scholarly journals Effect of microstructure on thermoelectric conversion efficiency in metastable δ-phase AgSbTe2

2021 ◽  
pp. 117443
Author(s):  
Jae Ki Lee ◽  
Byungki Ryu ◽  
Sungjin Park ◽  
Ji Hee Son ◽  
Jongho Park ◽  
...  
Carbon ◽  
2021 ◽  
Vol 176 ◽  
pp. 52-60
Author(s):  
Chunfeng Cui ◽  
Tao Ouyang ◽  
Chao Tang ◽  
Chaoyu He ◽  
Jin Li ◽  
...  

2019 ◽  
Vol 12 (3) ◽  
pp. 965-971 ◽  
Author(s):  
Kazuki Imasato ◽  
Stephen Dongmin Kang ◽  
G. Jeffrey Snyder

An n-type material with intrinsically higher thermoelectric conversion efficiency than Bi2Te3 in the low-grade waste-heat range has finally been developed.


2014 ◽  
Vol 605 ◽  
pp. 306-309
Author(s):  
Miae Kim ◽  
Ji Beom Kim ◽  
Joon Hyeon Jeon

Lithium-ammonia (Li-NH3) solutions are possible to be successfully made under the vacuum condition but there still remains a problem of undergoing stable and reliable decomposition in vacuum for high-efficiency thermoelectric power generation. This paper describes a new method, which uses a tube giving pressure equilibrium between closed ends, for improving the thermoelectric conversion efficiency of Li-NH3solutions in vacuum. Thermoelectric experimental results show that solution reaction in the tube proceeds stably and efficiently, and this potentially leads to the improved reversibility of the reaction for deriving the long-time, high-efficiency thermoelectric power.


Author(s):  
Robert Freer ◽  
Dursun Ekren ◽  
Tanmoy Ghosh ◽  
Kanishka Biswas ◽  
Pengfei Qiu ◽  
...  

Abstract This paper presents tables of key thermoelectric properties, which define thermoelectric conversion efficiency, for a wide range of inorganic materials. The 12 families of materials included in these tables are primarily selected on the basis of well established, internationally-recognised performance and their promise for current and future applications: Tellurides, Skutterudites, Half Heuslers, Zintls, Mg-Sb Antimonides, Clathrates, FeGa3–type materials, Actinides and Lanthanides, Oxides, Sulfides, Selenides, Silicides, Borides and Carbides. As thermoelectric properties vary with temperature, data are presented at room temperature to enable ready comparison, and also at a higher temperature appropriate to peak performance. An individual table of data and commentary are provided for each family of materials plus source references for all the data.


2020 ◽  
Vol 8 (9) ◽  
pp. 4790-4799 ◽  
Author(s):  
Jing Jiang ◽  
Hangtian Zhu ◽  
Yi Niu ◽  
Qing Zhu ◽  
Shaowei Song ◽  
...  

Average ZT of near unity provides a competitive thermoelectric conversion efficiency of ∼12% at low temperature difference of 400 K.


2018 ◽  
Vol 9 (1) ◽  
Author(s):  
Hangtian Zhu ◽  
Ran He ◽  
Jun Mao ◽  
Qing Zhu ◽  
Chunhua Li ◽  
...  

2010 ◽  
Vol 152-153 ◽  
pp. 768-771
Author(s):  
Ho Chang ◽  
Kung Ching Cho ◽  
Chih Jung Yu ◽  
Kuohsiu David Huang ◽  
Chieh Chen Chen

The paper deals with a coating CuO thin film coating on the surface of semiconductor thermoelements (Bi2Te3). In addition, the recycled external exhaust heat is used to generate electric power, further enhancing the thermoelectric conversion efficiency of the thermoelectric generator (TEG). By using electrophoresis deposition, a CuO nanofluid with high suspension stability and good dispersion is deposited on an aluminum foil at a thickness of 0.1mm. This film is conjugated with the top and base of a semiconductor thermoelements (Bi2Te3), and a thermoelectric generator is assembled in parallel with the modified thermoelectric material. Experimental results show that the CuO nanofilm coating on the surface of semiconductor thermoelements can enhance the overall heat conduction and thermoelectric conversion efficiency of thermoelectric generators by as much as 30%.


Sign in / Sign up

Export Citation Format

Share Document