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ZnO单晶的KOH碱液法生长和表征(英文)

GROWTH AND CHARACTERIZATION OF ZnO SINGLE CRYSTALS WITH HYDROUS KOH MELT METHOD

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【作者】 张素芳王继扬姚淑华BOUGHTON Robert I郑昌成徐士杰

【Author】 ZHANG Sufang1,2,WANG Jiyang1,YAO Shuhua1,BOUGHTON Robert I3,ZHENG Changcheng4,XU Shijie4 (1.State Key Laboratory of Crystal Materials,Shandong University,Jinan 250100,China;2.Department of Chemistry,Hengshui University,Hengshui 053000,Hebei,China;3.Department of Physics and Astronomy,Bowling Green State University,Bowling Green 43403,Ohio,America;4.Department of Physics,The University of Hong Kong,Hong Kong 999077,China)

【机构】 山东大学晶体材料国家重点实验室衡水学院化工学院博林格林州立大学天文和物理学系香港大学物理系

【摘要】 采用自发成核方法,以KOH碱液作助熔剂,在银、镍和铁坩埚中分别生长了透明、棕绿色和棕色的纤维锌矿氧化锌单晶。X射线衍射和电感耦合等离子体原子发射光谱分析表明:晶体的颜色与所含的杂质有关,这些杂质来源于所使用的坩埚。采用光致发光(photoluminescence,PL)光谱对所生长的晶体进行了表征,结果显示,从银坩埚中生长的氧化锌晶体质量较高,其室温下用325nm波长光激发的PL光谱显示381nm强的紫外发射峰。在此基础上,从200mL银坩埚中生长出了尺寸为φ3mm×34mm氧化锌晶体。

【Abstract】 Transparent,brown-green and brown wurtzite zinc oxide (ZnO) single crystals were grown in silver,nickel and iron crucibles separately by the spontaneous nucleation method using hydrous KOH melt as flux.The analysis results of X-ray diffraction and inductively coupled plasma atomic emission spectrometry indicate that the color of the crystals is related to the impurities contained in them that come from the crucibles.In addition,photoluminescence (PL) spectrometry was also employed to characterize the crystals.The results exhibite that the ZnO crystals grown from the silver crucible have high quality,and its PL spectrum excitated by wavelength of 325 nm at room temperature displays the strong ultraviolet emission at 381 nm from the band edge.On this basis,a large ZnO crystal 3 mm in diameter and 34 mm long was grown in a 200 mL silver crucible.

【基金】 国家重大基础研究计划(973)(2004CB619002);自然科学基金(50872066);山东省优秀中青年奖励基金(2006BS04023)资助项目
  • 【文献出处】 硅酸盐学报 ,Journal of the Chinese Ceramic Society , 编辑部邮箱 ,2010年02期
  • 【分类号】O782
  • 【被引频次】3
  • 【下载频次】223
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