期刊
CRYSTAL GROWTH & DESIGN
卷 9, 期 3, 页码 1375-1377出版社
AMER CHEMICAL SOC
DOI: 10.1021/cg800599r
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We report the synthesis and characterization of a unique US architecture made of two intersecting ribbons that form a ridge-shaped bicrystalline US nanoribbon via simple thermal evaporation of US powder. The US bicrystalline nanoribbons have a tapering width decreasing from 600 to 50 nm and lengths of several tens of micrometers. The nanostructures show strong band gap emission and weak defect-related emission. Zigzag US bicrystalline nanoribbons are occasionally formed at the tip region,
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