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 articlepeer-review

11 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 - 2004
Externally publishedYes
EventOrganic Photovoltaics IV - San Diego, CA, United States
Duration: Aug 7 2003Aug 8 2003

Keywords

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

ASJC Scopus subject areas

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

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