Organic photovoltaic cells containing discotic liquid crystalline phthalocyanines

Seunghyup Yoo, Benoit Domercq, Carrie L. Donley, Chet Carter, Wei Xia, Britt A. Minch, David F. O'Brien, Neal R. Armstrong, Bernard Kippelen

Research output: Contribution to journalConference article

9 Scopus citations

Abstract

We report on the photovoltaic properties of solar cells containing a new discotic liquid crystalline material (DL-CuPc) based on copper phthalocyanine. In addition to being soluble, these materials can self-organize into highly ordered structures which can lead to good transport properties that can potentially be superior to those of amorphous materials. Increase in short-circuit current density and fill factor was obtained by thermal annealing of spin-coated DL-CuPc layer in bi-layer solar cells based on junction between DL-CuPc and C60. These improvements are explained by change in structure and morphology upon thermal annealing.

Original languageEnglish (US)
Pages (from-to)71-78
Number of pages8
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume5215
DOIs
StatePublished - May 3 2004
EventOrganic Photovoltaics IV - San Diego, CA, United States
Duration: Aug 7 2003Aug 8 2003

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Keywords

  • Discotic liquid crystal
  • Organic photovoltaic cells
  • Phthalocyanine
  • Transport

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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