| 多结构立方体溴碘化银乳剂微晶壳层制备的研究 |
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| 引用本文： | 况艺娜,彭彦彬,马凤云,周本茂.多结构立方体溴碘化银乳剂微晶壳层制备的研究[J].影像科学与光化学,1999,17(3):217-224. |
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| 作者姓名： | 况艺娜 彭彦彬 马凤云 周本茂 |
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| 作者单位： | 中国科学院感光化学研究所, 北京100101 |
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| 摘 要： | 本文研究了多结构立方体溴碘化银乳剂微晶的壳层制备。在壳层制备过程中,pAg值、TAI和氨能明显影响晶体的生长和再成核过程。对立方体AgBr晶体而言,包壳速度相同时,再成核晶体数随包壳时pAg值的增加或TAI的存在而增加,随着氨的存在而下降。当TAI存在时,晶体习性由立方体转向八面体。在本实验条件下,当制备壳层的包壳速度比达到1:3.3时,乳剂的感光度有明显的增加。核壳银量比对乳剂的感光度也有明显的影响,当核壳银量比由0.83:1上升到4.5:1时,感光度上升了大约80%,而灰雾几乎没有变化。
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| 关 键 词： | 溴碘化银 多结构 壳层 |
| 收稿时间： | 1998-06-18 |
STUDY ON THE PREPERATION OF SHELL LAYER OF MULTI- STRUCTURE SILVER BROMOIODIDE CUBIC MICROCRYSTALS |
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| KUANG Yina,PENG Yanbin,MA Fengyun,ZHOU Benmao.STUDY ON THE PREPERATION OF SHELL LAYER OF MULTI- STRUCTURE SILVER BROMOIODIDE CUBIC MICROCRYSTALS[J].Imaging Science and Photochemistry,1999,17(3):217-224. |
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| Authors: | KUANG Yina PENG Yanbin MA Fengyun ZHOU Benmao |
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| Affiliation: | Institute of Photographic Chemistry, The Chinese Academy of Sciences, Beijing 100101, P.R. China |
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| Abstract: | The
preparation of shell layer of multistructure silver bromoiodide cubic microcrystals was studied.
During the preparation of shell layer, the pAg value TAI and ammonia affected crystal growth
and renucleation apparently. For AgBr cubes, the number of renucleated crystals was increased
with the increase of pAg value or the adding of TAI under the same reactant addition rate. The
crystal habit was transferred from cube to octahedra when TAI existed. The number of
renucleated crystals was decreased when ammonia existed.The sensitivity wasn't increased
apparently when adding rate ratio of the reactant reached 13.3 under the condition of our
experiments. But it was affected by silver quantity ratio between seed and shell. Sensitivity
was increased about 80% when the silver quantity ratio between seed and shell was increased
from 0.831 to 4.51, at the same time fog was almost unchanged. |
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| Keywords: | silver bromoiodide multistructure shell layer |
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