Excitons in poly(para-phenylenevinylene)

M. Chandross, S. Mazumdar, S. Jeglinski, X. Wei, Z. V. Vardeny, E. W. Kwock, T. M. Miller

Research output: Contribution to journalArticle

256 Scopus citations

Abstract

We show that one-electron band theory fails to describe optical absorption in PPV and the absorption spectrum can be described only within a Coulomb-correlated model. The lowest optical state is an exciton, whose binding energy is estimated theoretically to be 0.90±0.15 eV. Measurements of the photoconductivity quantum efficiency in poly[2-methoxy,5-(2'-ethyl-hexyloxy)-1, 4 phenylenevinylene] reveal a binding energy in good agreement with the theoretical value.

Original languageEnglish (US)
Pages (from-to)14702-14705
Number of pages4
JournalPhysical Review B
Volume50
Issue number19
DOIs
StatePublished - Jan 1 1994

ASJC Scopus subject areas

  • Condensed Matter Physics

Fingerprint Dive into the research topics of 'Excitons in poly(para-phenylenevinylene)'. Together they form a unique fingerprint.

  • Cite this

    Chandross, M., Mazumdar, S., Jeglinski, S., Wei, X., Vardeny, Z. V., Kwock, E. W., & Miller, T. M. (1994). Excitons in poly(para-phenylenevinylene). Physical Review B, 50(19), 14702-14705. https://doi.org/10.1103/PhysRevB.50.14702