影像科学与光化学 ›› 2003, Vol. 21 ›› Issue (5): 321-327.DOI: 10.7517/j.issn.1674-0475.2003.05.321

• 研究论文 •    下一篇

染料增感AgBr乳剂的光电子衰减动力学研究

杨少鹏, 傅广生, 曹宁, 孟涛, 董国义, 李晓苇   

  1. 河北大学, 物理科学与技术学院, 保定, 071002
  • 收稿日期:2003-04-19 修回日期:2002-05-19 出版日期:2003-09-23 发布日期:2003-09-23
  • 通讯作者: 杨少鹏,E-mail:spyang@mail.hbu.edu.cn,Tel.:0312-5079355,Fax:0312-5011174
  • 基金资助:
    国家自然科学基金项目(10274017);教育部科学技术研究重点项目(01011);河北省博士基金项目(01547012D);河北省高校博士基金及河北大学博士基金项目

PHOTOELECTRONS DECAY KINETICS INVESTIGATION OF DYE SENSITIZED AgBr EMULSION

YANG Shao-peng, FU Guang-sheng, CAO Ning, MENG Tao, DONG Guo-yi, LI Xiao-wei   

  1. College of Physics Science and Technology, Hebei University, Baoding 071002, P. R. China
  • Received:2003-04-19 Revised:2002-05-19 Online:2003-09-23 Published:2003-09-23

摘要: 本工作利用微波吸收薄膜介电谱测量技术,测量了菁染料光谱增感后的AgBr晶体乳剂在脉冲激光曝光后产生的光电子衰减时间特性,分析了不同类型的染料及其增感条件对材料光电子时间特性的影响关系.通过比较增感后的T 颗粒乳剂和立方体乳剂的光电子衰减特性,实验验证了吸附在T 颗粒(111)晶面上的染料比吸附在立方体(100)晶面上的染料更有效、更有助于形成潜影的论据.

关键词: 微波吸收, 光电子寿命, 光谱增感

Abstract: Microwave Absorption Technique(MWA)is used to study the influence of spectral sensitization on electron decay characteristics in silver halide emulsion.For cubic and tabular grains AgBr crystals,the corresponding relation between sensitization condition and photoelectron decay time is discussed.The best dye sensitization parameter including dye type and dye concentration,which result in high photographic efficiency,is obtained.There is a comparison between sensitized cubic grains and tabular grains emulsion crystals in photoelectrons characteristic.For dye sensitized tabular grains AgBr emulsion,the free photoelectron lifetime is in principle smaller than for cubes.The photographic efficiency of former is higher than the latter.

Key words: microwave absorption, photoelectron lifetime, spectral sensitization

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