Yuichi Oshima
(National Institute for Materials Science)
;
Hiroyuki Ando
;
Takashi Shinohe
説明:
(abstract)We demonstrate that dislocation density in α-Ga2O3 epilayers is remarkably reduced via rapid growth at low temperatures by halide vapor phase epitaxy. The dislocation density was 4 x 108 cm-2 in an α-Ga2O3 epilayer grown on a (0001) sapphire substrate at a high growth rate of 34 μm/h and a low temperature of 463°C. The dislocation density was approximately 1/100 of that in an α-Ga2O3 layer grown with no measures. It is likely that three-dimensional surface morphology formed during the low-temperature rapid growth enhanced the bending of the dislocations to increase the chance of pair annihilation.
権利情報:
© 2023 The Japan Society of Applied Physics
This is an author-created, un-copyedited version of an article accepted for publication/published
in Applied Physics Express. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or
any version derived from it. The Version of Record is available online at https://doi.org/10.35848/1882-0786/acddca .
キーワード: α-Ga2O3, dislocation, HVPE
刊行年月日: 2023-06-01
出版者: IOP Publishing
掲載誌:
研究助成金:
原稿種別: 著者最終稿 (Accepted manuscript)
MDR DOI: https://doi.org/10.48505/nims.4397
公開URL: https://doi.org/10.35848/1882-0786/acddca
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更新時刻: 2024-06-23 08:30:11 +0900
MDRでの公開時刻: 2024-06-23 08:30:12 +0900
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