Even parity states in PPV, polythiophene and polysilanes

Fangyeong Guo, M. Chandross, S. Mazumdar

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Two photon absorptions (TPA) in conjugated polymers with large bond alternation are reinterpreted. TPA to the 2Ag in long chains should be tiny due to cancellation effects, and therefore the observed strong, narrow TPA is to a higher even parity state. We also present the first theoretical evidence for bound biexcitons, and explain recent photoinduced absorption data.

Original languageEnglish
Title of host publicationElectrical, Optical, and Magnetic Properties of Organic Solid State Materials
EditorsAnthony F. Garito, Alex K-Y. Jen, Charles Y-C. Lee, Larry R. Dalton
PublisherPubl by Materials Research Society
Number of pages6
ISBN (Print)1558992278
Publication statusPublished - 1994 Jan 1
EventProceedings of the MRS 1993 Fall Meeting - Boston, MA, USA
Duration: 1993 Nov 291993 Dec 3

Publication series

NameMaterials Research Society Symposium Proceedings
ISSN (Print)0272-9172


OtherProceedings of the MRS 1993 Fall Meeting
CityBoston, MA, USA

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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