化学学报 ›› 2015, Vol. 73 ›› Issue (3): 219-224.DOI: 10.6023/A14090678 上一篇    下一篇

所属专题: 新型太阳能电池

综述

钙钛矿太阳能电池:器件设计和I-V滞回现象

张烨a, 姚志博a, 林仕伟b, 李建保a,b, 林红a   

  1. a 清华大学材料学院 新型陶瓷与精细工艺国家重点实验室 北京 100084;
    b 海南大学材料与化工学院 海南省硅锆钛资源综合开发与利用重点实验室 海口 570228
  • 投稿日期:2014-09-30 发布日期:2015-02-04
  • 通讯作者: 林红 E-mail:Hong-lin@tsinghua.edu.cn
  • 基金资助:

    项目受国家自然科学基金(Nos. 51272126, 51162007)和科技部国际科技合作项目(Nos. 2013DFG53010, 2015DFG52690)资助.

Perovskite Solar Cells: Device Construction and I-V Hysteresis

Zhang Yea, Yao Zhiboa, Lin Shiweib, Li Jianbaoa,b, Lin Honga   

  1. a State Key Laboratory of New Ceramics & Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China;
    b Key Laboratory of Ministry of Education for Advanced Materials in Tropical Island Resources, Hainan University, Haikou, China, 570228
  • Received:2014-09-30 Published:2015-02-04
  • Supported by:

    Project supported by the National Natural Science Foundation of China (Nos. 51272126, 51162007) and the China-Israel Scientific and Strategic Research Fund (Nos. 2013DFG53010, 2015DFG52690).

基于染料敏化太阳能电池发展起来的有机-无机杂化钙钛矿太阳能电池经过不到5年的快速发展, 光电转换效率从最初的3.8%提高到了经过认证的17.9%. 但是常用结构的钙钛矿太阳能电池在性能测试过程中的电流-电压(I-V)曲线会随着测试器件扫描方向的不同而明显不同. 该现象被称为I-V滞回现象. 进一步研究发现I-V曲线还与扫描速度、起始测试的偏压值和光照历史明显相关. 本工作结合不同的器件构造, 就可能造成这种I-V滞回现象的不同原因进行了总结和分析, 并对如何获得可靠的光电转换效率的测试方法进行了评述.

关键词: 钙钛矿, 太阳能电池, 反转结构, I-V测试, 滞回现象

Research into organic-inorganic metal halide perovskite solar cells has swiftly gained momentum since the seminal work initiated by Kojima et al. in 2009, and already has delivered impressive accredited power conversion efficiency of over 17.9% within 5 years. In much previously reported research, the I-V characteristics was found to vary to a great extent with sweeping direction, which is known as I-V hysteresis. Further investigations have identified that the I-V hysteresis is also related to scanning speed, starting voltage and light soaking. We correlate such a phenomenon to different device structures and several possible causes were analyzed herein. A reliable test to obtain valid power conversion efficiency, which is to hold the device under a maximum power voltage is recommended for future research regarding this newly emerged technology.

Key words: perovskite, solar cells, inverted structure, I-V measurement, hysteresis