Structural, morphological and optical properties of ZnO thin films grown on gamma-LiAlO2 substrate by pulsed laser deposition
文献类型:期刊论文
作者 | Zou J(邹军) ; Zhou SM(周圣明) ; Zhang X ; Su FL ; Li XM ; Xu J(徐军) |
刊名 | j. mater. sci. technol.
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出版日期 | 2005 |
卷号 | 21期号:4页码:549 |
关键词 | gamma-LiAlO2 ZnO photo luminescence (PL) spectra thin film |
ISSN号 | 1005-0302 |
中文摘要 | zno thin films were deposited on the substrates of (100) gamma-lialo2 at 400, 550 and 700 degrees c using pulsed laser deposition (pld) with the fixed oxygen pressure of 20 pa, respectively. when the substrate temperature is 400 degrees c, the grain size of the film is less than 1 mu m observed by leitz microscope and measured by x-ray diffraction (xrd). as the substrate temperature increases to 550 degrees c, highly-preferred c-orientation and high-quality zno film can be attained. while the substrate temperature rises to 700 degrees c, more defects appears on the surface of film and the zno films become polycrystalline again possibly because more li of the substrate diffused into the zno film at high substrate temperature. the photoluminescence (pl) spectra of zno films at room temperature show the blue emission peaks centered at 430 nm. we suggest that the blue emission corresponds to the electron transition from the level of interstitial zn to the valence band. meanwhile, the films grown on gamma-lialo2 (lao) exhibit green emission centered at 540 nm, which seemed to be ascribed to excess zinc and/or oxygen vacancy in the zno films caused by diffusion of li. from the substrates into the films during the deposition. |
学科主题 | 光学材料;晶体 |
收录类别 | EI |
语种 | 英语 |
WOS记录号 | WOS:000230978600024 |
公开日期 | 2009-09-24 |
源URL | [http://ir.siom.ac.cn/handle/181231/5763] ![]() |
专题 | 上海光学精密机械研究所_激光与光电子功能材料研发中心 |
推荐引用方式 GB/T 7714 | Zou J,Zhou SM,Zhang X,et al. Structural, morphological and optical properties of ZnO thin films grown on gamma-LiAlO2 substrate by pulsed laser deposition[J]. j. mater. sci. technol.,2005,21(4):549, 551. |
APA | 邹军,周圣明,Zhang X,Su FL,Li XM,&徐军.(2005).Structural, morphological and optical properties of ZnO thin films grown on gamma-LiAlO2 substrate by pulsed laser deposition.j. mater. sci. technol.,21(4),549. |
MLA | 邹军,et al."Structural, morphological and optical properties of ZnO thin films grown on gamma-LiAlO2 substrate by pulsed laser deposition".j. mater. sci. technol. 21.4(2005):549. |
入库方式: OAI收割
来源:上海光学精密机械研究所
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