物理化学学报2018，Vol.34Issue(4)：344-347,4.DOI:10.3866/PKU.WHXB201709112
萘酰亚胺-卟啉星型电子受体分子的构筑及其在非富勒烯太阳能电池中的应用
Star-Shaped Electron Acceptor based on Naphthalenediimide-Porphyrin for Non-Fullerene Organic Solar Cells
摘要
Abstract
Non-fullerene organic solar cells are of broad and current interest in the field of organic solar cells,and show promising application in high performance solar cells.When designing conjugated molecules as non-fullerene materials,several parameters,such as absorption,energy levels,charge transport,and crystallinity should be considered.Among them,absorption spectra are an important parameter that determine the efficiency of sun-light harvesting.In this work,we explore a new near-infrared electron acceptor naphthalenediimide-porphyrin (NDI-Por) by using electron-donating porphyrin as the core,and four NDI as end groups with ethynyl as linkers attached to the meso-position of porphyrin.This star-shaped molecule exhibits absorption spectra up to 900 nm.NDI-Por was incorporated into non-fullerene solar cells as an electron acceptor,and together with a wide-band gap polymer donor,an initial power conversion efficiency of 1.80％ could be achieved.In particular,the solar cells exhibit a broad photo-response from 300 to 900 nm.Our results demonstrate that it is an efficient strategy to incorporate porphyrin into conjugated molecules to realize non-fullerene materials with near-infrared absorption spectra.关键词
非富勒烯太阳能电池/卟啉/萘酰亚胺/电子受体/近红外Key words
Non-fullerene organic solar cells/Porphyrin/Naphthalenediimide/Electron acceptor/Near-infrared分类
化学化工引用本文复制引用
周士超,冯贵涛,夏冬冬,李诚,武永刚,李韦伟..萘酰亚胺-卟啉星型电子受体分子的构筑及其在非富勒烯太阳能电池中的应用[J].物理化学学报,2018,34(4):344-347,4.基金项目
The project was supported by the National Natural Science Foundation of China (51773207,21574138,51603209,91633301,21474026) and the Strategic Priority Research Program (XDB12030200) of the Chinese Academy of Sciences.国家自然科学基金(51773207,21574138,51603209,91633301,21474026),中国科学院B类战略性先导科技专项(XDB12030200)资助项目 （51773207,21574138,51603209,91633301,21474026）
