Facile Chemical Synthesis of Nanocrystalline Thermoelectric Alloys Based on Bi-Sb-Te-Se

被引：54

作者：

Datta, Anuja ^{[1
]}

Paul, Jagannath ^{[1
]}

Kar, Arik ^{[2
]}

Patra, Amitava ^{[2
]}

Sun, Zhengliang ^{[3
]}

Chen, Lidong ^{[3
]}

Martin, Joshua ^{[4
]}

Nolas, George S. ^{[1
]}

机构：

[1] Univ S Florida, Dept Phys, Tampa, FL 33620 USA

[2] Indian Assoc Cultivat Sci, Dept Mat Sci, Kolkata 700032, India

[3] Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China

[4] NIST, Div Ceram, Gaithersburg, MD 20899 USA

来源：

CRYSTAL GROWTH & DESIGN | 2010年 / 10卷 / 09期

基金：

美国国家科学基金会;

关键词：

BISMUTH TELLURIDE NANOPARTICLES; ANTIMONY TELLURIDE; SOLVOTHERMAL SYNTHESIS; HYDROTHERMAL SYNTHESIS; TRANSPORT-PROPERTIES; MERIT; BULK; CONDUCTIVITY; PERFORMANCE; SB2TE3;

D O I：

10.1021/cg100560s

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

High yield syntheses of size-confined Bi2Te3 and Sb2Te3 nanocrystals and nanoflakes, and their alloys, were carried out by a facile glycol-mediated solvothermal process. Phase purity and good crystalline quality were achieved for all alloy compositions by this synthesis process. The isotropically and anisotropically shaped nanocrystals were obtained without using any capping molecule, template, or ligand. Plausible growth mechanisms have been proposed. Densification via spark plasma sintering allowed for dense bulk polycrystalline specimens with nonagglomerated nanograins. This work is of interest in the context of research toward enhancing the thermoelectric properties of these materials. The synthesis process may be modified and extended to design nanostructures of thermoelectric materials with related crystal structures.

引用

页码：3983 / 3989

页数：7

共 47 条

[1] Cooling, heating, generating power, and recovering waste heat with thermoelectric systems [J].