电镜法对硫敏化中心的直接观察  

DIRECT OBSERVATION ON THE SULFUR SENSITIZATIONCENTERS WITH ELECTRON MICROSCOPY

作　　者：胡勇军[1] 王荣琴[1] 彭必先[1] 

机构地区：[1]中国科学院感光化学研究所

出　　处：《感光科学与光化学》1997年第3期230-233,共4页Photographic Science and Photochemistry

基　　金：国家自然科学基金;美国柯达公司资助

摘　　要：电镜法对硫敏化中心的直接观察＊胡勇军王荣琴彭必先＊＊（中国科学院感光化学研究所，北京１００１０１）关键词硫增感，扁平颗粒，增感中心分布，电子显微镜敏化中心的形成是Ａｇ２Ｓ的聚集过程，一般包括两步［１］．在第一步中，增感剂中的硫离子与银离子在ＡｇＸ晶体...irect observation of the sulfur sensitization centers with electron microscopy was made on silver halide tabular grains. It was found that the sulfur sensitization centers are mainly localized on the central part of coreshell tabular grain. The linear dimensions of sulfur sensitization centers are distributed between 6 nm to 250 nm with a peak maximum of 50 nm. The number of silver sulfide molecules contained in the sensitization clusters are evaluated and discussed. 

关 键 词：硫增感 敏化中心 团簇 电镜法 分形学 

分 类 号：TQ571.3[化学工程—精细化工]