The investigation of donor-acceptor compatibility in bulk-heterojunction polymer systems

Jen Hsien Huang, Yu Sheng Hsiao, Eric Richard, Chun Chao Chen, Peilin Chen, Gang Li, Chih Wei Chu, Yang Yang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

42 Citations (Scopus)

Abstract

The fullerene derivative, indene-C60bisadduct (ICBA), has been introduced into poly(3-hexylthiophene) (P3HT) to improve the efficiency of P3HT-based devices. However, we found that ICBA is not suitable for most low bandgap polymers. In this study, we have correlated the cell performance with surface energy between the donor and acceptor materials in a bulk-heterojunction cell. These results show that higher photocurrent can be attributed to the morphology improvement induced by larger surface energy difference (Δγ) between the low bandgap polymer and fullerene. These results also suggest that synthetic strategies which adjust the Δγ between donor and acceptor should be considered.
Original languageEnglish
Article number043304
JournalApplied Physics Letters
Volume103
Issue number4
DOIs
Publication statusPublished - 22 Jul 2013
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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