| Ⅱ-Ⅵ族应变层超晶格的X射线衍射分析 |
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| 引用本文： | 李梅,葛中久.Ⅱ-Ⅵ族应变层超晶格的X射线衍射分析[J].发光学报,1996,17(3):261-265. |
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| 作者姓名： | 李梅 葛中久 |
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| 作者单位： | 1. 中国科学院长春物理研究所, 长春 130021;2. 中国科学院激发态物理开放研究实验室, 长春 130021 |
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| 摘 要： | 本文报导了用计算机控制的衍射仪(CuKα辐射)测量的金属有机化学汽相沉淀(MOCVD)方法生长的Ⅱ-Ⅵ族应变层超晶格的X射线衍射曲线,观察到了超晶格结构的多级卫星峰,且卫星峰的强度随角度呈周期性变化.对这种卫星峰形成包络的衍射曲线,用X射线运动学衍射理论进行了分析和讨论,这种讨论有助于理解X射线衍射曲线中卫星峰的形成.同时用光致发光和包络峰宽度的方法估算了样品的结构参数.
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| 关 键 词： | X射线衍射 应变层超晶格 卫星峰 |
| 收稿时间： | 1995-08-28 |
X-RAY DIFFRACTION ANALYSIS ON Ⅱ-Ⅵ COMPOUND STRAINED-LAYER SUPERLATTICE |
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| Li Mei,Ge Zhongjiu,Guan Zhengping,Fan Xiwu.X-RAY DIFFRACTION ANALYSIS ON Ⅱ-Ⅵ COMPOUND STRAINED-LAYER SUPERLATTICE[J].Chinese Journal of Luminescence,1996,17(3):261-265. |
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| Authors: | Li Mei Ge Zhongjiu Guan Zhengping Fan Xiwu |
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| Institution: | 1. Changchun Institute of Physics, Chinese Academy of Sciences, Changchun 130021;2. Laboratory of Excited State Processes, Academia Sinica, Changchun 130021 |
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| Abstract: | X-ray diffraction curves of Ⅱ-Ⅵ compound strained-layer superlattice grown by metal organic chemical vapor deposition (MOCVD) were measured by using computercontroled X-ray diffractometer.The multiplicate peaks of the superlattice structure were observed.The intensity of satellite peaks veries periodically with diffraction angles.Analysis and discussion for the X-ray diffraction curves were carried out by using X-ray kinematic diffraction theory.The structure parameters of the samples were calculated with photoluminescence (PL) and the width of envelope peak. |
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| Keywords: | X-ray diffraction strained-layer superlattice satellite peak |
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