Effect of the π-linker on the performance of organic photovoltaic devices based on push–pull D–π–A molecules. (12th June 2018)

• Record Type: Journal Article
• Authors: Lim, Hong Chul; Kim, Jang-Joo; Jang, Jyongsik; Hong, Jong-In
• Is Part Of: New journal of chemistry. Volume 42:Number 14(2018)
• Page Start: 11458
• Page End: 11464
• Publication Date: 2018-06-12
• Subjects: Chemistry -- Periodicals; Chimie -- Périodiques; 540
• DOI: 10.1039/c8nj00915e
• Languages: English
• ISSNs: 1144-0546

Abstract

Abstract : The bulk heterojunction organic photovoltaic (OPV) devices based on3T : PC71 BM (2 wt%, 1 : 1.75 w/w) exhibited a higher power conversion efficiency of 2.58% thanDTT -based OPV devices. Abstract : Two push–pull D–π–A molecules, 3T andDTT as donor materials, were synthesized and characterized for solution-processed bulk heterojunction (BHJ) organic photovoltaic (OPV) devices. The π-linker plays a vital role not only in electrochemical and thermal properties but also affects the thin film morphology of3T andDTT .3T showed the high electrochemical stability with a faster electrode reaction rate. The solution-processed OPV devices based on3T showed higher power conversion efficiencies thanDTT -based devices because of its superior electrochemical properties.