High Temperature Thermoelectric Properties of Strontium Titanate Thin Films with Oxygen Vacancy and Niobium Doping

2013 ◽  
Vol 5 (15) ◽  
pp. 7268-7273 ◽  
Author(s):  
S. R. Sarath Kumar ◽  
Abeer Z. Barasheed ◽  
H. N. Alshareef
Keyword(s):  
Thin Films ◽  
High Temperature ◽  
Oxygen Vacancy ◽  
Strontium Titanate ◽  
Thermoelectric Properties ◽  
Niobium Doping

Effect of TiO2 additive on thermoelectric properties of SrTiO3

2019 ◽  
Vol 13 (02) ◽  
pp. 2051001
Author(s):  
Wei-Ying Yang ◽  
Ke-Xian Wang ◽  
Zheng Cao ◽  
Hao-Yang Yu ◽  
Xiao-Bo Ma ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Electrical Conductivity ◽  
High Temperature ◽  
Seebeck Coefficient ◽  
Strontium Titanate ◽  
Thermoelectric Properties ◽  
Waste Heat ◽  
Molar Ratio ◽  
Composite Powders ◽  
The Impact

Strontium titanate ([Formula: see text] has the advantages of being non-toxic, environmentally friendly and high-temperature stable, and has potential application in waste heat power generation at medium and high temperature. To explore the impact of TiO2 on the thermoelectric properties of SrTiO3, we synthesized TiO2/La10Nbb10-STO composite powders by hydrothermal method using precursor solution of 10[Formula: see text]mol.% La and 10[Formula: see text]mol.% Nb co-doped STO (La10Nb10-STO) containing TiO2 nanopowders with different molar ratio. After cold pressing and sintering, composite bulk materials were obtained, and their microstructure and thermoelectric transport properties were analyzed. With the increasing TiO2, although the thermal conductivity of TiO2/La10Nb10-STO composite decreased and the Seebeck coefficient increased, the minimum thermal conductivity and the maximum Seebeck coefficient were 2.54[Formula: see text][Formula: see text][Formula: see text] and 215[Formula: see text][Formula: see text]V[Formula: see text][Formula: see text], respectively, at 1000[Formula: see text]K, but the power factor decreased at high temperature due to the apparent decrease of electrical conductivity, resulting in the ZT values being lower than that of La0Nb10-STO without TiO2 addition at high temperature. Significantly, the addition of TiO2 can improve the thermoelectric performance of strontium titanate at low temperature. This approach is expected to improve the ZT of SrTiO3-based thermoelectric material through additional controlling of electrical conductivity.

Effect of niobium doping on the microstructure and electrical properties of strontium titanate thin films for semiconductor memory application

1999 ◽  
Vol 75 (14) ◽  
pp. 2123-2125 ◽  
Author(s):  
Sundararaman Gopalan ◽  
Chun-Hui Wong ◽  
Venkatasubramani Balu ◽  
Jian-Hung Lee ◽  
Jeong H. Han ◽  
...  
Keyword(s):  
Thin Films ◽  
Electrical Properties ◽  
Strontium Titanate ◽  
Semiconductor Memory ◽  
Niobium Doping

Doping site dependent thermoelectric properties of epitaxial strontium titanate thin films

2014 ◽  
Vol 2 (45) ◽  
pp. 9712-9719 ◽  
Author(s):  
A. I. Abutaha ◽  
S. R. Sarath Kumar ◽  
Arash Mehdizadeh Dehkordi ◽  
Terry M. Tritt ◽  
H. N. Alshareef
Keyword(s):  
Thin Films ◽  
Strontium Titanate ◽  
Thermoelectric Properties

High temperature thermoelectric properties of highly c -axis oriented Bi 2 Sr 2 Co 2 O y thin films fabricated by pulsed laser deposition

2012 ◽  
Vol 21 (8) ◽  
pp. 087306 ◽  
Author(s):  
Shan-Shan Chen ◽  
Shu-Fang Wang ◽  
Fu-Qiang Liu ◽  
Guo-Ying Yan ◽  
Jing-Chun Chen ◽  
...  
Keyword(s):  
Thin Films ◽  
High Temperature ◽  
Pulsed Laser Deposition ◽  
Thermoelectric Properties ◽  
Pulsed Laser ◽  
Laser Deposition

The influence of the local oxygen vacancy concentration on the piezoresponse of strontium titanate thin films

Nanoscale ◽  
2015 ◽  
Vol 7 (34) ◽  
pp. 14351-14357 ◽  
Author(s):  
Michael Andrä ◽  
Felix Gunkel ◽  
Christoph Bäumer ◽  
Chencheng Xu ◽  
Regina Dittmann ◽  
...  
Keyword(s):  
Thin Films ◽  
Oxygen Vacancy ◽  
Strontium Titanate ◽  
Vacancy Concentration ◽  
Oxygen Vacancy Concentration ◽  
Local Oxygen

High temperature thermoelectric properties of nitrogen doped ITO thin films

Vacuum ◽  
2020 ◽  
Vol 172 ◽  
pp. 109054 ◽  
Author(s):  
Xiaohui Zhao ◽  
Ruolan Wang ◽  
Yang Liu ◽  
Xinwu Deng ◽  
Hongchuan Jiang ◽  
...  
Keyword(s):  
Thin Films ◽  
High Temperature ◽  
Thermoelectric Properties ◽  
Nitrogen Doped ◽  
Ito Thin Films

scholarly journals Thermoelectric Properties of Fe2VAl-Based Thin-Films Deposited at High Temperature

2016 ◽  
Vol 57 (9) ◽  
pp. 1628-1632 ◽  
Author(s):  
Satoshi Hiroi ◽  
Masashi Mikami ◽  
Tsunehiro Takeuchi
Keyword(s):  
Thin Films ◽  
High Temperature ◽  
Thermoelectric Properties
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