Growth of the 2-in-size bulk ZnO single crystals by the hydrothermal method
Growth of the 2-in-size bulk ZnO single crystals by the hydrothermal method
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DOI：
10.1016/j.jcrysgro.2003.08.019
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发表时间：
2004-01-02
影响因子：
1.8
通讯作者：
Fukuda, T
中科院分区：
文献类型：
--
作者：
Ohshima, E;Ogino, H;Fukuda, T
采用水热法结合铂内容器生长氧化锌单晶。成功地生长出了高纯度和透明的单晶，尺寸为50 x 50 x 15 mm 3。x射线衍射证实了水热生长ZnO晶体的结晶度高于化学气相输运法生长的工业ZnO衬底。晶体的+ c区无色，-c区呈淡绿色，这与晶体独特的残留杂质分布有关。在3.3 eV的光致发光光谱中，观察到从带边缘发出的强发射。另一方面，未观察到2.2 eV深能级的发射。这些结果清楚地表明，该研究为未来宽带隙器件应用的2英寸尺寸ZnO单晶的商业化提供了保证。(C) 2003 Elsevier B.V.版权所有
The hydrothermal method combined with a platinum inner container was applied to grow zinc oxide (ZnO) single crystals. High-purity and transparent single crystals with a large -size of 50 x 50 x 15 mm 3 were successfully grown. The higher crystallinity of the hydrothermally grown ZnO crystal compared with the commercial ZnO substrate grown by the chemical vapor transport method was confirmed by X-ray diffraction. The + c region of the crystal is colorless and the -c region of it is pale green, relating to the unique residual impurity distribution. In the photoluminescence spectrum, a strong emission from the band edge at 3.3 eV was observed. On the other hand, the emission from the deep level at 2.2 eV was not observed. These results clearly indicate that this study assures the commercialization of the 2-in-size ZnO single crystal for future wide band gap device applications. (C) 2003 Elsevier B.V. All rights reserved.