Photorefractivity in liquid crystalline composite materials

Gary P. Wiederrecht, Michael R. Wasielewski

Research output: Contribution to journalConference articlepeer-review


We report recent improvements in the photorefractive performance of liquid crystalline thin film composites containing electron donor and acceptor molecules. The improvements primarily result from optimization of the exothermicity of the intermolecular charge transfer reaction and improvement of the diffusion characteristics of the photogenerated ions. Intramolecular charge transfer dopants produce greater photorefractivity and a 10-fold decrease in the concentration of absorbing chromophores. The mechanism for the generation of mobile ions is discussed.

Original languageEnglish (US)
Pages (from-to)227-235
Number of pages9
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - 1997
EventXerographic Photoreceptors and Organic Photorefractive Materials II - San Diego, CA, United States
Duration: Jul 28 1997Jul 28 1997


  • Non-linear optics
  • Photoconductivity
  • Photorefractive materials
  • Semiconductor films

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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