裁剪型有机光伏小分子的研究与应用

Research and Application of Cutting-out Small Molecules as Organic Photovoltaic Materials

有机太阳能电池的光电转化效率已经突破13%,这主要归因于活性层材料的不断丰富与改进。相比于聚合物,以聚合物为母体的裁剪型分子具有明确的分子量、共轭长度可调、消光系数高、结晶性优良等优势,是一类具有重要发展前景的有机光伏材料。本文简要介绍裁剪型分子在二元本体异质结体系、三元体系、非富勒烯体系中的应用及笔者课题组的相关研究工作,总结了其特点并对其应用前景做了展望。

The power conversion efficiency of organic solar cells has exceeded 13%. Among them, polymers and small organic molecules as active layer materials promote the development. Comparing the parent polymers, the cutting- out molecules are promising organic photovoltaic materials with the advantages of definite molecular weight, adjustable conjugate length, high extinction coefficient, excellent crystallinity and so on. In this paper, we briefly introduce the applications of cutting-out molecules in bulk heterojunction, ternary system, non-fullerene system, and related research works of our group. We also summarize their characteristics, and make a prospect of their applications.