Designing strontium titanate-based thermoelectrics: insight into defect chemistry mechanisms

2017 ◽  
Vol 5 (8) ◽  
pp. 3909-3922 ◽  
Author(s):  
Andrei V. Kovalevsky ◽  
Myriam H. Aguirre ◽  
Sascha Populoh ◽  
Sonia G. Patrício ◽  
Nuno M. Ferreira ◽  
...  
Keyword(s):  
Strontium Titanate ◽  
Thermoelectric Properties ◽  
Thermal Transport ◽  
Defect Chemistry ◽  
Insight Into

The work establishes a closer link between the defect chemistry and thermoelectric properties of strontium titanate-based materials, by uncovering particular roles of various defects in electronic and thermal transport.

Redox engineering of strontium titanate-based thermoelectrics

2020 ◽  
Vol 8 (15) ◽  
pp. 7317-7330 ◽  
Author(s):  
Andrei V. Kovalevsky ◽  
Kiryl V. Zakharchuk ◽  
Myriam H. Aguirre ◽  
Wenjie Xie ◽  
Sonia G. Patrício ◽  
...  
Keyword(s):  
Strontium Titanate ◽  
Thermoelectric Properties

This work explores how, by redox-sensitive substitutions, the thermoelectric properties of oxides can be tuned and enhanced.

Thermoelectric transport in conductive poly(3,4-ethylenedioxythiophene)

2021 ◽  
Author(s):  
Meng Li ◽  
Zuzhi Bai ◽  
Xiao Chen ◽  
Cong-Cong Liu ◽  
Jing-Kun Xu ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Thermoelectric Properties ◽  
Thermoelectric Material ◽  
Flexible Electronics ◽  
Theoretical Research ◽  
Thermoelectric Transport ◽  
The Future ◽  
Basic Physics ◽  
Insight Into ◽  
Theory And Experiment

Abstract Poly(3,4-ethylenedioxythiophene) (PEDOT) has proved its quite competitive thermoelectric properties in flexible electronics with its excellent electrical and mechanical properties. Since the early discovery of PEDOT, considerable experimental progress has been achieved in optimizing and improving thermoelectric properties as a promising organic thermoelectric material (OTE). Among them, theoretical research has made significant contributions to its development. Here the basic physics of conductive PEDOT are reviewed based on the combination of theory and experiment. Its purpose is to provide a new insight into the development of PEDOT, so as to effectively design and preparation of advanced thermoelectric PEDOT material in the future.

Defect chemistry and enhancement of thermoelectric performance in Ag-doped Sn1+δ−xAgxTe

2017 ◽  
Vol 5 (5) ◽  
pp. 2235-2242 ◽  
Author(s):  
Min Ho Lee ◽  
Do-Gyun Byeon ◽  
Jong-Soo Rhyee ◽  
Byungki Ryu
Keyword(s):  
Band Structure ◽  
Thermoelectric Properties ◽  
Electronic Band Structure ◽  
Defect Chemistry ◽  
Structure Calculation ◽  
Thermoelectric Performance ◽  
Band Structure Calculation ◽  
Electronic Band

We investigated the thermoelectric properties and electronic band structure calculation of Sn1−xAgxTe and Sn1.03−xAgxTe (x = 1, 3, 5, 7 mol%) compounds.

High Performance Mg2(Si,Sn) Solid Solutions: a Point Defect Chemistry Approach to Enhancing Thermoelectric Properties

2014 ◽  
Vol 24 (24) ◽  
pp. 3776-3781 ◽  
Author(s):  
Guangyu Jiang ◽  
Jian He ◽  
Tiejun Zhu ◽  
Chenguang Fu ◽  
Xiaohua Liu ◽  
...  
Keyword(s):  
Point Defect ◽  
Thermoelectric Properties ◽  
Solid Solutions ◽  
High Performance ◽  
Defect Chemistry

scholarly journals Thermoelectric Properties of Combustion-Synthesized Lanthanum-Doped Strontium Titanate

2007 ◽  
Vol 48 (5) ◽  
pp. 1079-1083 ◽  
Author(s):  
Lihua Zhang ◽  
Tsuyoshi Tosho ◽  
Noriyuki Okinaka ◽  
Tomohiro Akiyama
Keyword(s):  
Strontium Titanate ◽  
Thermoelectric Properties

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.

Defect Chemistry, Phase Transitions, and Thermoelectric Properties of Ca1–xCexAg1–ySb (0 ≤ x ≤ 1; 0 ≤ y ≤ 1)

2017 ◽  
Vol 29 (7) ◽  
pp. 3324-3333 ◽  
Author(s):  
Xin Li ◽  
Min Zhu ◽  
Zhen Wu ◽  
Jia Guo ◽  
Xu-Tang Tao ◽  
...  
Keyword(s):  
Phase Transitions ◽  
Thermoelectric Properties ◽  
Defect Chemistry
Sign in / Sign up

Export Citation Format

Share Document