蓝宝石
退火(玻璃)
材料科学
大气温度范围
航程(航空)
光电子学
凝聚态物理
纳米技术
光学
物理
冶金
复合材料
热力学
激光器
作者
Takashi Yatsui,Kazunori Kuribara,Tsuyoshi Sekitani,Takao Someya,Mamoru Yoshimoto
标识
DOI:10.1088/0022-3727/49/11/115302
摘要
High-quality single-crystalline sapphire is used to prepare various semiconductors because of its thermal stability. Here, we applied the tempering technique, which is well known in the production of chocolate, to prepare a sapphire substrate. Surprisingly, we successfully realised millimetre-range ordering of the atomic step of the sapphire substrate. We also obtained a sapphire atomic step with nanometre-scale uniformity in the terrace width and atomic-step height. Such sapphire substrates will find applications in the preparation of various semiconductors and devices.
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