影像科学与光化学 ›› 1999, Vol. 17 ›› Issue (3): 239-246.DOI: 10.7517/j.issn.1674-0475.1999.03.239

• 研究论文 • 上一篇    下一篇

增感染料与卤化银微晶之间的作用及其聚集态的研究

史瑶1, 赵文芳1, 李振兴1, 阎文鹏1, 李群1, 西城浩志2, 尻询2   

  1. 1. 中国科学院感光化学研究所, 北京100101;
    2. Kyoto Institute of Technology, Kyoto 606, Japan
  • 收稿日期:1998-09-01 修回日期:2009-03-25 出版日期:1999-08-20 发布日期:1999-08-20
  • 通讯作者: 赵文芳
  • 基金资助:
    国家自然科学基金(批准号:29873054);美国柯达公司资助项目

STUDY ON THE INTERACTION OF SENSITIZING DYES-SILVER HALIDE MICROCRYSTAL AND FORMATION OF AGGREGATES

SHI Yao1, ZHAO Wenfang1, LI Zhenxing1, LI Qun1, YAN Wenpeng1, SAIJO H.2, SHIOJIRI M.2   

  1. 1. Institute of Photogrphic Chemistry, The Chinese Academy of Sciences, Beijing 100101, P.R. China;
    2. Kyoto Institute of Technology, Kyoto 606, Japan
  • Received:1998-09-01 Revised:2009-03-25 Online:1999-08-20 Published:1999-08-20

摘要: 本文研究了光谱增感染料的结构对立方体卤化银乳剂的感光性能的影响,并利用反射光谱和彩色分析荧光电镜研究了染料在卤化银微晶上的聚集态和J-聚集体的相对尺寸,通过测定乳剂离子电导率研究了染料的结构对乳剂离子电导率的影响。实验结果表明:本文中所用的九个染料不管是增感还是减感染料都能在立方体卤化银乳剂上形成J-聚集态;对噻碳菁染料而言,其5位上无论是吸电子基团还是推电子基团的染料形成的J-聚集体的平均尺寸皆较未取代染料的大,其增感效果也较好;苯环5位上吸电子基取代或平面性好的噻碳菁染料可提高立方体AgBrI乳剂的离子电导率,证明它们的增感效果也好;6位硝基取代的吲哚碳菁染料是典型的减感染料,其在立方体乳剂上所形成的J-聚集体较小,但是对乳剂的离子电导无影响。此外,本文还试图对不对称插烯菁染料Dye9使立方体AgBrI乳剂减感的作用进行了解释。

关键词: 增感染料, 卤化银微晶, J-聚集体

Abstract: The effects of the structures of spectral sensitization dyes on photographic properties and on ionic conductivity of cubic AgX emulsion were investigated. The aggregations of dyes on AgX microcrystum and size distributions of J-aggregates by reflection spectrum and ACFEM were studied in this paper. The results show that all dyes used in this paper can form J-aggregate on cubic AgX emulsion, and the average size of J-aggregates of 5substituted thiacarbocyanine dyes is larger than that of 5-unsubsltltuted one. Thiacarbocyanine dyes which are 5substituted by electrondrawing groups or campact can increase ionic conductivity of emulsion. Thiacarbocyanine dyes are sensitizing dyes. The 6-nitro substituted indocarbocyanine dye is a typical desensitizing dye and their J-aggregates on cubic AgX emulsion are small but has no effect on ionic conductivity of emulsion.

Key words: sensitizing dye, silver halide microcystal, J-aggregate