Univ Technol, Sch Optoelect & Commun Engn, Xiamen 361021, Peoples R ChinaPeng, Bo论文数: 0 引用数: 0 h-index: 0机构: Xidian Univ, Sch Microelect, Key Lab Wide Band Gap Semicond Mat & Devices, Xian 710071, Peoples R China Xiamen Univ Technol, Sch Optoelect & Commun Engn, Xiamen 361021, Peoples R ChinaZhang, Yuming论文数: 0 引用数: 0 h-index: 0机构: Xidian Univ, Sch Microelect, Key Lab Wide Band Gap Semicond Mat & Devices, Xian 710071, Peoples R China Xiamen Univ Technol, Sch Optoelect & Commun Engn, Xiamen 361021, Peoples R ChinaLuan, Suzhen论文数: 0 引用数: 0 h-index: 0机构: Xiamen Univ Technol, Sch Optoelect & Commun Engn, Xiamen 361021, Peoples R China Xian Univ Sci & Technol, Coll Commun & Informat Technol, Xian 710054, Peoples R China Xiamen Univ Technol, Sch Optoelect & Commun Engn, Xiamen 361021, Peoples R ChinaZhang, Hongyi论文数: 0 引用数: 0 h-index: 0机构: Xiamen Univ Technol, Sch Optoelect & Commun Engn, Xiamen 361021, Peoples R China Xiamen Univ Technol, Sch Optoelect & Commun Engn, Xiamen 361021, Peoples R ChinaZhang, Yimen论文数: 0 引用数: 0 h-index: 0机构: Xidian Univ, Sch Microelect, Key Lab Wide Band Gap Semicond Mat & Devices, Xian 710071, Peoples R China Xiamen Univ Technol, Sch Optoelect & Commun Engn, Xiamen 361021, Peoples R China