| "神舟3号"上生长Cd1-xZnxTe晶片Zn组分分布的显微荧光研究 |
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| 引用本文： | 刘劼,李志锋,沈杰,林杏朝,刘诗嘉,龚海梅."神舟3号"上生长Cd1-xZnxTe晶片Zn组分分布的显微荧光研究[J].量子电子学报,2005,22(2):238-242. |
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| 作者姓名： | 刘劼 李志锋 沈杰 林杏朝 刘诗嘉 龚海梅 |
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| 作者单位： | 红外物理国家重点实验室,中国科学院上海技术物理研究所,上海,200083;传感技术国家重点实验室,中国科学院上海技术物理研究所,上海,200083 |
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| 基金项目： | 国家重点基础研究发展计划(973计划)，中国科学院资助项目 |
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| 摘 要： | 用显微荧光(μ-PL)方法对在我国"神舟3号"上空间生长的CdznTe晶片中zn组分分布的研究.对晶片的单晶"壳"区及未完全熔化的"芯"区中的小结晶区域进行了逐点PL测量.对测得每一点的PL谱进行了拟合,得到测量点的禁带宽度参数Eg,其分布对应于CdznTe中zn的组分分布.测量结果给出了空间生长晶片zn组分布的变化趋势和统计规律.作为比较,测量并分析了一块采用相同方法在地面生长的CdznTe晶片.
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| 关 键 词： | 显微荧光 CdZnTe Zn组分 平面分布 扫描 |
| 文章编号： | 1007-5461(2005)02-0238-05 |
| 收稿时间： | 2004/2/11 |
| 修稿时间： | 2004年2月11日 |
Study on Zn composition distributions in Cd1-xZnxTe wafers grown in the Shenzhou 3 by micro-photoluminescence |
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| LIU Jie,LI Zhi-feng,SHEN Jie,LIN Xing-zhao,LIU Shi-jia,GONG Hai-mei.Study on Zn composition distributions in Cd1-xZnxTe wafers grown in the Shenzhou 3 by micro-photoluminescence[J].Chinese Journal of Quantum Electronics,2005,22(2):238-242. |
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| Authors: | LIU Jie LI Zhi-feng SHEN Jie LIN Xing-zhao LIU Shi-jia GONG Hai-mei |
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| Abstract: | We report the study on Zn composition distributions in Cd0.96Zn0.04Te wafers grown in Shenzhou 3 spacecraft by micro-photoluminescence (μ-PL). The PL is performed over the crystalized " crust " region and the plateau regions in the " core " which are surrounded by non-crystalized solvent and resulted from incomplete melting of the raw material during the growth. Each PL spectrum has been fitted theoretically, resulting in the energy band gap Eg. The distributions of Eg are correlated to the Zn composition distributions. The results give out the variation trend and the statistical characteristics of the Zn composition distributions. An earth-grown CdZnTe wafer has been measured for comparison. |
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| Keywords: | CdZnTe |
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