| 溶胶-凝胶法制备CuAlO2粉末及其光电性能研究 |
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| 引用本文： | 钟焕周,刘远,宋晓英,谢致薇,杨元政.溶胶-凝胶法制备CuAlO2粉末及其光电性能研究[J].人工晶体学报,2012,41(3):642-646. |
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| 作者姓名： | 钟焕周 刘远 宋晓英 谢致薇 杨元政 |
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| 作者单位： | 广东工业大学材料与能源学院,广州,510006 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 采用柠檬酸络合的无机盐溶胶-凝胶法,结合自蔓延燃烧制备出铜铁矿结构的CuAlO2粉末。用DSC-TGA、X射线衍射仪、扫描电子显微镜等分析方法对CuAlO2的形成过程、物相结构、微观形貌等进行了研究。结果表明:形成CuAlO2相的温度在1092℃左右,在1100℃烧结2 h可以得到铜铁矿结构CuAlO2纳米粉末,其粒径分布在50～200 nm之间。制备的样品为p型半导体,CuAlO2片的电阻率为45.5Ω.cm;光学带隙增大,其值约为3.75 eV。
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| 关 键 词： | CuAlO2 溶胶-凝胶法 p型导电 光学带隙 |
Photoelectric Properties of CuAlO2 Powders Prepared by Sol-gel Method |
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| ZHONG Huan-zhou
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LIU Yuan
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SONG Xiao-ying
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XIE Zhi-wei
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YANG Yuan-zheng.Photoelectric Properties of CuAlO2 Powders Prepared by Sol-gel Method[J].Journal of Synthetic Crystals,2012,41(3):642-646. |
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| Authors: | ZHONG Huan-zhou LIU Yuan SONG Xiao-ying XIE Zhi-wei YANG Yuan-zheng |
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| Institution: | (Faculty of Materials and Energy,Guangdong University of Technology,Guangzhou 510006,China) |
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| Abstract: | The powders of CuAlO2 were synthesized by complexing inorganic sol-gel method,and with auto-combustion process.Formation process of CuAlO2,phase structure,microstructure were investigated by DSC-TGA,X-ray diffraction,scanning electron microscope.The results indicated that the synthesis temperature of CuAlO2 is about 1092 ℃,the nano-powders of delafossite-structured CuAlO2 could be obtained after sintered at 1100 ℃ for 2 h,its partical size is about 50-200 nm.The sample of CuAlO2 was p type semiconductor,its resistivity is about 45.5 Ω·cm,the optical band gap is about 3.75 eV. |
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| Keywords: | CuAlO2 sol-gel method p type conductor optical band gap |
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