有机太阳能电池阴极界面层概述

体相异质结聚合物太阳能电池因具有质轻、柔韧性好、便于大面积印刷等优点引起了越来越多的关注。近年来,聚合物太阳能电池取得了较大的进步。然而,聚合物太阳能电池要实现商业化大面积制备还需要解决一些科学问题,如电荷的分离、传输和收集效率低等。良好的界面接触对提高器件性能至关重要。本文综述了聚合物太阳能电池界面层的作用及分类,包括无机类、富勒烯类、水/醇溶性中性共轭聚合物、水/醇溶性离子型共轭聚合物电解质、超支化小分子和苝酰亚胺衍生物。

A Review on Cathode Interfacial Layers of Organic Solar Cells

Bulk heterojunction polymer solar cells (PSCs) have attracted enormous attention due to their various advantages of low-cost, favorable flexibility and feasibility for large-scales roll-to-roll fabrication. Considerable progress has been made in researches of PSCs in recent years. Nevertheless, several scientific issues and challenges of PSCs like poor charge carrier separation, transfer and collection, have been hindering their application in large-scale commercial production. Stable and effective interfacial contact plays a critical role in enhancing the performance of PSCs. This article summarizes the functions and classifications of the interfacial layer in polymer solar cells, including inorganic interlayers, fullerene derivatives, water/alcohol-soluble neutral conjugated polymers, water/alcohol-soluble ionic conjugated polymers electrolyte, hyperbranched small molecule electrolytes and perylene diimide derivatives.