Molecular design and morphology control towards efficient polymer solar cells processed using non-aromatic and non-chlorinated solvents

Yu Chen; Shaoqing Zhang; Yue Wu; Jianhui Hou

doi:10.1002/adma.201304825

Molecular design and morphology control towards efficient polymer solar cells processed using non-aromatic and non-chlorinated solvents

Adv Mater. 2014 May;26(17):2744-9, 2618. doi: 10.1002/adma.201304825. Epub 2014 Feb 4.

Authors

Yu Chen¹, Shaoqing Zhang, Yue Wu, Jianhui Hou

Affiliation

¹ State Key Laboratory of Polymer Physics and Chemistry, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China; Graduate University of Chinese Academy of Sciences, Beijing, 100049, P. R. China.

PMID: 24496762
DOI: 10.1002/adma.201304825

Abstract

Using an environmentally friendly solvent, N-methyl-2-pyrrolidone, a polymer with benzodithiophene (BDT) and thieno[3,4-b]thiophene (TT) monomers and triethylene glycol monoether (TEG) side chains, PBDTTT-TEG, can be processed into an active layer for a polymer solar cell (PSC). Combined with phenyl-C 71-butyric acid methyl ester (PC 71 BM) as the acceptor, the resulting PSC has a power conversion efficiency (PCE) of 5.23%. This is the first example of an efficient polymer solar cell fabricated from a non-aromatic and nonchlorinated solvent.

Keywords: conjugated polymers; morphology; polymer solar cells; processing solvents.

Publication types

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