| ZnS:Mn2+常压吸收谱与高压移位的理论研究 |
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| 引用本文： | 黄小益 王瑞旦. ZnS:Mn2+常压吸收谱与高压移位的理论研究[J]. 发光学报, 1995, 16(1): 44-50 |
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| 作者姓名： | 黄小益 王瑞旦 |
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| 作者单位： | 1. 湖南省郴州师范专科学校物理系, 郴州 423000;2. 湖南师范大学物理系, 长沙 410006 |
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| 摘 要： | 迄今对ZnS:Mn2+五个吸收谱带归属意见不一.本文采用晶场理论与晶场光谱压力移位理论对ZnS:Mn2+的常压光谱、高压移位作了统一的理论计算和分析;计算结果与实验满意地符合,并对长期以来未能归属的第四,五两带作出了正确的归属.结果表明用一般的晶场理论框架不能解释第三、四带的常压谱值,本文用共价效应对第三、四带作出了令人满意的计算与解释.
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| 关 键 词： | 归属 移位 共价 |
| 收稿时间： | 1994-04-13 |
THEORETICAL STUDY OF NORMAL PRESSURE OPTICAL SPECTRUM AND PRESSURE-INDUCED SHIFTS OF ZnS:Mn2+ |
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| Huang Xiaoyi. THEORETICAL STUDY OF NORMAL PRESSURE OPTICAL SPECTRUM AND PRESSURE-INDUCED SHIFTS OF ZnS:Mn2+[J]. Chinese Journal of Luminescence, 1995, 16(1): 44-50 |
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| Authors: | Huang Xiaoyi |
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| Affiliation: | 1. Department of Physics, Chenzhou Teacher''s College, Chenzhou 423000;2. Department of Physics, Hunan Normal University, Changsha 410006 |
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| Abstract: | p to now,no agreement on the assignments of the five absorption peaks of ZnS:Mn2+ has been achieved.Crystal field theory and pressure-induced shift theory were used to calculate and explain the normal pressure optical spectrum and pressure--induced shifts of ZnS:Mn2+.The results agree well with experimental measurements. Moreover,in this paper,we have determined the assignments of the forth and the fifth peaks,which have not been solved for several decades.Calculations and analysis show that the general crystal field theory can not explain the normal pressure experimential data of the third and the forth peaks.Adopting the view of Parrot et al.about covalency effect,a satisfied calculation result and explaination are presented. |
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| Keywords: | assignment shift covalency |
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