感绿染料增感AgCl乳剂的光电子特性——增感时间对光电子衰减的影响  

Photoelectron Characteristic of AgCl EmulsionSensitized by Green-sensitizing Dye——The Influence of Sensitization Time on Photoelectron Decay

作　　者：张荣香[1] 李晓苇[1] 张继县[1] 赖伟东[1] 张伟[1] 

机构地区：[1]河北大学物理科学与技术学院,河北保定071002

出　　处：《河北大学学报（自然科学版）》2005年第6期591-594,598,共5页Journal of Hebei University(Natural Science Edition)

基　　金：国家自然科学基金资助项目(10274017);河北省自然科学基金资助项目(103097)

摘　　要：利用微波吸收介电谱检测技术测量了感绿染料增感AgCl乳剂的自由和浅束缚光电子时间分辨谱．对比发现增感乳剂与未增感乳剂光电子衰减规律相似，均具有2个一级衰减区；增感样品的自由和浅束缚光电子的衰减时间和寿命由于填隙银离子的增加而变短，通过分析光电子衰减时间和寿命与增感时间的对应关系，确定了最佳的增感时间．The time-resolved spectra of free and shallow-trapped photoelectron are obtained by microwave absorption and dielectric spectrum detection technology for the green-sensitizing dye sensitized AgCl emulsion. It is found that the photoelectron decay of sensitized emulsion can be divided into two first-order exponential decay sections, which is analogy to that of pure emulsion. And the free and shallow-trapped photoelectron decay time and lifetime of sensitized emulsion become zation time is obtained from the change of shorter because of increase of interstitial silver ions. The best sensitiphotoelectron decay time and lifetime with sensitization time.

关 键 词：光谱增感 AgCl乳剂 光电子 增感时间 

分 类 号：TQ571[化学工程—精细化工]