Electric-field dependent redox electron transfer in an organic solid: Study of carrier photogeneration efficiency

Minoru Umeda, Matsuhiko Nishizawa, Takashi Itoh, J. Robert Selman, Isamu Uchida

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

We have investigated the electric field dependence of the carrier photogeneration efficiency in an organic photoconductor with high sensitivity. The rate-determining step to generate photocarriers was considered to be the electron transfer between the neighboring two-redox molecules, which is influenced by the electric field. The overall carrier photogeneration efficiency was expressed by employing the electron-transfer velocity at the rate-determining step as a function of electric-field-dependent activation energy. This model successfully fits the experimental results for an organic photoconductor over a wide range of field strengths.

Original languageEnglish
Pages (from-to)219-224
Number of pages6
JournalChemical Physics Letters
Volume326
Issue number3-4
DOIs
Publication statusPublished - 2000 Aug 18

ASJC Scopus subject areas

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

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