scholarly journals Large thermoelectric power factor at low temperatures in one-dimensional telluride Ta4SiTe4

2017 ◽  
Vol 110 (18) ◽  
pp. 183901 ◽  
Author(s):  
Takumi Inohara ◽  
Yoshihiko Okamoto ◽  
Youichi Yamakawa ◽  
Ai Yamakage ◽  
Koshi Takenaka
Keyword(s):  
Thermoelectric Power ◽  
Power Factor ◽  
Low Temperatures ◽  
Thermoelectric Power Factor ◽  
One Dimensional

Enhancement of thermoelectric power factor in CrSi2 film via Si:B addition

2015 ◽  
Vol 29 (27) ◽  
pp. 1550189
Author(s):  
Q. R. Hou ◽  
B. F. Gu ◽  
Y. B. Chen
Keyword(s):  
Electrical Resistivity ◽  
Thermoelectric Power ◽  
Raman Spectra ◽  
Power Factor ◽  
Low Temperatures ◽  
X Ray Diffraction ◽  
Thermoelectric Power Factor ◽  
X Ray ◽  
Large Enhancement ◽  
Diffraction Patterns

In this paper, we report a large enhancement in the thermoelectric power factor in CrSi2 film via Si:B (1 at.% B content) addition. The Si:B-enriched CrSi2 films are prepared by co-sputtering CrSi2 and heavily B-doped Si targets. Both X-ray diffraction patterns and Raman spectra confirm the formation of the crystalline phase CrSi2. Raman spectra also indicate the crystallization of the added Si:B. With the addition of Si:B, the electrical resistivity [Formula: see text] decreases especially at low temperatures while the Seebeck coefficient [Formula: see text] increases above 533 K. As a result, the thermoelectric power factor, [Formula: see text], is greatly enhanced and can reach [Formula: see text] at 583 K, which is much larger than that of the pure CrSi2 film.

PHONON-DRAG EFFECT OF ULTRA-THIN FeSi2 AND MnSi1.7/FeSi2 FILMS

2011 ◽  
Vol 25 (22) ◽  
pp. 1829-1838 ◽  
Author(s):  
Q. R. HOU ◽  
B. F. GU ◽  
Y. B. CHEN ◽  
Y. J. HE
Keyword(s):  
Electrical Resistivity ◽  
Seebeck Coefficient ◽  
Single Crystals ◽  
Thermoelectric Power ◽  
Power Factor ◽  
Low Temperatures ◽  
Room Temperature ◽  
Phonon Drag ◽  
Drag Effect ◽  
Thermoelectric Power Factor

Phonon-drag effect usually occurs in single crystals at very low temperatures (10–200 K). Strong phonon-drag effect is observed in ultra-thin β- FeSi 2 films at around room temperature. The Seebeck coefficient of a 23 nm-thick β- FeSi 2 film can reach -1.375 mV/K at 343 K. However, the thermoelectric power factor of the film is still small, only 0.42×10-3 W/m-K2, due to its large electrical resistivity. When a 27 nm-thick MnSi 1.7 film with low electrical resistivity is grown on it, the thermoelectric power factor of the MnSi 1.7 film can reach 1.5×10-3 W/m-K2 at around room temperature. This value is larger than that of bulk MnSi 1.7 material in the same temperature range.

One-dimensional behavior and high thermoelectric power factor in thin indium arsenide nanowires

2015 ◽  
Vol 106 (9) ◽  
pp. 093101 ◽  
Author(s):  
P. Mensch ◽  
S. Karg ◽  
V. Schmidt ◽  
B. Gotsmann ◽  
H. Schmid ◽  
...  
Keyword(s):  
Thermoelectric Power ◽  
Indium Arsenide ◽  
Power Factor ◽  
Thermoelectric Power Factor ◽  
One Dimensional

scholarly journals Large thermoelectric power factor in one-dimensional telluride Nb4SiTe4and substituted compounds

2018 ◽  
Vol 112 (17) ◽  
pp. 173905 ◽  
Author(s):  
Yoshihiko Okamoto ◽  
Taichi Wada ◽  
Youichi Yamakawa ◽  
Takumi Inohara ◽  
Koshi Takenaka
Keyword(s):  
Thermoelectric Power ◽  
Power Factor ◽  
Thermoelectric Power Factor ◽  
One Dimensional

scholarly journals Large thermoelectric power factor in whisker crystals of solid solutions of the one-dimensional tellurides Ta4SiTe4 and Nb4SiTe4

2020 ◽  
Vol 13 (12) ◽  
pp. 125505
Author(s):  
Yuma Yoshikawa ◽  
Taichi Wada ◽  
Yoshihiko Okamoto ◽  
Yasuhiro Abe ◽  
Koshi Takenaka
Keyword(s):  
Thermoelectric Power ◽  
Solid Solutions ◽  
Power Factor ◽  
Thermoelectric Power Factor ◽  
One Dimensional ◽  
Whisker Crystals ◽  
The One
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