Dithiafulvenyl‐Naphthalenediimide‐based Small Molecules as efficient Non‐Fullerene Electron‐Transport Layer for Inverted Perovskite Solar Cells. Issue 11 (22nd August 2018)

• Record Type: Journal Article
• Authors: Shaikh, Dada B.; Said, Ahmed Ali; Bhosale, Rajesh S.; Chen, Wangqiao; Bhosale, Sidhanath V.; Puyad, Avinash L.; Bhosale, Sheshanath V.; Zhang, Qichun
• Is Part Of: Asian journal of organic chemistry. Volume 7:Issue 11(2018)
• Page Start: 2294
• Page End: 2301
• Publication Date: 2018-08-22
• Subjects: Dithiafulvenyl -- naphthalenediimide -- non-fullerene -- ETL -- perovskite; Chemistry, Organic -- Periodicals; Organic compounds -- Synthesis -- Periodicals; 547.005
• DOI: 10.1002/ajoc.201800385
• Languages: English
• ISSNs: 2193-5807

Abstract

Abstract: Novel dithiafulvenyl (DTF)‐naphthalenediimide (NDI) derivativesDS1 andDS2 has been designed, synthesized and characterized. To replace the costly PCBM in inverted perovskite solar cells (PSCs), we here propose these materials.DS1 and DS2 were employed as electron transport layers (ETL) to fabricate inverted PSCs based on CH3 NH3 PbI3‐x Clx . The best power conversion efficiencies (PCEs) of inverted PSCs based onDS1 andDS2 exhibit 9.6% and 11.4%, respectively. The difference in PCE values revealed thatDS2 bearing two DTF moieties on NDI core could enhance the PCE compared toDS1 containing one DTF moiety. Our results suggest that NDI‐based small molecules could be employed as a promising ETL in inverted PSCs to achieve high efficiency. Abstract : Photovoltaic performance : Dithiafulvenyl‐naphthalenediimide derivativesDS1 andDS2 were employed as an electron transport layer (ETL) to fabricate inverted PSCs based on CH3 NH3 PbI3‐x Clx . The best power conversion efficiencies (PCEs) of inverted PSCs based onDS1 andDS2 exhibits 9.6% and 11.4%, respectively. The difference in PCE values revealed thatDS2 bearing two DTF moieties on NDI core enhanced the PCE compared toDS1 containing one DTF moiety.