Realizing high-performance ternary organic solar cell with thick active layer via incorporating a liquid crystalline small molecule as a third component

• 来源期刊: 中国科学:化学（英文版）
• 年，卷（期）: 2017,（4）
• 页码范围: 435-436
• 页数: 2页
• 语种: 英文
• DOI: 10.1007/s11426-017-9015-8

摘要

In the past two decades,organic solar cells (OSCs) have attracted significant attention owing to their merits of achieving light-weight,flexible,low-cost devices [1,2].Ternary OSC as an efficient way to improve the power conversion efficiencies (PCEs) of OSCs has inspired great interest from researchers to investigate temary OSCs and result in many efficient devices.Ternary OSCs allow collecting high-and low-energy photons by separated semiconductors in a single active layer to minimize the thermalization loss and broaden absorption range to improve the performance of OSCs.However,most reported temary OSCs only have active layer of about 100 nm in thickness,which limit the light harvesting capability of ternary OSCs since it is not sufficient to completely absorb incident light in this absorption range.Furthermore,it will also cause problems for future roll-to-roll mass production that requires active layer materials to have thickness-insensitive performance in devices [2].