Effect of grain size on thermoelectric properties of CoSb3 compound
Year: 2005
Type: article
Abstract: The effects of grain size on thermoelectric properties of CoSb3 compound was investigated systematically. The results indicate that the lattice thermal conductivity κp of CoSb3 compound decreases significantly, the Seebeck coefficient α increases remarkably, and the band gap Eg increases and electrical conductivity σ decreases, when the grain size decrease from μm-scale to nano-scale. The dimensionless thermoelectric figure of merit ZT of CoSb3 compound with grain size of 200nm reaches 0.43 at 700K, about 4 times that of sample with grain size of 5000nm.
Source: Acta Physica Sinica
DOI: 10.7498/aps.54.5763
Authors: Yu Bo-Lin, Qi Qiong, Tang Xin-Feng, Zhang Qing-Jie, 武汉理工大学材料复合新技术国家重点实验室，武汉 430070
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: hybrid
OpenAlex ID: W1466322164