Effect of Substrate Temperature on the Structural and Raman Properties of Ag-Doped ZnO Films
WANG Li-Na1,2, HU Li-Zhong1,2, ZHANG He-Qiu1,2**, QIU Yu1,2, LANG Ye1,2, LIU Guo-Qiang1,2, QU Guang-Wei1,2, JI Jiu-Yu1,2, MA Jin-Xue1,2
1School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116024 2The Key Laboratory for Micro/Nano Technology and System of Liaoning Province, Dalian University of Technology, Dalian 116024
Effect of Substrate Temperature on the Structural and Raman Properties of Ag-Doped ZnO Films
WANG Li-Na1,2, HU Li-Zhong1,2, ZHANG He-Qiu1,2**, QIU Yu1,2, LANG Ye1,2, LIU Guo-Qiang1,2, QU Guang-Wei1,2, JI Jiu-Yu1,2, MA Jin-Xue1,2
1School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116024 2The Key Laboratory for Micro/Nano Technology and System of Liaoning Province, Dalian University of Technology, Dalian 116024
摘要Ag-doped ZnO (ZnO:Ag) films are prepared on c-plane sapphire substrates by pulsed laser deposition at different substrate temperatures. The effect of substrate temperature on the ZnO:Ag film is studied in detail by EDX, XRD and Raman spectroscopy. The results reveal that raising the substrate temperature is beneficial for incorporating Ag into ZnO:Ag films in the range of our experimental temperatures and a number of Ag atoms incorporation into ZnO:Ag films may cause the (002) peak positions of the XRD spectra shift to a lower angle direction, but hardly affect the c−axis orientation of the films. The (002) peak shift ought to be due to the increase of lattice constant in the c−axis direction caused by the partial substitution of Zn2+ ions by Ag+ ions. In addition, a local vibrational mode (LVM) at 492 cm−1 induced by doping Ag occurred in the Raman spectra of all the ZnO:Ag films and its peak position hardly shifted with increasing substrate temperature. It means that the LVM can act as an indication of Ag incorporation into ZnO:Ag film.
Abstract：Ag-doped ZnO (ZnO:Ag) films are prepared on c-plane sapphire substrates by pulsed laser deposition at different substrate temperatures. The effect of substrate temperature on the ZnO:Ag film is studied in detail by EDX, XRD and Raman spectroscopy. The results reveal that raising the substrate temperature is beneficial for incorporating Ag into ZnO:Ag films in the range of our experimental temperatures and a number of Ag atoms incorporation into ZnO:Ag films may cause the (002) peak positions of the XRD spectra shift to a lower angle direction, but hardly affect the c−axis orientation of the films. The (002) peak shift ought to be due to the increase of lattice constant in the c−axis direction caused by the partial substitution of Zn2+ ions by Ag+ ions. In addition, a local vibrational mode (LVM) at 492 cm−1 induced by doping Ag occurred in the Raman spectra of all the ZnO:Ag films and its peak position hardly shifted with increasing substrate temperature. It means that the LVM can act as an indication of Ag incorporation into ZnO:Ag film.
WANG Li-Na;HU Li-Zhong;ZHANG He-Qiu;**;QIU Yu;LANG Ye;LIU Guo-Qiang;QU Guang-Wei;JI Jiu-Yu;MA Jin-Xue;. Effect of Substrate Temperature on the Structural and Raman Properties of Ag-Doped ZnO Films[J]. 中国物理快报, 2012, 29(1): 17302-017302.
WANG Li-Na, HU Li-Zhong, ZHANG He-Qiu, **, QIU Yu, LANG Ye, LIU Guo-Qiang, QU Guang-Wei, JI Jiu-Yu, MA Jin-Xue,. Effect of Substrate Temperature on the Structural and Raman Properties of Ag-Doped ZnO Films. Chin. Phys. Lett., 2012, 29(1): 17302-017302.
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