中国物理B ›› 2020, Vol. 29 ›› Issue (1): 10703-010703.doi: 10.1088/1674-1056/ab5fb8

• SPECIAL TOPIC—Recent advances in thermoelectric materials and devices • 上一篇    下一篇

Low temperature photoluminescence study of GaAs defect states

Jia-Yao Huang(黄佳瑶), Lin Shang(尚林), Shu-Fang Ma(马淑芳), Bin Han(韩斌), Guo-Dong Wei(尉国栋), Qing-Ming Liu(刘青明), Xiao-Dong Hao(郝晓东), Heng-Sheng Shan(单恒升), Bing-She Xu(许并社)   

  1. 1 Institute of Atomic and Molecular Science, Shaanxi University of Science and Technology, Xi'an 710021, China;
    2 Key Laboratory of Interface Science and Engineering in Advanced Materials of Ministry of Education, Taiyuan University of Technology, Taiyuan 030024, China
  • 收稿日期:2019-08-26 修回日期:2019-11-17 出版日期:2020-01-05 发布日期:2020-01-05
  • 通讯作者: Shu-Fang Ma, Bing-She Xu E-mail:xubs@tyut.edu.cn;mashufang@sust.edu.cn
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 21972103), the National Key Research and Development Program of China (Grant No. 2016YFB040183), and Research and Development Program of Shanxi Province, China (Grant No. 201703D111026).

Low temperature photoluminescence study of GaAs defect states

Jia-Yao Huang(黄佳瑶)1, Lin Shang(尚林)1, Shu-Fang Ma(马淑芳)1, Bin Han(韩斌)1, Guo-Dong Wei(尉国栋)1, Qing-Ming Liu(刘青明)1, Xiao-Dong Hao(郝晓东)1, Heng-Sheng Shan(单恒升)1, Bing-She Xu(许并社)1,2   

  1. 1 Institute of Atomic and Molecular Science, Shaanxi University of Science and Technology, Xi'an 710021, China;
    2 Key Laboratory of Interface Science and Engineering in Advanced Materials of Ministry of Education, Taiyuan University of Technology, Taiyuan 030024, China
  • Received:2019-08-26 Revised:2019-11-17 Online:2020-01-05 Published:2020-01-05
  • Contact: Shu-Fang Ma, Bing-She Xu E-mail:xubs@tyut.edu.cn;mashufang@sust.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 21972103), the National Key Research and Development Program of China (Grant No. 2016YFB040183), and Research and Development Program of Shanxi Province, China (Grant No. 201703D111026).

摘要: Low temperature (77 K) photoluminescence measurements have been performed on different GaAs substrates to evaluate the GaAs crystal quality. Several defect-related luminescence peaks have been observed, including 1.452 eV, 1.476 eV, 1.326 eV peaks deriving from 78 meV GaAs antisite defects, and 1.372 eV, 1.289 eV peaks resulting from As vacancy related defects. Changes in photoluminescence emission intensity and emission energy as a function of temperature and excitation power lead to the identification of the defect states. The luminescence mechanisms of the defect states were studied by photoluminescence spectroscopy and the growth quality of GaAs crystal was evaluated.

关键词: low temperature photoluminescence, Gam As antisite defects, luminescence mechanisms of defect states, GaAs crystal quality

Abstract: Low temperature (77 K) photoluminescence measurements have been performed on different GaAs substrates to evaluate the GaAs crystal quality. Several defect-related luminescence peaks have been observed, including 1.452 eV, 1.476 eV, 1.326 eV peaks deriving from 78 meV GaAs antisite defects, and 1.372 eV, 1.289 eV peaks resulting from As vacancy related defects. Changes in photoluminescence emission intensity and emission energy as a function of temperature and excitation power lead to the identification of the defect states. The luminescence mechanisms of the defect states were studied by photoluminescence spectroscopy and the growth quality of GaAs crystal was evaluated.

Key words: low temperature photoluminescence, Gam As antisite defects, luminescence mechanisms of defect states, GaAs crystal quality

中图分类号:  (Optical instruments and equipment)

  • 07.60.-j
81.05.-t (Specific materials: fabrication, treatment, testing, and analysis) 81.05.Ea (III-V semiconductors)