STUDY ON DECAY OF ESR SIGNALS AND MECHANISMOF SUPERSENSITIZATION

doi:10.7517/j.issn.1674-0475.1994.04.364

Imaging Science and Photochemistry ›› 1994, Vol. 12 ›› Issue (4): 364-368.DOI: 10.7517/j.issn.1674-0475.1994.04.364

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STUDY ON DECAY OF ESR SIGNALS AND MECHANISMOF SUPERSENSITIZATION

ZHANG JIN-LONG, ZHU ZHENG-HUA

Research Institute of Fine Chemicals, East China University of Science and Teshnologg, Shanghai 200237, P. R. China

Received:1993-12-17 Revised:1994-04-09 Online:1994-11-20 Published:1994-11-20

Abstract

Abstract: Used Eletron Spin Resonance technic, ESR signals of dyes’positive hole were trapped.The decay of ESR signal of positive holes trapped by cyanine dyes about sensitive systemand supersensitive system were studied, Their decay were the second-order reaction.The rate constants of the decay are k₂ = 3.269 × 10^-4s^-1, k₂= 5.589 × 10^-5s^-1.So, two kindsof positive holes produced by sensitive dyes and supersensitive dyes were distinguished,Gilman’s mechanism of trapping positive hole was confirmed further.

Key words: ESR, positive hole, decay kinetics, supersensitive mechanism

ZHANG JIN-LONG, ZHU ZHENG-HUA. STUDY ON DECAY OF ESR SIGNALS AND MECHANISMOF SUPERSENSITIZATION[J]. Imaging Science and Photochemistry, 1994, 12(4): 364-368.

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STUDY ON DECAY OF ESR SIGNALS AND MECHANISMOF SUPERSENSITIZATION

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