Designing Efficient Non-Fullerene Acceptors by Tailoring Extended Fused-Rings with Electron-Deficient Groups

作者：Lin, Yuze; Zhan, Xiaowei^*

来源：Advanced Energy Materials, 2015, 5(20): 1501063.

DOI：10.1002/aenm.201501063

• fused rings
• n-type semiconductors
• non-fullerene acceptors
• organic solar cells

In the past two years, non-fullerene acceptors including polymers and small molecules have become the focus of many research efforts. Fullerene-free organic solar cells (OSCs) have shown efficiencies of up to 6.8% for solution-processed devices, and even up to 8.4% for vacuum-deposited devices, which have been significantly improved relative to those disclosed 2 years ago (generally <4%). Non-fullerene acceptor materials are a new focus in the OSC field. Tailoring extended fused-rings with electron-deficient groups is an effective strategy for design of acceptors. Here, very recent developments in several systems of fused ring-based electron acceptors, such as halogenated (sub or subna)phthalocyanine, imide-functionalized rylene, and linear fused-rings end capped with electron deficient blocks, are reviewed.

• 出版日期2015-10-21
• 单位北京大学; 首都师范大学