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《Journal of Synthetic Crystals》 2013-05
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Synthesis and Optical Properties of GaOOH and Ga_2O_3

LIANG Jian1,2,WANG Xiao-bin1,2,ZHANG Yan1,2,DONG Hai-liang1,2,LIU Hai-rui1,2,XU Bing-she1,2(1.Key Laboratory of Interface Science and Engineering in Advanced Materials,Ministry of Education,Taiyuan University of Technology, Taiyuan 030024,China;2.Shanxi Research Center of Advanced Materials Science and Technology,Taiyuan 030024,China)(Received 25 November 2012,accepted 4 January 2013)  
GaOOH precursors with different morphologies and sizes were synthesized by hydrothermal method.The products were characterized by XRD,SEM and the probable growth mechanism of GaOOH was analyzed.The pH values played a dominated role in adjusting GaOOH morphologies and had an effect on their crystallizations.The GaOOH precursors were calcined in air and transformed into α-Ga2O3 and β-Ga2O3 under 600 ℃ and 900 ℃,respectively.The samples after calcinations showed coincident morphology hereditability.Photoluminescence measurements(λex=250 nm) were conducted for the GaOOH and Ga2O3 samples and the emission peaks located at 415 nm and 465 nm when pH=5,however,at 370 nm and 465 nm for pH=3 and 8.
【Fund】: 长江学者和创新团队资助项目(IRT0972);; 国家自然科学基金(51002102);; 山西省自然科学基金(2011011022-1 2012011046-7);; 山西省研究生优秀创新项目(20113033)
【CateGory Index】: TN304
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