A Simple Synthesis and Characterization of PbTe Nano-Particles

被引：0

作者：

Liu, Hong-Quan ^{[1
]}

Hao, Fei-Xiang ^{[1
]}

Guo, Jie ^{[1
]}

Gu, Yi-Jie ^{[1
]}

He, Qing-Kun ^{[1
]}

Cui, Hong-Zhi ^{[1
]}

机构：

[1] Shandong Univ Sci & Technol, Coll Mat Sci & Engn, Qingdao, Peoples R China

来源：

2012 INTERNATIONAL CONFERENCE ON MANIPULATION, MANUFACTURING AND MEASUREMENT ON THE NANOSCALE (3M-NANO) | 2012年

关键词：

Chemical Synthesis; Nano-particles; PbTe; Morphology; THERMOELECTRIC PROPERTIES; HYDROTHERMAL SYNTHESIS; NANOCRYSTALS; TEMPERATURE;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

PbTe nanopowders with different morphology were prepared by a simple chemical synthesis. Similar cubic nanoparticles have been successfully synthesized by using Pb(NO3)(2) and Na2TeO3 as the precursors, and NaBH4 as the reductant. The single PbTe phase is confirmed from XRD pattern, and obvious width of XRD peaks occur. The size of powders is distributed from 20nm to 70nm in a typical process according to observation from SEM and TEM images. Based on HRTEM observation, PbTe nanopowders with an amorphous layer show polyhedron feature. In different crystallization stages, there is different morphology due to competition between surface energy and crystal face energy. The globular, polyhedron and cubic particles belongs to different growth stages, respectively. Possible growth mechanisms of PbTe were also discussed.

引用

页码：382 / 384

页数：3

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