文献类型：期刊文献

英文题名：A Study on Crystallization Kinetics of Thermoelectric Bi2Se3 Crystals in Ge-Se-Bi Chalcogenide Glasses by Differential Scanning Calorimeter

作者：Liu, Yinyao[1];Yuan, Shuanglong[1];Xie, Jun[1];Shangguan, Futiao[1];Ren, Jing[1];Chen, Guorong[1]

机构：[1]E China Univ Sci & Technol, Sch Mat Sci & Engn, Minist Educ, Key Lab Ultrafine Mat, Shanghai 200237, Peoples R China

年份：2013

卷号：96

期号：7

起止页码：2141

外文期刊名：JOURNAL OF THE AMERICAN CERAMIC SOCIETY

收录：;EI(收录号：20133016528007);WOS:【SCI-EXPANDED(收录号:WOS:000327187800078)】；

基金：This study was supported by Shanghai Leading Academic Discipline Project (no. B502), Shanghai Key Laboratory Project (08DZ2230500), Doctoral Fund of Ministry of Education of China (20120074110018) and the National Natural Science Foundation of China (NSFC 51072052).

语种：英文

外文关键词：Differential scanning calorimetry - Bismuth compounds - Glass ceramics - Crystalline materials - Crystallization kinetics - Activation energy

摘要：Novel glass-ceramics with embedded thermoelectric Bi2Se3 crystals were prepared from glass matrices in the Ge20Se100-xBix (x=5, 10, 12mol%) system. Based on DSC results performed at different heating rates, characteristic activation energies (E-c) and Avrami exponents (n) were obtained and analyzed by using Kissinger's relation, Ozawa's method, Augis-Bennett approximation and Matusita-Sakka theory. XRD results showed that pure Bi2Se3 crystalline phase precipitated upon annealing at different temperatures for various time. The crystal size and crystalline fraction in the samples could be tuned by controlling the annealing time.