Molecular Beam Epitaxy Growth of Single-Domain and High-Quality ZnO Layers on Nitrided (0001) Sapphire Surface

作者: Xinqiang Wang , Hiroyuki Iwaki , Masashi Murakami , Xiaolong Du , Yoshihiro Ishitani

DOI: 10.1143/JJAP.42.L99

关键词: DiffractionNitrogenLayer (electronics)CrystallographySingle domainNitridingOptoelectronicsSapphireFull width at half maximumMaterials scienceMolecular beam epitaxy

摘要: Nitridation of a (0001) sapphire substrate was used to eliminate the rotation domains and improve quality ZnO film grown by rf-plasma-assisted molecular beam epitaxy. It found that very thin nitrogen polar AlN layer, which formed nitridation, acted as template for following growth film, resulting in elimination were often observed case without nitridation. The full width at half maximum (002) (102) X-ray diffraction ω-scans decreased from 912 2870 arcsec 95 445 arcsec, respectively, due effect Based on this, its optical also improved.

参考文章(6)
A. Yoshikawa, K. Xu, Y. Taniyasu, K. Takahashi, Spectroscopic Ellipsometry in‐situ Monitoring/Control of GaN Epitaxial Growth in MBE and MOVPE Physica Status Solidi (a). ,vol. 190, pp. 33- 41 ,(2002) , 10.1002/1521-396X(200203)190:1<33::AID-PSSA33>3.0.CO;2-I
D.L Medlin, K.F McCarty, R.Q Hwang, S.E Guthrie, M.I Baskes, Orientation relationships in heteroepitaxial aluminum films on sapphire Thin Solid Films. ,vol. 299, pp. 110- 114 ,(1997) , 10.1016/S0040-6090(96)09393-5
I. Ohkubo, A. Ohtomo, T. Ohnishi, Y. Mastumoto, H. Koinuma, M. Kawasaki, In-plane and polar orientations of ZnO thin films grown on atomically flat sapphire Surface Science. ,vol. 443, ,(1999) , 10.1016/S0039-6028(99)01024-9
D. M. Bagnall, Y. F. Chen, Z. Zhu, T. Yao, S. Koyama, M. Y. Shen, T. Goto, Optically pumped lasing of ZnO at room temperature Applied Physics Letters. ,vol. 70, pp. 2230- 2232 ,(1997) , 10.1063/1.118824
Z. K. Tang, G. K. L. Wong, P. Yu, M. Kawasaki, A. Ohtomo, H. Koinuma, Y. Segawa, Room-temperature ultraviolet laser emission from self-assembled ZnO microcrystallite thin films Applied Physics Letters. ,vol. 72, pp. 3270- 3272 ,(1998) , 10.1063/1.121620