Thermoelectric properties of Al-doped ZnO as a promising oxide material for high-temperature thermoelectric conversion

1997 ◽  
Vol 7 (1) ◽  
pp. 85-90 ◽  
Author(s):  
Toshiki Tsubota ◽  
Michitaka Ohtaki ◽  
Koichi Eguchi ◽  
Hiromichi Arai
Keyword(s):  
High Temperature ◽  
Thermoelectric Properties ◽  
Oxide Material ◽  
Thermoelectric Conversion ◽  
Doped Zno

Enhanced high-temperature thermoelectric properties of Ce- and Dy-doped ZnO for power generation

Energy ◽  
2013 ◽  
Vol 54 ◽  
pp. 139-145 ◽  
Author(s):  
K. Park ◽  
H.K. Hwang ◽  
J.W. Seo ◽  
W.-S. Seo
Keyword(s):  
Power Generation ◽  
High Temperature ◽  
Thermoelectric Properties ◽  
Doped Zno

Microstructure and Thermoelectric Properties of Al-Doped ZnO Sintered Body

2010 ◽  
Vol 638-642 ◽  
pp. 2172-2177
Author(s):  
Noburo Shikatani ◽  
Tatsuya Misawa ◽  
Yuji Kawakami ◽  
Michihiro Ohta
Keyword(s):  
Thermal Conductivity ◽  
High Temperature ◽  
Thermoelectric Properties ◽  
Raw Material ◽  
Sintered Body ◽  
Electric Resistance ◽  
Entire Region ◽  
Low Resistance ◽  
High Power Consumption ◽  
Doped Zno

ZnO is heat-resistant and inexpensive, and the raw material of which is abundant, it is considered to be a good candidate thermoelectric material. Usually, a low-resistance n-type ZnO sintered body is obtained by doping 0.5-5 mol% Al2O3 followed by burning at a high temperature of approximately 1673K. However, this high-temperature burning has drawbacks, such as high power consumption and an increase in thermal conductivity with grain growth. Under these circumstances, we attempted to address these disadvantages. When ZnO was burned with Al as a dopant in an electric furnace at a temperature as low as approximately 1473K, ZnO with relatively good thermoelectric properties was obtained. In addition, the Al-doped sample showed lower electric resistance (332 K: 6.85×10-4Ωcm) than the Al2O3-doped sample, as determined on the basis of the resistance temperature characteristics of these samples. The causes of this low resistance may be as follows: 1) the metal-Al-mediated sample was densified by burning at a low temperature of approximately 1473K and 2) the Al distribution to the entire region of the ZnO bulk, resulting in the spread of Al solid-solution regions in the ZnO. We also found that the thermal conductivity decreased (973 K: 3.66 Wm-1K-1) in the Al-doped sample.

High-temperature charge transport and thermoelectric properties of a degenerately Al-doped ZnO nanocomposite

2012 ◽  
Vol 22 (29) ◽  
pp. 14633 ◽  
Author(s):  
Woo Hyun Nam ◽  
Young Soo Lim ◽  
Soon-Mok Choi ◽  
Won-Seon Seo ◽  
Jeong Yong Lee
Keyword(s):  
High Temperature ◽  
Charge Transport ◽  
Thermoelectric Properties ◽  
Doped Zno

High temperature thermoelectric properties of Nb-doped ZnO ceramics

2013 ◽  
Vol 74 (12) ◽  
pp. 1811-1815 ◽  
Author(s):  
N.N. Wang ◽  
H.X. Xin ◽  
D. Li ◽  
X.J. Li ◽  
J. Zhang ◽  
...  
Keyword(s):  
High Temperature ◽  
Thermoelectric Properties ◽  
Doped Zno ◽  
Zno Ceramics

Multiple doped ZnO with enhanced thermoelectric properties

2021 ◽  
Vol 41 (7) ◽  
pp. 4182-4188
Author(s):  
BeiBei Zhu ◽  
Cong Chen ◽  
ZhiChao Yao ◽  
JiaYi Chen ◽  
Chuang Jia ◽  
...  
Keyword(s):  
Thermoelectric Properties ◽  
Doped Zno

High-temperature thermoelectric properties of polycrystalline Zn1−x−yAlxTiyO ceramics

2007 ◽  
Vol 27 (2-3) ◽  
pp. 813-817 ◽  
Author(s):  
K. Park ◽  
K.Y. Ko ◽  
W.-S. Seo ◽  
W.-S. Cho ◽  
J.-G. Kim ◽  
...  
Keyword(s):  
High Temperature ◽  
Thermoelectric Properties
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