Evidence of photocarrier generation via the singlet and triplet states in a poly(N-vinylcarbazole) film

Tadaaki Ikoma, Fuyuki Ito, Toshinari Ogiwara, Kimio Akiyama, Shozo Tero-Kubota

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

A significant wavelength dependence of the excitation light was observed in the magnetic field effects (MFE) on the photocarrier generation of a benzene- 1,2,4,5-tetracarbonitrile-doped poly(N-vinylcarbazole) film. The excitation of the carbazole induces positive MFEs, indicating an enhancement of the photoconductivity originating from the charge separation through the triplet exciton. In contrast, a singlet spin state governs the photocarrier generation in the case of the charge transfer band excitation, because negative MFEs are induced.

Original languageEnglish
Pages (from-to)1424-1425
Number of pages2
JournalChemistry Letters
Volume34
Issue number10
DOIs
Publication statusPublished - 2005 Oct 5

ASJC Scopus subject areas

  • Chemistry(all)

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