@article{b5be6993c1da43f39f4ea5847cf20a1d,
title = "Surface Texture and Crystallinity Variation of ZnTe Epilayers Grown on the Step-Terrace Structure of the Sapphire Substrate",
abstract = "ZnTe/sapphire heterostructures were focused, and ZnTe thin films were prepared on highly mismatched sapphire substrates by molecular beam epitaxy. A sapphire substrate possessing an atomically-smooth step-terrace structure was used to improve the crystallinity and morphology of the produced ZnTe film. The growth mode of the ZnTe thin film on a sapphire substrate with an atomically-smooth step-terrace structure was found to shift to a two-dimensional growth mode, and a ZnTe thin film possessing a flat surface was obtained. The crystallographic properties of the ZnTe film suggested that the resulting layer consisted of a single (111)-oriented domain. The photoluminescence property was also improved, and the interface lattice alignment between the ZnTe and sapphire was also affected by the atomically-smooth step-terrace structure.",
keywords = "Sapphire, molecular beam epitaxy, step-terrace structure, x-ray diffraction, zinc telluride",
author = "Taizo Nakasu and Takeru Kizu and Sotaro Yamashita and Takayuki Aiba and Shota Hattori and Sun, {Wei Che} and Kosuke Taguri and Fukino Kazami and Yuki Hashimoto and Shun Ozaki and Masakazu Kobayashi and Toshiaki Asahi",
note = "Funding Information: This work was supported in part by the Waseda University Research Initiatives, ?Early Bird? grant for young researchers at the Waseda Research Institute for Science and Engineering, by the Wa- Fig. 6. (a) TEM image of the interface region observed from the [10-10] direction of sapphire. High-resolution TEM images observed from the (b) [10-10] and (c) [11-20] directions of sapphire. Fig. 7. Low-temperature PL spectra of the ZnTe film grown on the atomically-smooth step-terrace structured substrate, and conventional substrate. Surface Texture and Crystallinity Variation of ZnTe Epilayers Grown on the Step-Terrace Structure of the Sapphire Substrate 2131 This work was supported in part by the Waseda University Research Initiatives, ?Early Bird? grant for young researchers at the Waseda Research Institute for Science and Engineering, by the Wa- Fig. 6. (a) TEM image of the interface region observed from the [10-10] direction of sapphire. High-resolution TEM images observed from the (b) [10-10] and (c) [11-20] directions of sapphire. Fig. 7. Low-temperature PL spectra of the ZnTe film grown on the atomically-smooth step-terrace structured substrate, and conventional substrate. Surface Texture and Crystallinity Variation of ZnTe Epilayers Grown on the Step-Terrace Structure of the Sapphire Substrate 2131. Publisher Copyright: {\textcopyright} 2016, The Minerals, Metals & Materials Society. Copyright: Copyright 2018 Elsevier B.V., All rights reserved.",
year = "2016",
month = apr,
day = "1",
doi = "10.1007/s11664-016-4386-8",
language = "English",
volume = "45",
pages = "2127--2132",
journal = "Journal of Electronic Materials",
issn = "0361-5235",
publisher = "Springer New York",
number = "4",
}