简单的溶剂处理使聚（3,4-乙撑二氧噻吩）：聚苯乙烯磺酸（PEDOT:PSS）在高效二元有机太阳能电池方面的性能得到改善。
Simple Solvent Treatment Enabled Improved PEDOT:PSS Performance toward Highly Efficient Binary Organic Solar Cells.
作者信息
Shi Shasha, Hou Yiwen, Yang Tao, Huang Ciyuan, Yao Shangfei, Zhao Chenfu, Liu Yudie, Zhang Ziyang, Liu Tao, Zou Bingsuo
机构信息
Julong College, Shenzhen Technology University, Shenzhen 518118, China.
Guangxi Key Lab of Processing for Nonferrous Metals and Featured Materials and Key Lab of New Processing Technology for Nonferrous Metals and Materials, Ministry of Education; School of Resources, Environments and Materials, Guangxi University, Nanning 530004, China.
出版信息
ACS Omega. 2022 Nov 3;7(45):41789-41795. doi: 10.1021/acsomega.2c06181. eCollection 2022 Nov 15.
PSS is the most popular hole-transporting material (HTM) for conventional structural organic solar cell (OSC) devices, whose performance is of great importance for realizing high power conversion efficiency (PCE). However, its performance in OSC devices has been continuously challenged by various replacing materials and different doping strategies, for better conductivity, work function, and surface property. Here, we report a simple dopant-free method to tune the phase separation of the PEDOT:PSS layer, which results in better charge transport and extraction in devices. Specifically, high PCEs for binary polymer-small-molecule (>18%) and polymer-polymer (>17%) systems are simultaneously achieved. This work engineeringly provides encouraging improvement for OSC device performance with easy modification and scientifically offers insights into tuning the property of the PEDOT:PSS layer.
聚（3,4-乙撑二氧噻吩）：聚苯乙烯磺酸盐（PSS）是传统结构有机太阳能电池（OSC）器件中最常用的空穴传输材料（HTM），其性能对于实现高功率转换效率（PCE）至关重要。然而，为了获得更好的导电性、功函数和表面性质，其在OSC器件中的性能一直受到各种替代材料和不同掺杂策略的持续挑战。在此，我们报道了一种简单的无掺杂方法来调节聚（3,4-乙撑二氧噻吩）：聚苯乙烯磺酸盐（PEDOT:PSS）层的相分离，这导致器件中更好的电荷传输和提取。具体而言，二元聚合物-小分子（>18%）和聚合物-聚合物（>17%）体系同时实现了高功率转换效率。这项工作通过简单的改性为OSC器件性能提供了令人鼓舞的改进，并从科学上为调节PEDOT:PSS层的性质提供了见解。
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