High thermoelectric performance of Nb-doped SrTiO 3 bulk materials with different doping levels

Nb-doped SrTiO 3 bulk materials with high quality are fabricated using a facile process. The doping level in SrTiO 3 is controlled in a doping range of 0–20 mol%. Thermoelectric response including electrical conductivity σ , Seebeck coefficient S , and thermal conductivity k has been investigated in...

Full description

Saved in:
Bibliographic Details
Published in:Journal of materials chemistry. C, Materials for optical and electronic devices Materials for optical and electronic devices, 2015, Vol.3 (43), p.11406-11411
Main Authors: Zhang, Boyu, Wang, Jun, Zou, Tao, Zhang, Shuai, Yaer, Xinba, Ding, Nan, Liu, Chengyan, Miao, Lei, Li, Yan, Wu, Yin
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Nb-doped SrTiO 3 bulk materials with high quality are fabricated using a facile process. The doping level in SrTiO 3 is controlled in a doping range of 0–20 mol%. Thermoelectric response including electrical conductivity σ , Seebeck coefficient S , and thermal conductivity k has been investigated in a high-temperature regime above 300 K. The ZT values show obvious doping-level dependences, in which the largest value as high as 0.37 at 1000 K and 0.40 at 1100 K is realized in the optimized doping range of 10–15 mol%. This is the first time such a remarkable thermoelectric performance was accomplished in electron-doped SrTiO 3 ceramics.
ISSN:2050-7526
2050-7534
DOI:10.1039/C5TC02016F