影像科学与光化学 ›› 1998, Vol. 16 ›› Issue (2): 146-153.DOI: 10.7517/j.issn.1674-0475.1998.02.146

• 研究论文 • 上一篇    下一篇

新型中空卤化银颗粒乳剂的制备和性能研究 Ⅲ.中空卤化银颗粒乳剂感光性能的研究

卢翌, 姜磊, 王素娥   

  1. 中国科学院感光化学研究所, 北京100101
  • 收稿日期:1997-07-16 修回日期:1997-12-26 出版日期:1998-05-20 发布日期:1998-05-20
  • 通讯作者: 王素娥
  • 基金资助:
    国家自然科学基金资助项目(批准号:29573140)

STUDY ON THE PREPARATION AND PROPERTY OF NOVEL HOLLOW-GRAIN SILVER HALIDE EMULSIONS Ⅲ: THE PHOTOGRAPHIC PROPERTY OF HOLLOW-GRAIN SILVER HALIDE EMULSIONS

LU Yi, JIANG Lei, WANG Su’e   

  1. Institute of Photographic Chemistry, The Chinese Academy of Sciences, Beijing 100101, P. R. China
  • Received:1997-07-16 Revised:1997-12-26 Online:1998-05-20 Published:1998-05-20

摘要: 本文应用表面显影、Dember效应、化学成熟、光谱增感等方法,对照实心立方体溴化银乳剂研究了中空卤化银微晶的结构与光物理性质及感光性能的关系。实验结果表明:(1)中空卤化银的潜影在孔洞处优先形成;(2)中空卤化银微晶中位错、缺陷较多,其填隙银离子浓度较大,电子陷阱较多;(3)中空颗粒表面反应活性高,感光度高,光谱增感效果好;(4)中空颗粒乳剂其反差较大,最大密度较高;(5)上述结果均可归因于中空卤化银微晶所特有的孔洞结构。

关键词: 中空颗粒, 卤化银乳剂, 感光性能

Abstract: The relations between structures and properties of the hollow microcrystal emulsions were studied by means of surface development, Dember effect, chemical sensitization, spectral sensitization and so on. The results showed that: (1) The latent image is always formed preferentially around the holes of the hollow silver halide microcrystals; (2) There are more microcrystal defects and dislocations, more interstitial silver ions and more electron traps in hollow grains than in solid cubic grains; (3) Compared with cubic AgBr emulsions, the hollow grain emulsions have higher surface reaction activity and higher chemical and spectral sensitivity; (4) It is found that the contrast and maximum density of the hollow silver halide emulsions prepared by the methods of halogen displacement and epitaxial growth are very high; and (5) All above mentioned advantages can be ascribed to the unique hole structure of hollow silver halide microcrystals.

Key words: hollow-grain, silver halide emulsions, photographic properties