New M- and V-shaped perylene diimide small molecules for high-performance nonfullerene polymer solar cells

Gi Eun Park; Hyung Jong Kim; Suna Choi; Dae Hee Lee; Mohammad Afsar Uddin; Han Young Woo; Min Ju Cho; Dong Hoon Choi

doi:10.1039/c6cc04229e

New M- and V-shaped perylene diimide small molecules for high-performance nonfullerene polymer solar cells

Chem Commun (Camb). 2016 Jul 7;52(57):8873-6. doi: 10.1039/c6cc04229e.

Authors

Gi Eun Park¹, Hyung Jong Kim¹, Suna Choi¹, Dae Hee Lee¹, Mohammad Afsar Uddin², Han Young Woo¹, Min Ju Cho¹, Dong Hoon Choi¹

Affiliations

¹ Department of Chemistry, Research Institute for Natural Sciences, Korea University, 5 Anam-dong, Sungbuk-gu, Seoul 136-701, Republic of Korea. [email protected] [email protected].
² Department of Nanofusion Engineering, Department of Cogno-Mechatronics Engineering, Pusan National University, Miryang 627-706, Korea.

PMID: 27351371
DOI: 10.1039/c6cc04229e

Abstract

New M- and V-shaped perylene diimide (PDI)-based small molecules using a non-conjugated 1,1-diphenylcyclohexane linker (CP-M and CP-V, respectively) were designed and synthesized as new n-type acceptors for nonfullerene-based polymer solar cells. The blended film with poly[(2,5-bis(2-hexyldecyloxy)phenylene)-alt-(5,6-difluoro-4,7-di(thiophen-2-yl)benzo[c][1,2,5]thiadiazole)] (PPDT2FBT) and CP-V displayed a higher power conversion efficiency of 5.28% due to higher short circuit current and fill factor values.