6533b7d9fe1ef96bd126cb02

RESEARCH PRODUCT

New BODIPY derivatives with triarylamine and truxene substituents as donors for organic bulk heterojunction photovoltaic cells

Haijun XuHaijun XuAnupam AgrawalGanesh D. SharmaFangjian CaiYingxin GuoClaude P. GrosYuanyuan Fang

subject

Materials scienceOrganic solar cellRenewable Energy Sustainability and the EnvironmentEnergy conversion efficiencyPhotochemistryTriphenylamineAcceptorPolymer solar cellchemistry.chemical_compoundchemistryMoietyGeneral Materials ScienceBODIPYTernary operation

description

Abstract We have designed two new BODIPY derivatives, denoted as 6a and 6b, substituted with truxene moiety and triphenylamine (TPA) unit groups and have investigated their optical and electrochemical properties. Dyes 6a and 6b were employed as donor along with PC71BM or Y6 as acceptor for the fabrication of binary and ternary organic solar cells. After optimization of the binary and ternary active layers, we have achieved over all power conversion efficiency (PCE) of 11.37 % and 13.32% for 6a:PC71BM:Y6 and 6b:PC71BM:Y6 ternary organic solar cells, respectively, which are higher than the binary organic solar cells based on PC71BM or Y6 acceptor. The higher power conversion efficiency for ternary OSC is possibly attributed to the better exciton generation rate, exciton dissociation and charge collection.

yearjournalcountryeditionlanguage
2021-10-01Solar Energy
https://doi.org/10.1016/j.solener.2021.09.017