| CdZnTe晶片的Raman光谱研究 |
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| 引用本文： | 曾冬梅,王涛,周海,杨英歌. CdZnTe晶片的Raman光谱研究[J]. 人工晶体学报, 2010, 39(1): 221-225 |
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| 作者姓名： | 曾冬梅 王涛 周海 杨英歌 |
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| 作者单位： | 北京石油化工学院材料科学与工程系,北京,102617;西北工业大学凝固技术国家重点实?槭?西安,710072 |
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| 基金项目： | 西北工业大学凝固技术国家重点实验室开放课题(SKLSP201005) |
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| 摘 要： | 利用Raman光谱技术研究了CdZnTe晶片表面处理方法、激光功率及波长变化对CdZnTe晶片的Raman谱线影响.研究表明:CdZnTe晶片分别经过机械抛光、Br-MeOH溶液处理以及Br-MeOH溶液+ KOH/甲醇溶液处理后,由于表面晶格完整性的改变, Raman光谱出现了明显变化.采用514.5 nm、632.8 nm及785 nm激光激发CdZnTe晶片时,晶片的Raman波谱也有所不同,其中用785 nm激光激发样品,荧光发光峰位于100～200 cm~(-1)范围,掩盖了晶片Raman特征峰.在对CdZnTe晶片做Raman测试时,尽可能选择较低功率.
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| 关 键 词： | CdZnTe Raman光谱 表面处理 激光功率, |
Study on Raman Spectrum of CdZnTe Wafer |
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| ZENG Dong-mei,WANG Tao,ZHOU Hai,YANG Ying-ge. Study on Raman Spectrum of CdZnTe Wafer[J]. Journal of Synthetic Crystals, 2010, 39(1): 221-225 |
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| Authors: | ZENG Dong-mei WANG Tao ZHOU Hai YANG Ying-ge |
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| Affiliation: | 1.Department of Materials Science and Engineering;Beijing Institute of Petrochemical Technology;Beijing 102617;China;2.State Key Laboratory of Solidification Processing;Northwest Polytechnical University;Xi'an 710072;China |
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| Abstract: | The effects of surface treatments,laser power and wavelength changes on Raman spectrum of CdZnTe wafers were studied.The experiment shows that mechanical polishing,Br-MeOH solution and Br-MeOH + KOH/MeOH solution treatment can lead to the changes of lattice perfection of CdZnTe wafer surface,which make Raman spectrum exhibit greater variation.Raman scattering spectra of CdZnTe wafers were also different at 514.5 nm,632.8 nm and 785 nm laser excitation wavelengths,and Raman scattering spectra of basic phonon... |
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| Keywords: | CdZnTe Raman spectrum surface treatment laser power |
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