Efficient polymer solar cells based on a low bandgap semi-crystalline DPP polymer-PCBM blends

Feng Liu; Yu Gu; Cheng Wang; Wei Zhao; Dian Chen; Alejandro L Briseno; Thomas P Russell

doi:10.1002/adma.201200902

Efficient polymer solar cells based on a low bandgap semi-crystalline DPP polymer-PCBM blends

Adv Mater. 2012 Aug 2;24(29):3947-51. doi: 10.1002/adma.201200902. Epub 2012 Jun 12.

Authors

Feng Liu¹, Yu Gu, Cheng Wang, Wei Zhao, Dian Chen, Alejandro L Briseno, Thomas P Russell

Affiliation

¹ Department of Polymer Science and Engineering, University of Massachusetts, Amherst, 01003, USA.

PMID: 22689152
DOI: 10.1002/adma.201200902

Abstract

Solar cell performance and morphology characterization of a diketopyrrolopyrrole-based low bandgap polymer is reported. The polymer adopts an H-type aggregation and solvent mixture processing gives a better morphology. The morphology evolution is characterized by combined GIXD and GISAXS experiments and a four step morphology development mechanism is proposed.

Publication types

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

MeSH terms

Crystallization
Fullerenes / chemistry*
Organoselenium Compounds / chemistry
Polymers / chemistry*
Scattering, Small Angle
Solar Energy*
Thiophenes / chemistry
X-Ray Diffraction

Substances

Fullerenes
Organoselenium Compounds
Polymers
Thiophenes
poly(3-hexyl)selenophene