纳米AgBr乳剂的制备及其紫外吸收光谱的研究  

PREPARATION AND UV ABSORPTION INVESTIGATION OF SILVER HALIDE NANOMETER CRYSTALLITE PHOTOGRAPHIC EMULSIONS

作　　者：刘素文[1] 付圣利[1] 岳军[1] 张懋森[1] 

机构地区：[1]中国科学技术大学化学物理系

出　　处：《感光科学与光化学》1996年第3期256-260,共5页Photographic Science and Photochemistry

基　　金：中国科学院青年基金

摘　　要：纳米ＡｇＢｒ乳剂的制备及其紫外吸收光谱的研究刘素文，付圣利，岳军，张懋森（中国科学技术大学化学物理系，合肥２３００２６）关键词纳米粒子，乳剂，量子尺寸效应通常人们把粒径１～１００ｎｍ之间的金属、半导体、氧化物及各种化合物的粒子或者粒子的集合体称为纳米...Silver halide nanometer crystallite photographic emulsions containing different iodide value were prepared by complexing precipitation at homogeneous phase. The average sizes of the particles were 14～30 nm in the emulsions. The iodide effect and coalescence of the particles were investigated,as well the growth process of the emulsions was measured dynamically by UV absorption.It is observed t hat the threshold value of absorption spectrum at long wavelength shifts toward short wavelength direction when the size of particles decreases. A approximate calculation among the particle size,the growth time and the value of the long wavelength edge of absorption spectrum is given in this paper.

关 键 词：纳米粒子 感光乳剂 紫外吸收光谱 卤化银乳剂 

分 类 号：TQ575[化学工程—精细化工]