ESR信号的衰减与超增感机理的研究  

STUDY ON DECAY OF ESR SIGNALS AND MECHANISMOF SUPERSENSITIZATION

作　　者：张金龙[1] 朱正华[1] 

机构地区：[1]华东理工大学精细化工研究所

出　　处：《感光科学与光化学》1994年第4期364-368,共5页Photographic Science and Photochemistry

摘　　要：ＥＳＲ信号的衰减与超增感机理的研究张金龙，朱正华（华东理工大学精细化工研究所，上海２００２３７）关键词ＥＳＲ，正穴，衰减动力学，超增感机理众所周知，超增感机理在感光化学中起着极其重要的作用，因此成为广大感光科学工作者研究的一大热点，先后提出了各自的设...sed 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 k_2 = 3.269 ×10￣(-4)s￣(-1), k_2= 5.589 ×10￣(-5)s￣(-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.

关 键 词：衰减动力学 超增感机理 超增感剂 ESR信号 

分 类 号：TQ572.36[化学工程—精细化工]