Systematic characterization of excited states in π -conjugated polymers

M. Chandross, Y. Shimoi, S. Mazumdar

Research output: Contribution to journalArticle

17 Scopus citations

Abstract

Exact finite chain calculations within a diagrammatic exciton basis give pictorial descriptions of all excited states of π-conjugated polymers. In linear chain polymers the 1Bu is an exciton, and the fundamental two-photon states can be broadly classified into triplet-triplet, charge-transfer and singlet-singlet excitations. The mAg, a two-photon state that plays a strong role in nonlinear optics, is a correlated charge-transfer state. The singlet-singlet states occur higher in energy and split into bound biexcitons and a continuum of free two-exciton states.

Original languageEnglish (US)
Pages (from-to)85-90
Number of pages6
JournalChemical Physics Letters
Volume280
Issue number1-2
DOIs
StatePublished - Nov 28 1997

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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