Fully visible-light-harvesting conjugated polymers with pendant donor-π-acceptor chromophores for photovoltaic applications

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Chunhui Duan
  • Xiaowen Hu
  • Kung-Shih Chen
  • Wei Li
  • Fei Huang
  • Yong Cao

Detail(s)

Original languageEnglish
Pages (from-to)50-58
Journal / PublicationSolar Energy Materials and Solar Cells
Volume97
Online published19 Sep 2011
Publication statusPublished - Feb 2012
Externally publishedYes

Abstract

Toward fully visible light absorbing conjugated polymers, two narrow-band-gap conjugated polymers PFMIX and PCzMIX were synthesized by attaching two different acceptor groups malononitrile and 2-(1,2-dihydro-1- oxoinden-3-ylidene)malononitrile (DCNIO) onto the same polymer main chain via Knoevenagel condensation from the corresponding aldehyde-functionalized precursor polymers. For comparison, the polymers with DCNIO acceptor, PFDCNIO and PCzDCNIO were also developed. The optical properties, energy levels, hole transporting abilities and photovoltaic properties of the resulting polymers were investigated in detail. The absorption spectra of PFMIX and PCzMIX were greatly extended by simultaneously using acceptors with different electron-withdrawing ability. The resulting polymers exhibited promising photovoltaic properties, and the maximum of power conversion efficiency of 2.83% could be achieved for the device based on PFMIX when blended with (6,6)-phenyl-C71-butyric acid methyl ester. © 2011 Elsevier B.V.

Research Area(s)

  • Bulk-heterojunction solar cell, Chromophores pended polymer, Conjugated polymer, Full visible light absorption, Narrow-band-gap polymer

Citation Format(s)

Fully visible-light-harvesting conjugated polymers with pendant donor-π-acceptor chromophores for photovoltaic applications. / Duan, Chunhui; Hu, Xiaowen; Chen, Kung-Shih; Yip, Hin-Lap; Li, Wei; Huang, Fei; Jen, Alex K.-Y.; Cao, Yong.

In: Solar Energy Materials and Solar Cells, Vol. 97, 02.2012, p. 50-58.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review