Solid State Chemistry Approach to Advanced Thermoelectrics. Ternary and Quaternary Alkali Metal Bismuth Chalcogenides as Thermoelectric Materials

1998 ◽  
Vol 545 ◽  
Author(s):  
Mercouri G. Kanatzidis ◽  
Duck-Young Chung ◽  
Lykourgos Iordanidis ◽  
Kyoung-Shin Choi ◽  
Paul Brazis ◽  
...  
Keyword(s):  
Solid State ◽  
Alkali Metal ◽  
Charge Transport ◽  
Thermoelectric Materials ◽  
Solid State Chemistry ◽  
Exploratory Research ◽  
Next Generation ◽  
New Materials ◽  
Bismuth Chalcogenides ◽  
Solid State Structures

AbstractOur exploratory research to identify new promising candidates for next generation thermoelectric applications has produced several interesting new materials which are briefly described here. We present their compositions, solid state structures, properties and charge transport behavior. The compounds CsBi4Te6, β-K2Bi8Se13, Ba4Bi6Se13, Eu2Pb2Bi6Se13, KBi6.33S10, Eu2Pb2Bi4Se10, Ba2Pb2Bi6S13 and K1.25 Pb3.5Bi7.25Se15 are particularly noteworthy.

Searching for New Thermoelectrics in Chemically and Structurally Complex Bismuth Chalcogenides

1997 ◽  
Vol 478 ◽  
Author(s):  
Duck Young Chung ◽  
Tim Hogan ◽  
Jon Schindler ◽  
Lykourgos Iordanidis ◽  
Paul Brazis ◽  
...  
Keyword(s):  
Solid State ◽  
Thermoelectric Properties ◽  
Electronic Structures ◽  
Solid State Chemistry ◽  
Synthetic Approach ◽  
New Materials ◽  
Bismuth Chalcogenides ◽  
Thermal Conductivities

AbstractA solid state chemistry synthetic approach towards identifying new materials with potentially superior thermoelectric properties is presented. Materials with complex compositions and structures also have complex electronic structures which may give rise to high thermoelectric powers and at the same time possess low thermal conductivities. The structures and thermoelectric properties of several new promising compounds with K-Bi-Se, K-Bi-S, Ba-Bi- Te, Cs-Bi-Te, and Rb-Bi-Te are reported.

Modeling of Heat Transfer in Nanoscale Multilayer Solid-State Structures

2008 ◽  
Author(s):  
Shih-Kuo Wu ◽  
Ya-Wen Chou
Keyword(s):  
Thin Film ◽  
Heat Transfer ◽  
Thermal Conductivity ◽  
Solid State ◽  
Layer Thickness ◽  
Thermoelectric Materials ◽  
Radial Direction ◽  
Dissimilar Materials ◽  
Interface Condition ◽  
Solid State Structures

Modeling of heat transfer in nanoscale multilayer solid-state structures is presented in this article to seek a potential design of thermoelectric materials. The phonon radiative heat conduction equation is used to describe the heat transport behavior in nanoscale multilayer solid-state structures and the diffuse mismatch model is utilized to simulate the interface condition between two dissimilar materials. In this paper, the thermal conductivity of thin film superlattices, nano wire superlattices and nano tube superlattices were calculated. Then, size effects on the performance of thermoelectric micro coolers were examined in detail. The results show that the effective thermal conductivity of thermoelectric materials in superlattice structures decreases as the layer thickness decreases. In addition, the thermal conductivities of nano wire and nano tube superlattices are less than that of thin film superlattices when they have the same layer thickness. It is noted that the restriction on the radial direction not only decreases the thermal conductivity in radial direction but also in axial direction. Thus, nano wire and nano tube superlattices are potential materials for high performance thermoelectric devices.

scholarly journals Alkali Metal Picrate Complexes of “Crowned”-Phthalocyanines. Solid State Structures and Electrical Properties

1989 ◽  
Vol 93 (6) ◽  
pp. 702-707 ◽  
Author(s):  
O. E. Sielcken ◽  
H. C. A. van Lindert ◽  
W. Drenth ◽  
J. Schoonman ◽  
J. Schram ◽  
...  
Keyword(s):  
Solid State ◽  
Electrical Properties ◽  
Alkali Metal ◽  
Metal Picrate ◽  
Solid State Structures
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