A non-fullerene small molecule as efficient electron acceptor in organic bulk heterojunction solar cells

Yan Zhou; Lin Ding; Ke Shi; Ya-Zhong Dai; Na Ai; Jian Wang; Jian Pei

doi:10.1002/adma.201103927

A non-fullerene small molecule as efficient electron acceptor in organic bulk heterojunction solar cells

Adv Mater. 2012 Feb 14;24(7):957-61. doi: 10.1002/adma.201103927. Epub 2012 Jan 17.

Authors

Yan Zhou¹, Lin Ding, Ke Shi, Ya-Zhong Dai, Na Ai, Jian Wang, Jian Pei

Affiliation

¹ Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing, China.

PMID: 22249903
DOI: 10.1002/adma.201103927

Abstract

A novel n-type small molecule FFI-1 was synthesized as the electron acceptor to replace PCBM in solution-processed organic BHJ solar cells. Its LUMO level (around -3.5 eV) both matches the work function of the cathode and increases V(OC) of the devices, making it a promising acceptor candidate. With P3HT: FFI-1 (1:2 w/w) as active layer and LiF/Al as the cathode, the best power conversion efficiency (PCE) reaches 1.86%.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Electrons
Fluorenes / chemical synthesis
Fluorenes / chemistry*
Fullerenes / chemistry
Imides / chemical synthesis
Imides / chemistry
Microscopy, Atomic Force
Phthalimides / chemical synthesis
Phthalimides / chemistry*
Solar Energy*

Substances

(6,6)-phenyl C61-butyric acid methyl ester
Fluorenes
Fullerenes
Imides
Phthalimides