| 染料增感AgBr乳剂的光电子衰减动力学研究 |
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| 引用本文： | 杨少鹏,傅广生,曹宁,孟涛,董国义,李晓苇.染料增感AgBr乳剂的光电子衰减动力学研究[J].影像科学与光化学,2003,21(5). |
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| 作者姓名： | 杨少鹏 傅广生 曹宁 孟涛 董国义 李晓苇 |
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| 作者单位： | 河北大学,物理科学与技术学院,保定,071002 |
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| 基金项目： | 国家自然科学基金，教育部科学技术研究项目，河北省博士科研项目，河北省博士科研项目，河北大学校科研和教改项目 |
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| 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.
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| 关 键 词： | 微波吸收 光电子寿命 光谱增感 |
PHOTOELECTRONS DECAY KINETICS INVESTIGATION OF DYE SENSITIZED AgBr EMULSION |
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| 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. |
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| Keywords: | microwave absorption photoelectron lifetime spectral sensitization |
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