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Title
Japanese: 
English:Fabrication of alloys and superlattices based on ZnO towards ultraviolet laser 
Author
Japanese: 大友 明, 川崎 雅司, 櫻井 洋介, 大久保 勇男, 白木 利佳, 吉田 泰彦, 安田 隆, 瀬川 勇三朗, 鯉沼 秀臣.  
English: A. Ohtomo, M. Kawasaki, Y. Sakurai, I. Ohkubo, R. Shiroki, Y. Yoshida, T. Yasuda, Y. Segawa, H. Koinuma.  
Language English 
Journal/Book name
Japanese: 
English:Materials Science and Engineering B-Solid State Materials for Advanced Technology 
Volume, Number, Page Vol. 56    No. 2-3    pp. 263-266
Published date Nov. 1998 
Publisher
Japanese: 
English: 
Conference name
Japanese: 
English: 
Conference site
Japanese: 
English: 
Official URL <Go to ISI>://000077655700034
 
DOI https://doi.org/10.1016/S0921-5107(98)00218-9
Abstract We have grown epitaxial MgxZn1-xO alloy films and ZnO/MgxZn1-xO (x = 0.20) superlattices on sapphire(0001) substrates by laser molecular beam epitaxy and characterized their structures by X-ray diffraction. Single phase MgxZn1-xO could be obtained up to x = 0.33, whereas MgO impurity phase with (111) orientation segregated at x > 0.33. The bandgap of MgxZn1-xO was successfully controlled as verified by the photoluminescence peaks shifting 3.36 eV (x = 0) to 3.87 eV (x = 0.33). It was found that the structure of the superlattices was greatly improved by the use of a ZnO buffer layer on sapphire substrate prior to the deposition of superlattice. Small angle X-ray diffraction peaks corresponding to the period of the superlattices ranging from 8 to 18 nm could be clearly observed.

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