阻光染料对氯化银乳剂光谱增感的影响

doi:10.7517/j.issn.1674-0475.2002.01.19

影像科学与光化学 ›› 2002, Vol. 20 ›› Issue (1): 19-26.DOI: 10.7517/j.issn.1674-0475.2002.01.19

阻光染料对氯化银乳剂光谱增感的影响

刘红彦, 胡秀杰, 段培成, 陈萍

中国科学院, 理化技术研究所, 北京, 100101

收稿日期:2001-04-03 修回日期:2000-08-29 出版日期:2002-01-23 发布日期:2002-01-23
通讯作者: 陈萍
基金资助:
国家自然科学基金委资助项目(20033010)

EFFECTS OF ANTIHALATION DYES ON SPECTRAL SENSITIZATION OF SILVER CHLORIDE EMULSION

LIU Hong-yan, HU Xiu-jie, DUAN Pei-cheng, CHEN Ping

Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100101, P. R. Chhina

Received:2001-04-03 Revised:2000-08-29 Online:2002-01-23 Published:2002-01-23

摘要/Abstract

摘要： 增感染料在卤化银微晶上吸附并形成J-聚集体是染料光谱增感和超增感的关键步骤.本文利用紫外-可见吸收光谱研究了增感染料和阻光染料在氯化银微晶上的吸附,并考察了阻光染料对增感染料J-聚集体的形成及乳剂感光性能的影响.结果表明:不同阻光染料在氯化银微晶表面的吸附程度不同,对增感染料J-聚集体形成的影响也有差异.其中,吸附较小的不影响增感染料J-聚集体的形成,而吸附较大的阻碍增感染料J-聚集形成,特别是阻光染料在增感染料之前加入乳剂中时.在氯化银微晶上吸附很小的阻光染料基本不影响增感染料对乳剂的光谱增感,而吸附较强的阻光染料不仅吸收入射光,还抑制或破坏增感染料的光谱增感.因此,在氯化银微晶表面没有吸附的阻光染料才是优良的阻光染料.

关键词: 增感染料, 阻光染料, J聚集体

Abstract: On the base of studying on the adsorption of sensitizing dye and antihalation dyes on silver halide crystals with UV-spectrum, we focused on the effects of antihalation dyes on the formation of J-aggregates of the sensitizing dye and emulsions’ sensitivity.It was found that antihalation dyes had different adsorption on silver halide crystals due to their different structures.The stronger the adsorption of antihalation dyes the more effects on J-aggregates formation of sensitizing dyes.Sensitizing dye could increase emulsions’ sensitivity by being adsorbed on silver halide crystals and forming J-aggregates,so those antihalation dyes with less adsorption have less effect on the spectral sensitivity,while antihalation dyes with stronger adsorption could inhibit or destroy the spectral sensitivity,especially when they were added before sensitizing dye.A good antihalation dye was one that had weak adsorption on silver chloride crystals.

Key words: sensitizing dye, antihalation dyes, J-aggregates

中图分类号:

TQ57

刘红彦, 胡秀杰, 段培成, 陈萍. 阻光染料对氯化银乳剂光谱增感的影响[J]. 影像科学与光化学, 2002, 20(1): 19-26.

LIU Hong-yan, HU Xiu-jie, DUAN Pei-cheng, CHEN Ping. EFFECTS OF ANTIHALATION DYES ON SPECTRAL SENSITIZATION OF SILVER CHLORIDE EMULSION[J]. Imaging Science and Photochemistry, 2002, 20(1): 19-26.

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阻光染料对氯化银乳剂光谱增感的影响

EFFECTS OF ANTIHALATION DYES ON SPECTRAL SENSITIZATION OF SILVER CHLORIDE EMULSION

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