Bismuth telluride hexagonal nanoplatelets and their two-step epitaxial growth
Bismuth telluride hexagonal nanoplatelets and their two-step epitaxial growth
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DOI：
10.1021/ja052286j
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发表时间：
2005-07-20
影响因子：
15
通讯作者：
Fang, JY
中科院分区：
文献类型：
--
作者：
Lu, WG;Ding, Y;Fang, JY
我们报告了一个合成的离散的，单晶的，无缺陷的，和六方晶系的Bi 2 Te 3纳米片使用高温有机溶液的方法，我们展示了两步外延生长的圆柱形串的Bi 2 Te 3纳米片的Te棒的表面上通过包装它们沿着c轴的顶部-底部-顶部-底部的顺序。这种类型的建立提供了额外的机会，从这样的量子限制材料，其中声子的边界散射预计将提高新的热电性能的探索。
We report a synthesis of discrete, single-crystal, defect-free, and hexagonal Bi2Te3 nanoplatelets using a high-temperature organic solution approach, and we demonstrate a two-step epitaxial growth of the cylindrical strings of Bi2Te3 nanoplatelets on the surface of the Te rod by packing them along c-axis in a top-bottom-top-bottom sequence. This type of building-up provides additional opportunity for the exploration of novel thermoelectric properties from such quantum-confined materials, in which the boundary scattering of phonons is anticipated to enhance.