A simple small molecule as an acceptor for fullerene-free organic solar cells with efficiency near 8%. Issue 27 (23rd June 2016)

• Record Type: Journal Article
• Authors: Li, Miaomiao; Liu, Yongtao; Ni, Wang; Liu, Feng; Feng, Huanran; Zhang, Yamin; Liu, Tingting; Zhang, Hongtao; Wan, Xiangjian; Kan, Bin; Zhang, Qian; Russell, Thomas P.; Chen, Yongsheng
• Is Part Of: Journal of materials chemistry. Volume 4:Issue 27(2016)
• Page Start: 10409
• Page End: 10413
• Publication Date: 2016-06-23
• Subjects: Materials -- Research -- Periodicals; Chemistry, Analytic -- Periodicals; Environmental sciences -- Research -- Periodicals; 543.0284
• DOI: 10.1039/c6ta04358e
• Languages: English
• ISSNs: 2050-7488

Abstract

Abstract : A small molecule named DICTF was synthesized and an organic solar cell based on PTB7-Th:DICTF exhibited a high PCE of 7.93%. Abstract : A simple small molecule acceptor named DICTF, with fluorene as the central block and 2-(2, 3-dihydro-3-oxo-1 H -inden-1-ylidene)propanedinitrile as the end-capping groups, has been designed for fullerene-free organic solar cells. The new molecule was synthesized from widely available and inexpensive commercial materials in only three steps with a high overall yield of ∼60%. Fullerene-free organic solar cells with DICTF as the acceptor material provide a high PCE of 7.93%.