Nonfaceted Growth of (111)-Oriented Epitaxial Alkali-Halide Crystals via an Ionic Liquid Flux in a Vacuum

被引:19
作者
Kato, Shun [1 ]
Takeyama, Yoko [1 ]
Maruyama, Shingo [1 ]
Matsumoto, Yuji [1 ]
机构
[1] Tokyo Inst Technol, Mat & Struct Lab, Midori Ku, Yokohama, Kanagawa 2268503, Japan
关键词
SURFACES;
D O I
10.1021/cg100493t
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Nonfaceted growth of (111)-oriented epitaxial KBr crystals on sapphire single crystal substrates has been achieved using a novel vacuum deposition method of flux-mediated epitaxy, involving the use of ionic liquids as a flux. It was found that the ionic liquid could act as a flux to promote the growth of KBr at higher growth temperatures and to stabilize its unstable polar (111) face with no faceting of the crystal surface. Even after evaporation of the remaining ionic liquid to remove it from the KBr crystals, the atomically flat (111) surface could be preserved without refaceting.
引用
收藏
页码:3608 / 3611
页数:4
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