| 硫氰酸钾在外延卤化银乳剂制备中的作用 |
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| 引用本文： | 秦皓昱,周本茂,任新民.硫氰酸钾在外延卤化银乳剂制备中的作用[J].影像科学与光化学,1991,9(2):81-84. |
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| 作者姓名： | 秦皓昱 周本茂 任新民 |
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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： | 外延卤化银乳剂一般都是在有机调变剂作用下制备出来的,而有机调变剂会给乳剂体系带来一些不利因素。本文中用无机酸盐KSCN作外延乳剂调变剂制备出了一系列外延乳剂,并利用电子透射显微技术研究了硫氰酸钾对主体乳剂颗粒的浸蚀作用和浸蚀部位,指出了浸蚀部位和外延生长位置间的关系,对八面体及薄片颗粒外延乳剂的形貌和晶态进行了研究和描述,对不同外延成份的薄片颗粒外延乳剂的形貌也进行了描述,证明了无机酸盐KSCN可以用作外延调变剂。
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| 关 键 词： | 硫氰酸钾 外延乳剂 调变剂 浸蚀 透射电子显微技术 |
| 收稿时间： | 1989-05-26 |
THE FUNCTION OF POTASSIUM THIOCYANATE AS A GROW-TH MODIFIER IN THE PREPARATION OF THE EPITAXIAL SILVER HALIDE EMULSION |
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| QIN HAO-YU,ZHOU BEN-MAO,REN XIN-MIN.THE FUNCTION OF POTASSIUM THIOCYANATE AS A GROW-TH MODIFIER IN THE PREPARATION OF THE EPITAXIAL SILVER HALIDE EMULSION[J].Imaging Science and Photochemistry,1991,9(2):81-84. |
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| Authors: | QIN HAO-YU ZHOU BEN-MAO REN XIN-MIN |
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| Affiliation: | Institute of Photographic Chemistry, Academia Sinica, Beijing 100101, P. R. China |
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| Abstract: | In general, the epitaxial silver halide emalsions are prepared under the action of organic crystal growth modifiers. But the organic modifiers have some undersirable effects on the epitaxial emulsions. In this paper, several kinds of epitaxial emulsion were prepared under the action of potassium thiocyanate as a modifier. The etching effect and locality of potassium thiocyanate on the host emulsion grains were studied with the transmitance electron microscopy (TEM). The relationship between etching locality and epitaxial growth position is pointed out. The morphology and crystalline state of octahedral and tabular epitaxial grains were studied. The morphology of the tabular grains with different epitaxial composition were also discribed. Potassium thiocyanate was proved to be an efficient inorganic growth modifier. |
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| Keywords: | potassium thiocyanate epitaxial emulsion modifier etch transmitance electron microscopy |
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