| 玻璃基质中ZnS纳米晶Mn2+掺杂的两种组态下载流子限域 |
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| 引用本文： | 刘俊业 刘春旭. 玻璃基质中ZnS纳米晶Mn2+掺杂的两种组态下载流子限域[J]. 发光学报, 1997, 18(4): 323-325 |
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| 作者姓名： | 刘俊业 刘春旭 |
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| 作者单位： | 1. 中国科学院激发态物理开放研究实验室, 长春 130021;2. 中国科学院长春物理研究所, 长春 130021 |
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| 基金项目： | 国家自然科学基金,中国科学院激发态物理开放研究实验室资助 |
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| 摘 要： | 用融熔法制备了分散有ZnSⅩⅣMn2+纳米晶的钠硼硅(Na2O-B2O2-SiO2)玻璃.对样品在不同温度和时间下进行退火处理,获得不同尺寸的纳米晶.通过激发和发射光谱测量发现样品中的Mn2+有两种组态,即替位组态(Mn2+)替位和间隙组态(Mn2+)间隙.用有效质量模型计算了纳米晶的粒径.结果表明在一些样品中存在着载流子限域即R<Ra.
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| 关 键 词： | 纳米微晶 替位和间隙杂质 载流子限域 |
CARRIER CONFINEMENT OF TOW CONFIGURATIONS OF Mn2+ IN PYREX GLASSE WITH DISPERSED ZnSⅩⅣMn2+ NANOCRYSTALLITES |
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| Liu Junye,Liu Chunxu,Xu Wu,Li Dan. CARRIER CONFINEMENT OF TOW CONFIGURATIONS OF Mn2+ IN PYREX GLASSE WITH DISPERSED ZnSⅩⅣMn2+ NANOCRYSTALLITES[J]. Chinese Journal of Luminescence, 1997, 18(4): 323-325 |
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| Authors: | Liu Junye Liu Chunxu Xu Wu Li Dan |
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| Affiliation: | 1. Laboratory of Excited State Processis, Chinese Academy of Sciences, Changchun 130021;2. Changchun Institute of Physics, Chinese Academy of Sciences, Changchun 130021 |
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| Abstract: | The pyrex glasses with ZnSⅩⅣMn2+ nanocrystals were prepared by melt method.It was found that there are two configurations of Mn2+ in the samples,or(Mn2+)substitution and (Mn2+)interstitial configurations,by measuring excitation and emission spectra of samples.The diameters of nanocrystals were calculated using the effective mass model.It was suggested that there are the carrier confinements in some samples,or R<RB. |
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| Keywords: | nanocrystal substitution and interstitial impurities carrier confinement |
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