基于ZnO-PbF2高温溶液体系的相关系和析晶行为, 发展了一种通气诱导成核的助熔剂-坩埚下降法生长技术. 通过优化生长参数, 获得了尺寸为φ25mm×5mm的ZnO晶体. 该晶体具有纤锌矿结构, 晶格常数a=0.3252nm, b=0.5209nm. X射线定向确认其择优取向生长方向为[0001]. 实验结果表明, 助熔剂-坩埚下降法是ZnO晶体生长的一条新途径.
Base on the crystallization behavior of the ZnO-PbF2 system, a flux Bridgman growth technique with a gas cooling system was developed for the growth of ZnO crystal. By optimizing the growth parameters, transparent ZnO crystal with the size of φ25mm×5mm was obtained from the high temperature solutions. As-grown crystal has wurtzite structure with lattice parameters a=0.3252nm and b=0.5209nm, respectively. The preferred growth direction of the ZnO crystals is [0001] determined by X-ray orientation. The growth results show that the flux Bridgman method is a potential approach to grow large size ZnO crystals at low cost.
参考文献
| [1] | Robert F. Science, 1997, 276: 895--896. [2] Reynolds D C, Look D C, Jogai B. Solid State Communication, 1996, 99 (12): 873--875. [3] Liu L, Edgar J H. Materials Science and Engineering R, 2002, 37: 61--127. [4] Ntep J M, Hassani S Said, Lusson A, et al. Journal of Crystal Growth, 1999, 207: 30--34. [5] Ohshima Eriko, Oginoa Hiraku, Niikura Ikuo, et al. Journal of Crystal Growth, 2004, 260: 166--170. [6] XU Jia-yue, TONG Jian, SHI Min-li, et al. J. Inorg. Mater., 2003, 18 (2): 264--268. [7] Nielsen J W, Dearborn E F. J. Phys. Chem., 1962, 64: 1762--1763. [8] Chase A B, Judith Osmer A. J. Amer. Ceram. Soc., 1967, 50 (6): 325--328. [9] Sharma S D, Subhash Kashyap C. Journal of Crystal Growth, 1971, 10: 121--128. [10] Kunihiko Oka, Hajime Shibata, Satoshi Kashiwaya. Journal of Crystal Growth, 2002, 237-239: 509--513. [11] Li X H, Xu J Y, Li X M. Applied Physics A, 2006, 82: 373--376. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%