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化学进展 2019, Vol. 31 Issue (5): 714-722 DOI: 10.7536/PC180929 前一篇   后一篇

• •

钙钛矿太阳电池电子传输层与光吸收层的界面工程

单雪燕1,2, 王时茂1,3, 孟钢1,3, 方晓东1,2,3,**()   

  1. 1. 中国科学院安徽光学精密机械研究所 光子器件与材料安徽省重点实验室 合肥 230031
    2. 中国科学技术大学 合肥 230026
    3. 中国科学院光伏与节能材料重点实验室 合肥 230031
  • 收稿日期:2018-09-25 出版日期:2019-05-15 发布日期:2019-03-21
  • 通讯作者: 方晓东
  • 基金资助:
    国家自然科学基金项目(11674324); 国家自然科学基金项目(11604339); 中国科学院“百人计划”
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Interface Engineering of Electron Transport Layer/Light Absorption Layer of Perovskite Solar Cells

Xueyan Shan1,2, Shimao Wang1,3, Gang Meng1,3, Xiaodong Fang1,2,3,**()   

  1. 1. Anhui Provincial Key Laboratory of Photonic Devices and Materials, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China
    2. University of Science and Technology of China, Hefei 230026, China
    3. Key Laboratory of Photovoltaic and Energy Conservation Materials, Chinese Academy of Sciences, Hefei 230031, China
  • Received:2018-09-25 Online:2019-05-15 Published:2019-03-21
  • Contact: Xiaodong Fang
  • About author:
    ** E-mail:
  • Supported by:
    National Natural Science Foundation of China(11674324); National Natural Science Foundation of China(11604339); “100 Talents Project” of Chinese Academy of Sciences

钙钛矿太阳电池(PSCs)自2009年出现至今经历了光伏领域前所未有的快速发展,目前经认证的最高光电转换效率已超过23%,极具应用前景。界面工程是提升PSCs性能的有效途径之一,本文回顾了PSCs中电子传输层和钙钛矿光吸收层间界面工程的主要研究工作,根据作用效果将相关研究按照改善钙钛矿光吸收层质量、提高电子传输层与钙钛矿层间的能级匹配度和提升电池稳定性等三类进行了梳理和总结,并对电子传输层和钙钛矿光吸收层间界面工程的前景进行了展望。

关键词： 钙钛矿太阳电池, 界面工程, 能级匹配, 稳定性

Perovskite solar cells (PSCs) has been developing rapidly at an unprecedented speed in the field of photovoltaics since 2009 and its certified record power conversion efficiency has exceeded 23%. Interface engineering is one of the most effective approaches for improving the performance of PSCs. This paper reviews the main progress in the interface engineering of electron transport layer/light absorption layer of PSCs. The related investigations have been classified into three categories, improving the quality of perovskite film, improving the energy level matching between the electron transport layer and the perovskite layer, and improving the stability of the solar cells, according to their effects. Finally, the prospect of improving the performance of PSCs through the interface engineering is prospected.

Key words: perovskite solar cells(PSCs), interface engineering, energy level alignment, stability
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图1 Pb(Ac)2·3H2O溶液修饰前后钙钛矿薄膜的SEM图[21]
Fig. 1 Top view SEM images of the perovskite thin films modified with and without Pb(Ac)2·3H2O respectively[21]. Copyright 2016, RSC
图2 3-氨基丙酸修饰ZnO/CH3NH3PbI3界面作用示意图[23]
Fig. 2 A schematic diagram of the effect of 3-aminopropanioc acid on the modification of ZnO/CH3NH3PbI3 interface[23]. Copyright 2015, ACS
图3 TiCl4和UV(O3)处理的TiO2表面的接触角变化[25]
Fig. 3 Contact angle measurements of water on TiO2 surfaces without, with TiCl4 treatment and UV(O3) treatment[25]. Copyright 2015, CSJ
图4 (a) PCBM浓度分别为0、10、20、30和40 mg·mL-1 时钙钛矿的XRD图谱;(b)不同浓度的PCBM修饰后钙钛矿(110)衍射峰的FWHM[30]
Fig. 4 (a) XRD patterns of perovskite layers without and with different PCBM intermediate layers(0, 10, 20, 30 and 40 mg·mL-1);(b) the FWHM of the(110) diffraction peaks[30]. Copyright 2017, RSC
图5 ITO、ZnO、ZnO/PCBM和CH3NH3PbI3的能级结构[38]
Fig. 5 Energy-level diagrams of the ITO, ZnO, ZnO/PCBM, and CH3NH3PbI3[38]. Copyright 2014, RSC
图6 FTO/ETLs/CH3NH3PbI3/spiro-OMeTAD/Au的能级图[41]
Fig. 6 Schematic energy diagram of FTO/ETLs/CH3NH3PbI3/spiro-OMeTAD/Au device[41]. Copyright 2016, RSC
图7 FTO/TiO2(离子液体)/CH3NH3PbICl2/PTAA/Au PSCs的能级图[45]
Fig. 7 The energy level diagram of the FTO/TiO2(ionic liquid)/CH3NH3PbICl2/PTAA/Au PSCs[45]. Copyright 2016, RSC
图8 a)PSCs的结构示意图; b) TiO2/ZnS/FASnI3/PTAA/Au能级图和FASnI3的晶体结构示意图[49]
Fig. 8 a) Schematic diagram of PSCs structure; b)The energy level diagram of the TiO2/ZnS/FASnI3/PTAA/Au and crystal structure of the FASn3[49], Copyright 2016, ACS
图9 (a)介孔TiO2表面有无MgO修饰的XPS全谱;(b)介孔TiO2表面有无MgO修饰的O 1s峰谱图[57]
Fig. 9 (a) An overview;(b) the corresponding high-resolution XPS O 1s spectra of mp-TiO2 with and without MgO coating[57]. Copyright 2015, Wiley
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