Influence of thermal annealing-induced molecular aggregation on film properties and photovoltaic performance of bulk heterojunction solar cells based on a squaraine dye

• Published in: Frontiers of materials science Vol. 12; no. 2; pp. 139 - 146
• Main Authors: ZHANG, Pengpeng, LING, Zhitian, CHEN, Guo, WEI, Bin
• Format: Journal Article
• Language: English
• Published: Beijing Higher Education Press 01.06.2018; Springer Nature B.V
• Subjects: Agglomeration; Annealing; Butyric acid; Chemistry and Materials Science; Dyes; Electrical properties; film properties; Heterojunctions; Materials Science; molecular aggregation; Molecular chains; Morphology; Optical properties; Organic chemistry; organic solar cells; Photovoltaic cells; power conversion efficiency; Radioactivity; Research Article; Solar cells; squaraine dye; organic solar cells; power conversion efficiency; squaraine dye; molecular aggregation; film properties

Squaraine (SQ) dyes have been considered as efficient photoactive materials for organic solar cells. In this work, we purposely controlled the molecular aggregation of an SQ dye, 2,4-bis[4-(N,N-dibutylamino)-2-dihydroxyphenyl] SQ (DBSQ-(OH) 2) in the DBSQ(OH) 2:[6,6]-phenyl-C 61-butyric acid methyl...