GAO Zhen-jie, YANG Yuan-zheng, XIE Zhi-wei, WANG Yan-li. Structural and Photoluminescence Properties of Eu-doped ZnO Thin Films Grown by RF Magnetron Sputtering[J]. Chinese Journal of Luminescence, 2011,32(10): 1004-1008
GAO Zhen-jie, YANG Yuan-zheng, XIE Zhi-wei, WANG Yan-li. Structural and Photoluminescence Properties of Eu-doped ZnO Thin Films Grown by RF Magnetron Sputtering[J]. Chinese Journal of Luminescence, 2011,32(10): 1004-1008DOI:
Structural and Photoluminescence Properties of Eu-doped ZnO Thin Films Grown by RF Magnetron Sputtering
thin films were deposited on quartz substrates by radio frequency(RF) magnetron sputtering. The lattice structure
surface morphology and photoluminescence (PL) properties were analyzed by X-ray diffractometer (XRD)
scanning electron microscope (SEM) and spectrometer
respectively. Effects of RF sputtering power and heat treatment on the structure and PL properties were studied in detail. The results showed that all the ZnO films had a hexagonal wurtzite structure and a higher RF sputtering power was beneficial to (002) preferred orientation. The films grains grew up as the RF sputtering power and heat treatment temperature increased. Moreover
we observed the phenomenon of electron transitions in intra-4f shell of Eu
3+
and energy transfer from ZnO host to the doped Eu
3+
in these ZnO∶Eu
3+
films. Besides
as the RF sputtering power increased and after annealed at 780 ℃
the PL properties of ZnO∶Eu
3+
films were obviously improved.
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references
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