溴化银乳剂中Ag2掺杂的位置效应研究

doi:10.7517/j.issn.1674-0475.2005.05.357

影像科学与光化学 ›› 2005, Vol. 23 ›› Issue (5): 357-362.DOI: 10.7517/j.issn.1674-0475.2005.05.357

溴化银乳剂中Ag₂掺杂的位置效应研究

智欣^1,2, 史瑶¹, 夏培杰¹

1. 中国科学院, 理化技术研究所, 北京, 100101;
2. 中国科学院, 研究生院, 北京, 100039

收稿日期:2005-03-02 修回日期:2005-05-18 出版日期:2005-09-23 发布日期:2005-09-23
通讯作者: 夏培杰
基金资助:
国家重点自然科学基金资助项目(20033010).

Position Effect of Ag₂ Doped in Cubic Silver Bromide Emulsions

ZHI Xin^1,2, SHI Yao¹, XIA Pei-jie¹

1. Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100101, P.R. China;
2. Graduate School of the Chinese Academy of Sciences, Beijing 100039, P.R. China

Received:2005-03-02 Revised:2005-05-18 Online:2005-09-23 Published:2005-09-23

摘要/Abstract

摘要： 使用微机控制的双注仪,在晶体生长过程的不同时刻,加入一定浓度的二甲基胺硼烷(DMAB),制得了一系列Ag₂处于不同掺杂位置的立方体溴化银微晶乳剂.对这些乳剂感光性能的研究表明:1)Ag₂掺杂乳剂与未掺杂乳剂相比,感光度有显著提高;2)Ag₂掺杂乳剂可同时与常规的硫加金化学增感和光谱增感进行协同增感;3)Ag₂掺杂接近微晶表面时乳剂感光度的增幅最大;4)在本实验条件下,掺杂乳剂的灰雾均保持在较低的水平.

关键词: 空穴-电子转换, Ag₂掺杂, S+Au增感, 染料增感, 协同增感

Abstract: In the emulsifying process of silver bromide microcrystals in the double-jet apparatus controlled by a microcomputer, a specific quantity of DMAB was added at different time when the crystal growth to obtain a series of cubic AgBr emulsions in which Ag₂ were doped into different depths of AgBr microcrystals. The results from determination of photographic properties of these emulsions showed: 1) that the sensitivities of Ag₂ doped emulsions, relative to that of the undoped emulsion as the controlled one, were remarkably increased; 2) that a significant cooperative sensitization of the internal doped silver dimmers with the surface sulfur-plus-gold and dye sensitizations was observed; 3) that the closer to the surface of grains the Ag₂ doped in AgBr grains was, and the greater the sensitivities of the doped emulsions were; 4) that fog densities of all emulsions doped by Ag₂, including those primitive, sensitized by sulfur-plus-gold and by green-sensitive dye, were kept in a reasonably low level.

Key words: hole-electron converter, doped by Ag dimmer, sulfur-plus-gold sensitization, dye sensitization, cooperative sensitization

中图分类号:

TQ57

智欣, 史瑶, 夏培杰. 溴化银乳剂中Ag₂掺杂的位置效应研究[J]. 影像科学与光化学, 2005, 23(5): 357-362.

ZHI Xin, SHI Yao, XIA Pei-jie. Position Effect of Ag₂ Doped in Cubic Silver Bromide Emulsions[J]. Imaging Science and Photochemistry, 2005, 23(5): 357-362.

参考文献

[1] 夏培杰,国红,姚林辉,等.潜影形成过程中的空穴及其转换[J].感光科学与光化学,2002,20(1):46.Xia P J, Guo H, Yao L H, et al. Conversion of positive hole to electron in the process of latent image formation[J].Photographic Science and Photochemistry, 2002,20(1):46.
[2] Tani T. Photographic effects of electron and positive hole traps in silver halide Ⅱ. Reduction sensitization in octahedral silver halide grains[J]. Photogr. Sci. Eng., 1971,15(3):181.
[3] Tani T, Murofushi M. Silver microclusters on silver halide grains as latent image and reduction sensitization centers[J] . J. Imaging Sci. and Tech., 1994,38 (1): 1.
[4] Tani T. Silver clusters of photographic interest(2):A new model for R and P centers[J]. J. Imaging Sci. and Tech., 1997,41:577.
[5] TaniT, TasakaT, MurofushiM, etal. Silver clusters of photcgraphic interest part 5: formation of R centers and P centers by reduction sensitization and light absorption of silver bromide grains[J]. J. Imaging Sci., 1999,47:1.
[6] Lowe W G. In: James T H. The Theory of the Photographic Process[M]. Chapter 5, 4th Ed. New York: Macmillan, 1977,152.
[7] 史瑶,智欣,夏培杰,等.AgBr核壳乳剂的颗粒内部还原增感与表面化学增感的协同增感效应[J].感光科学与光化学,2004,22(5):333Shi Y, Zhi X, Xia P J, et al. Cooperative sensitization of AgBr core-shell emulsion by internal reduction and surface chemical sensitization[J]. Photographic Science and Photochemistry, 2004,22 (5):333.
[8] 智欣,史瑶,曹静,等.AgBrI核壳乳剂的还原敏化与硫加金敏化的协同增感效应[J].感光科学与光化学,2004,22(5):350.Zhi X, Shi Y, Cao J, et al. Cooperative sensitization by reduction and chemical sensitization in AgBrI core-shell emulsions[J]. Photographic Science and Photochemistry,2004,22(5):350.
[9] De KeyzerR, Treguer M, BelloniCJ, HyndR. A photosensitive silver halide element with increased photosensitivity[P]. Europe Patent, EP 0 922 994 A2. 1998-11-30.
[10] Hailstone R. Making every photon count[J]. Nature, 1999, (402): 856-857.

溴化银乳剂中Ag₂掺杂的位置效应研究

Position Effect of Ag₂ Doped in Cubic Silver Bromide Emulsions

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