Strain and grain size effects on thermal transport in highly-oriented nanocrystalline bismuth antimony telluride thin films

2014 ◽  
Vol 76 ◽  
pp. 376-384 ◽  
Author(s):  
Masayuki Takashiri ◽  
Saburo Tanaka ◽  
Harutoshi Hagino ◽  
Koji Miyazaki
Keyword(s):  
Thin Films ◽  
Grain Size ◽  
Thermal Transport ◽  
Size Effects ◽  
Antimony Telluride ◽  
Bismuth Antimony Telluride ◽  
Bismuth Antimony ◽  
Grain Size Effects

Thickness and Grain Size Effects on Thermal Transport of Post-Annealed Antimony Telluride Thin Films

2015 ◽  
Vol 7 (8) ◽  
pp. 1594-1598 ◽  
Author(s):  
Won-Yong Lee ◽  
No-Won Park ◽  
Dong-Joo Kim ◽  
Soon-Gil Yoon ◽  
Jung-Hyuk Koh ◽  
...  
Keyword(s):  
Thin Films ◽  
Grain Size ◽  
Thermal Transport ◽  
Size Effects ◽  
Antimony Telluride ◽  
Grain Size Effects

Studies of grain size effects in rf sputtered CdS thin films

1996 ◽  
Vol 79 (12) ◽  
pp. 9105-9109 ◽  
Author(s):  
C. T. Tsai ◽  
D. S. Chuu ◽  
G. L. Chen ◽  
S. L. Yang
Keyword(s):  
Thin Films ◽  
Grain Size ◽  
Size Effects ◽  
Cds Thin Films ◽  
Grain Size Effects

Thermal Conductivity of Nano-Porous Bismuth Antimony Telluride

2010 ◽  
Author(s):  
Saburo Tanaka ◽  
Masayuki Takashiri ◽  
Koji Miyazaki
Keyword(s):  
Thin Films ◽  
Thermal Conductivity ◽  
Phonon Scattering ◽  
Antimony Telluride ◽  
Bismuth Antimony Telluride ◽  
Porous Thin Films ◽  
Average Grain Size ◽  
Bismuth Antimony ◽  
Bulk Alloys ◽  
Thermal Conductivities

Bismuth antimony telluride (Bi0.4Te3.0Sb1.6) nano-porous thin films have been prepared and measured their thermal conductivities. The thin films exhibit an average grain size of 50 nm and random crystal orientation. The cross-plane thermal conductivity is measured by a differential 3ω method at temperature range from 100 to 300 K, and the determined thermal conductivities are from 0.09 to 0.18 W/(m·K). As compared with bulk alloys at the same atomic composition, the nano-porous thin films exhibit an eightfold reduction in the thermal conductivity. For more detail analysis, the reduction of the thermal conductivity is examined by a simplified phonon gas model on a single crystal of bulk Bi2Te3. The analytical model fairly agreed with the experimental results, and thus we consider that the thermal conductivity is reduced by the strong phonon scattering at the nano-pores.

scholarly journals Effect of grain size on thermal transport in post-annealed antimony telluride thin films

2015 ◽  
Vol 10 (1) ◽  
Author(s):  
No-Won Park ◽  
Won-Yong Lee ◽  
Ji-Eun Hong ◽  
Tae-Hyun Park ◽  
Soon-Gil Yoon ◽  
...  
Keyword(s):  
Thin Films ◽  
Grain Size ◽  
Thermal Transport ◽  
Antimony Telluride
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