Even parity states in PPV, polythiophene and polysilanes

F. Guo, M. Chandross, S. Mazumdar

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

Abstract

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 (US)
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
Pages787-792
Number of pages6
ISBN (Print)1558992278
StatePublished - Jan 1 1994
EventProceedings of the MRS 1993 Fall Meeting - Boston, MA, USA
Duration: Nov 29 1993Dec 3 1993

Publication series

NameMaterials Research Society Symposium Proceedings
Volume328
ISSN (Print)0272-9172

Other

OtherProceedings of the MRS 1993 Fall Meeting
CityBoston, MA, USA
Period11/29/9312/3/93

ASJC Scopus subject areas

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

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  • Cite this

    Guo, F., Chandross, M., & Mazumdar, S. (1994). Even parity states in PPV, polythiophene and polysilanes. In A. F. Garito, A. K-Y. Jen, C. Y-C. Lee, & L. R. Dalton (Eds.), Electrical, Optical, and Magnetic Properties of Organic Solid State Materials (pp. 787-792). (Materials Research Society Symposium Proceedings; Vol. 328). Publ by Materials Research Society.