State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, People's Republic of China.
School of Information Science and Technology, Shanghai Technology University, Shanghai, 201210, China.
ACS Appl Mater Interfaces. 2020 Nov 4;12(44):49297-49322. doi: 10.1021/acsami.0c13576. Epub 2020 Oct 22.
Organic-inorganic hybrid perovskite solar cells (PSCs) has achieved the power conversion efficiency (PCE) of 25.2% in the last 10 years, and the PCE of inverted PSCs has reached >22%. The rapid enhancement has partly benefited from the employment of suitable hole transport layers. Especially, poly(3,4-ethenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) is one of the most widely used polymer hole transport materials in inverted PSCs, because of its high optical transparency in the visible region and low-temperature processing condition. However, the PCE and stability of PSCs based on pristine PEDOT:PSS are far from satisfactory, which are ascribed to low fitness between PEDOT:PSS and perovskite materials, in terms of work function, conductivity, film growth, and hydrophobicity. This paper summaries recent progress regarding to modifying/remedy the drawbacks of PEDOT:PSS to improve the PCE and stability. The systematically understanding of the mechanism of modified PEDOT:PSS and various characteristic methods are summarized here. This Review has the potential to guide the development of PSCs based on commercial PEDOT:PSS.
有机-无机杂化钙钛矿太阳能电池（PSCs）在过去 10 年中实现了 25.2%的功率转换效率（PCE），倒置 PSCs 的 PCE 已达到>22%。这种快速的提高部分得益于合适的空穴传输层的应用。特别是，聚（3,4-亚乙二氧基噻吩）：聚（苯乙烯磺酸盐）（PEDOT:PSS）是倒置 PSCs 中使用最广泛的聚合物空穴传输材料之一，因为它在可见光区域具有高光学透明度和低温处理条件。然而，基于原始 PEDOT:PSS 的 PSCs 的 PCE 和稳定性远不能令人满意，这归因于 PEDOT:PSS 与钙钛矿材料之间的功函数、电导率、薄膜生长和疏水性等方面的适配性差。本文总结了近年来关于修饰/补救 PEDOT:PSS 的缺点以提高 PCE 和稳定性的研究进展。本文系统地总结了改性 PEDOT:PSS 的机理和各种特性方法。本综述有可能指导基于商业 PEDOT:PSS 的 PSCs 的发展。
