影像科学与光化学 ›› 1999, Vol. 17 ›› Issue (3): 253-257.DOI: 10.7517/j.issn.1674-0475.1999.03.253

• 研究简报 • 上一篇    下一篇

多结构立方体溴碘化银乳剂富碘相制备的研究

况艺娜, 彭彦彬, 高彦生, 周本茂   

  1. 中国科学院感光化学研究所, 北京100101
  • 收稿日期:1998-07-02 修回日期:1999-03-26 出版日期:1999-08-20 发布日期:1999-08-20
  • 通讯作者: 彭彦彬

STUDY ON THE PREPERATION OF IODIDERICH PHASE OF MULTISTRUCTURE SILVER BROMOIODIDE CUBIC MICROCRYSTALS

KUANG Yina, PENG Yanbin, GAO Yansheng, ZHOU Benmao   

  1. Institute of Photographic Chemistry, The Chinese Academy of Sciences, Beijing 100101, P.R. China
  • Received:1998-07-02 Revised:1999-03-26 Online:1999-08-20 Published:1999-08-20

摘要: 多结构溴碘化银核壳乳剂的众多优点主要缘于颗粒结构中碘的巧妙应用。首先,正空穴被颗粒内富碘的AgBrI相所捕获,而电子则被外壳所吸收,使电子与正空穴分离,减少了正空穴与导带电子的复合,从而可以提高乳剂的色盲感光度[1]

关键词: 溴碘化银, 多结构, 富碘相, X射线衍射

Abstract: Different preperation methods (KBr-KI、AgI、organic RI) of iodide-rich phase were studied in this experiments. It was observed that iodide-rich methods affected photographic sensitivity of the emulsion prepared apparently. The difference of distribution of iodide ions in AgX microcrystals and dislocation on the surface of the microcrystals, as explored by XRD, may explain the change of sensitivity.

Key words: silver bromoiodide, multi-structure, iodide-rich phase, X-ray diffraction