| 水热法ZnO单晶的缺陷和光学特性研究 |
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| 引用本文： | 孙晓慧,许毅,杭寅. 水热法ZnO单晶的缺陷和光学特性研究[J]. 人工晶体学报, 2009, 38(1): 210-214 |
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| 作者姓名： | 孙晓慧 许毅 杭寅 |
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| 作者单位： | 上海工程技术大学基础教学学院,上海,201620;上海交通大学电子信息与电气工程学院,上海,200240;中国科学院上海光学精密机械研究所,上海,201800 |
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| 摘 要： | 运用电感耦合等离子体原子发射光谱仪(ICP-AES)分析了比较了水热法ZnO晶体+c及-c部分的杂质,用四探针法比较了两部分的电阻率.结果表明, 晶体+c部分杂质含量少于-c部分,且前者电阻率明显高于后者.比较了Xe灯激发下两部分的光学性质,用氧气和氢气分别对+c部分ZnO进行处理,并进一步用He-Cd激光器对晶体的光学性能进行了研究,分析表明ZnO晶体416 nm左右的蓝光发射来自导带到锌空位(VZn)浅受主能级的跃迁,490 nm的蓝绿光发射与锌填隙(Zni)有关,540 nm附近的黄绿光发射与氧填隙(Oi)形成的能级有关.
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| 关 键 词： | ZnO 晶体缺陷 水热法 光致发光, |
Study on Defects and Optical Properties of ZnO Single Crystals Grown by Hydrothermal Method |
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| SUN Xiao-hui,XU Yi,HANG Yin. Study on Defects and Optical Properties of ZnO Single Crystals Grown by Hydrothermal Method[J]. Journal of Synthetic Crystals, 2009, 38(1): 210-214 |
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| Authors: | SUN Xiao-hui XU Yi HANG Yin |
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| Affiliation: | 1.College of Fundamental Studies;Shanghai University of Engineering Science;Shanghai 201620;China;2.School of Electronic Information and Electrical Engineering;Shanghai Jiao Tong University;Shanghai 200240;3.Shanghai Instituteof Optics and Fine Mechanics;Chinese Academy of Sciences;Shanghai 201800;China |
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| Abstract: | Impurities and resistivity have been compared for +c part and-c part of ZnO single crystal grown by hydrothermal method.The results indicate that-c part has more impurities and higher conductivity.ZnO crystals are annealed under oxygen-rich environment and hydrogen-rich environment.The optical properties are investigated under Xe lamp and He-Cd laser.Results show that the blue emission of 416 nm is related to the electron transition from zinc vacancy(VZn) to valence band,490 nm emission is related to zinc i... |
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| Keywords: | ZnO |
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