中国物理B ›› 2016, Vol. 25 ›› Issue (10): 107202-107202.doi: 10.1088/1674-1056/25/10/107202

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇    下一篇

First-principles hybrid functional study of the electronic structure and charge carrier mobility in perovskite CH3NH3SnI3

Li-Juan Wu(伍丽娟), Yu-Qing Zhao(赵宇清), Chang-Wen Chen(陈畅文), Ling-Zhi Wang(王琳芝), Biao Liu(刘标), Meng-Qiu Cai(蔡孟秋)   

  1. 1 School of Physics and Electronics Science, Hunan University, Changsha 410082, China;
    2 Yali Middle School, Changsha 410007, China
  • 收稿日期:2016-03-25 修回日期:2016-06-01 出版日期:2016-10-05 发布日期:2016-10-05
  • 通讯作者: Meng-Qiu Cai E-mail:mqcai@hnu.edu.cn
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 51172067), the Hunan Provincial Natural Science Fund for Distinguished Young Scholars, China (Grant No. 13JJ1013), the Specialized Research Fund for the Doctoral Program of Higher Education, China (Grant No. 20130161110036), and the New Century Excellent Talents in University, China (Grant No. NCET-12-0171.D).

First-principles hybrid functional study of the electronic structure and charge carrier mobility in perovskite CH3NH3SnI3

Li-Juan Wu(伍丽娟)1, Yu-Qing Zhao(赵宇清)1, Chang-Wen Chen(陈畅文)2, Ling-Zhi Wang(王琳芝)1, Biao Liu(刘标)1, Meng-Qiu Cai(蔡孟秋)1   

  1. 1 School of Physics and Electronics Science, Hunan University, Changsha 410082, China;
    2 Yali Middle School, Changsha 410007, China
  • Received:2016-03-25 Revised:2016-06-01 Online:2016-10-05 Published:2016-10-05
  • Contact: Meng-Qiu Cai E-mail:mqcai@hnu.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 51172067), the Hunan Provincial Natural Science Fund for Distinguished Young Scholars, China (Grant No. 13JJ1013), the Specialized Research Fund for the Doctoral Program of Higher Education, China (Grant No. 20130161110036), and the New Century Excellent Talents in University, China (Grant No. NCET-12-0171.D).

摘要: We calculate the electronic properties and carrier mobility of perovskite CH3NH3SnI3 as a solar cell absorber by using the hybrid functional method. The calculated result shows that the electron and hole mobilities have anisotropies with a large magnitude of 1.4×104 cm2·V-1·s-1 along the y direction. In view of the huge difference between hole and electron mobilities, the perovskite CH3NH3SnI3 can be considered as a p-type semiconductor. We also discover a relationship between the effective mass anisotropy and electronic occupation anisotropy. The above results can provide reliable guidance for its experimental applications in electronics and optoelectronics.

关键词: charge carrier mobility, nontoxic perovskite, solar cell absorber, HSE06 calculations, effective masses anisotropy

Abstract: We calculate the electronic properties and carrier mobility of perovskite CH3NH3SnI3 as a solar cell absorber by using the hybrid functional method. The calculated result shows that the electron and hole mobilities have anisotropies with a large magnitude of 1.4×104 cm2·V-1·s-1 along the y direction. In view of the huge difference between hole and electron mobilities, the perovskite CH3NH3SnI3 can be considered as a p-type semiconductor. We also discover a relationship between the effective mass anisotropy and electronic occupation anisotropy. The above results can provide reliable guidance for its experimental applications in electronics and optoelectronics.

Key words: charge carrier mobility, nontoxic perovskite, solar cell absorber, HSE06 calculations, effective masses anisotropy

中图分类号:  (Charge carriers: generation, recombination, lifetime, and trapping)

  • 72.20.Jv
82.47.Jk (Photoelectrochemical cells, photoelectrochromic and other hybrid electrochemical energy storage devices) 71.20.-b (Electron density of states and band structure of crystalline solids) 88.05.Tg (Energy use in lighting)