Influence of intermolecular distance on optical property in polydiacetylene crystalline films

T. Kondo, A. Ishii, H. Manabe, H. Munekata

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Optical absorption spectrum of polydiacetylene (PDA) crystalline films shifts toward higher energies as irregularity in molecular ordering is increased. We view this behavior in terms of the reduced overlap of conjugated ir-electron wave function among one-dimensional PDA molecular wires. This point is further discussed by using the Kronig-Penney model, in which the influence of irregularity in molecular ordering is assessed in terms of a change in the intermolecular distance which in turn shifts the fundamental absorption edge.

Original languageEnglish
Pages (from-to)1352-1354
Number of pages3
JournalApplied Physics Letters
Issue number10
Publication statusPublished - 2001 Mar 5


ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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