| 激活剂Cu和Mn对ZnS相变和微结构的影响 |
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| 引用本文： | 郭常新.激活剂Cu和Mn对ZnS相变和微结构的影响[J].发光学报,1992,13(4):363-366. |
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| 作者姓名： | 郭常新 |
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| 作者单位： | 1. 中国科学技术大学物理系, 合肥 230026;2. 中国科学院中国科学技术大学结构开放实验室, 合肥 230026 |
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| 摘 要： | 为了深入研究交流粉末电致发光粉的发光机理,增加对荧光粉激发能量的输入,提高它的发光亮度,研究这种材料的微结构极为必要。但要在原子尺度上研究材料的结构和成分,目前仍十分困难。至今,人们对电致发光机理还没有统一认识,不能不说与此有关。
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| 关 键 词： | 硫化锌 相变 显微结构 激活剂 |
| 收稿时间： | 1991-12-18 |
EFFECT OF ACTIVATOR Cu OR Mn ON PHASE TRANSITION AND MICROSTRUCTURE OF ZnS |
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| Guo Changxin.EFFECT OF ACTIVATOR Cu OR Mn ON PHASE TRANSITION AND MICROSTRUCTURE OF ZnS[J].Chinese Journal of Luminescence,1992,13(4):363-366. |
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| Authors: | Guo Changxin |
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| Institution: | 1. Department of Physics, University of Science and Technology of China, Hefei 230026;2. Structure Research Laboratory, USTC, Academia Sinica, Hefei 230026 |
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| Abstract: | Studies on the structure phase transition and microstructure of ZnS:Cu and ZnS:Mn by X-ray powder diffraction analysis (XPDA), electron spin resonance (ESR) and high resolution electron microscopy (HREM)show that: (A) the phase transition temperature of ZnS is shifted obviously to higher value when the concentration of Cu is greater than 1×10-3 or to lower value when the concentration of Mn is greater than 1×10-3;(B)for ZnS:Cu 2×10-3(calcined at 900℃),there mainly exist 180° rotation twins of β-phase; (C) for ZnS:Mn 5×10-3 (calcined at 900℃)there mainly exists the coherent growth of β-phase (180° rotation twins) and α-phase at micro-area in atomic scale; and (D) twin boundary areas and crystal streaks are rich in Cu. |
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