DocumentCode :
2214288
Title :
Ag9TlTe5 and AgTlTe: high ZT materials with extremely low thermal conductivity
Author :
Kurosaki, Ken ; Kosuga, Atsuko ; Goto, Keita ; Muta, Hiroaki ; Yamanaka, Shinsuke
Author_Institution :
Graduate Sch. of Eng., Osaka Univ., Japan
fYear :
2005
fDate :
19-23 June 2005
Firstpage :
323
Lastpage :
326
Abstract :
We have studied the thermoelectric properties Ag9TlTe5 and AgTlTe. The thallium compounds have extremely low thermal conductivities around 0.25 Wm-1K-1 from room temperature to about 700 K. The thallium compounds indicate very high ZT values; especially the highest ZT value of Ag9TlTe5 is 1.23 obtained at 700 K. Ag9TlTe5 is a unique material combining extremely low thermal conductivity and relatively low electrical resistivity.
Keywords :
electrical resistivity; silver compounds; thallium compounds; thermal conductivity; thermoelectricity; 700 K; Ag9TlTe5; AgTlTe; electrical resistivity; thallium compounds; thermal conductivity; thermoelectric properties; Atmospheric measurements; Conducting materials; Electric resistance; Power engineering and energy; Tellurium; Temperature; Thermal conductivity; Thermal resistance; Thermoelectricity; X-ray diffraction;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Thermoelectrics, 2005. ICT 2005. 24th International Conference on
ISSN :
1094-2734
Print_ISBN :
0-7803-9552-2
Type :
conf
DOI :
10.1109/ICT.2005.1519949
Filename :
1519949
Link To Document :
https://search.ricest.ac.ir/dl/search/defaultta.aspx?DTC=49&DC=2214288
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