| Growth and photoluminescence properties of inclined ZnO and ZnCoO thin films on SrTiO<sub>3</sub>（110） substrates |
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| 引用本文： | 白洪亮,刘国磊,贺树敏,颜世申,朱大鹏,郭红雨,冀子武,杨丰帆,陈延学,梅良模.Growth and photoluminescence properties of inclined ZnO and ZnCoO thin films on SrTiO3（110） substrates[J].中国物理 B,2012(5):635-639. |
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| 作者姓名： | 白洪亮 刘国磊 贺树敏 颜世申 朱大鹏 郭红雨 冀子武 杨丰帆 陈延学 梅良模 |
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| 基金项目： | Project supported by the National Basic Research Program of China (Grant No. 2009CB929202);the National Natural ScienceFoundation of China (Grant Nos. 10834001 and 51125004) |
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| 摘 要： | ZnO thin film growth prefers different orientations on the etched and unetched SrTiO 3(STO)(110) substrates.Inclined ZnO and cobalt-doped ZnO(ZnCoO) thin films are grown on unetched STO(110) substrates using oxygen plasma assisted molecular beam epitaxy,with the c-axis 42 inclined from the normal STO(110) surface.The growth geometries are ZnCoO100]//STO110] and ZnCoO111]//STO001].The low temperature photoluminescence spectra of the inclined ZnO and ZnCoO films are dominated by D 0 X emissions associated with A 0 X emissions,and the characteristic emissions for the 2 E(2G)→ 4A2(4F) transition of Co 2+ dopants and the relevant phonon-participated emissions are observed in the ZnCoO film,indicating the incorporation of Co 2+ ions at the lattice positions of the Zn 2+ ions.The c-axis inclined ZnCoO film shows ferromagnetic properties at room temperature
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| 关 键 词： | inclined ZnO SrTiO 3(110) photoluminescence |
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