Bismuth Telluride Hexagonal Nanoplatelets and Their Two-Step Epitaxial Growth

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• 作者：Weigang Lu ; Yong Ding ; Yuxi Chen ; Zhong Lin Wang ; and Jiye Fang
• 刊名：Journal of the American Chemical Society
• 出版年：2005
• 出版时间：July 20, 2005
• 年：2005
• 卷：127
• 期：28
• 页码：10112 - 10116
• 全文大小：486K
• 年卷期：v.127,no.28(July 20, 2005)
• ISSN：1520-5126

文摘

We report a synthesis of discrete, single-crystal, defect-free, and hexagonal Bi₂Te₃ nanoplateletsusing a high-temperature organic solution approach, and we demonstrate a two-step epitaxial growth ofthe cylindrical strings of Bi₂Te₃ nanoplatelets on the surface of the Te rod by packing them along c-axis ina top-bottom-top-bottom sequence. This type of building-up provides additional opportunity for theexploration of novel thermoelectric properties from such quantum-confined materials, in which the boundaryscattering of phonons is anticipated to enhance.