Long-range jump versus stepwise hops: Magnetic field effects on the charge-transfer fluorescence from photoconductive polymer films

Fuyuki Ito, Tadaaki Ikoma, Kimio Akiyama, Yasuhiro Kobori, Shozo Tero-Kubota

Research output: Contribution to journalArticlepeer-review

31 Citations (Scopus)

Abstract

Magnetic field effects on the charge-transfer (CT) fluorescence of a 1,2,4,5-tetracyanobenzene-doped poly(N-vinylcarbazole) thin film were investigated to clarify the primary process in photoconductive organic amorphous solid. The CT fluorescence increased with increasing magnetic field until 10 mT, and then it showed the dip around 40-50 mT. The hyperfine coupling mechanism observed in the low field and the level-crossing mechanism observed around 46 mT clearly indicate that the spin-conservative stepwise hole hops take place in the films. The boundary distance determined from the simulation based on the stepwise hopping model almost agreed with the interionic separation estimated within the Onsager analysis.

Original languageEnglish
Pages (from-to)4722-4723
Number of pages2
JournalJournal of the American Chemical Society
Volume125
Issue number16
DOIs
Publication statusPublished - 2003 Apr 23

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

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