Cd基化合物纳米晶-有机聚合物杂化太阳能电池研究进展

Development of Cd-Based Compound Nanocrystal-Organic Polymer Hybrid Solar Cells

有机-无机杂化太阳能电池因其结合了有机材料和无机材料各自的优势而引起了人们的广泛关注和研究.Cd基化合物纳米晶因其具有制备方法简单、尺寸及形貌可控、载流子迁移率高和稳定性好等优点而成为最早被研究的一类无机受体.本文介绍了有机-无机杂化太阳能电池的结构及原理,分析了影响有机-无机杂化太阳能电池效率的三个主要因素,分别是开路电压(Voc)、短路电流(Jsc)和填充因子(FF).从改善Cd基化合物纳米晶的合成方法,增加Cd基化合物纳米晶和有机聚合物间的界面接触,以及优化Cd基化合物纳米晶和有机聚合物所用溶剂和所占比例等方面阐述了近年来Cd基化合物纳米晶-有机聚合物杂化太阳能电池的研究进展.并展望了Cd基化合物纳米晶-有机聚合物杂化太阳能电池的发展方向.

Organic-inorganic hybrid solar cells, which combine the advantages of conjugated polymers and inorganic nanocrystals, have attracted a lot of attention and been extensively studied in recent years. Cd-based compound nanocrystals, which were the first inorganic acceptor materials used in hybrid solar cells, have many advantages, such as easy synthesis, controllability of the size and morphology, high charge-carrier mobility, and high stability. This article reviews the structure and working mechanism of organic-inorganic hybrid solar cells,and analyzes the three main factors that have important influences on the power conversion efficiency（PCE）of hybrid solar cells： the open circuit voltage（Voc）, short circuit current density（Jsc）, and fill factor（FF）. We also summarize the recent progress of Cd-based compound nanocrystal-organic polymer hybrid solar cells from the viewpoints of improvement of the synthetic methods of Cd-based compound nanocrystals, modification of the interfacial contact of Cd-based compound nanocrystals and organic polymer, optimization of the solvent, and the proportions of nanocrystals and organic polymer. Finally, we suggest some strategies to increase solar cell performance and suggest the future research direction of Cd-based compound nanocrystal organic-inorganic hybrid solar cells.