Thermoelectric power and electrical resistivity of crystalline antimony telluride (Sb2Te3) thin films: Temperature and size effects

1989 ◽  
Vol 65 (6) ◽  
pp. 2332-2341 ◽  
Author(s):  
V. Damodara Das ◽  
N. Soundararajan
Keyword(s):  
Thin Films ◽  
Electrical Resistivity ◽  
Thermoelectric Power ◽  
Size Effects ◽  
Antimony Telluride

Thermoelectric power of Se20Te80 alloy thin films: Temperature and size effects

1989 ◽  
Vol 172 (2) ◽  
pp. 167-177 ◽  
Author(s):  
V.Damodara Das ◽  
P.Jansi Lakshmi
Keyword(s):  
Thin Films ◽  
Thermoelectric Power ◽  
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

scholarly journals Electrical Resistivity, Thermoelectric Power and I-V Characteristics of Sb-Se Thin Films at Different Compositions.

2020 ◽  
Vol 9 (7) ◽  
pp. 894-896
Keyword(s):  
Thin Films ◽  
Activation Energy ◽  
Electrical Resistivity ◽  
Thermoelectric Power ◽  
Room Temperature ◽  
Negative Temperature Coefficient ◽  
Selenium Concentration ◽  
Negative Temperature ◽  
Glass Substrates ◽  
Exponential Change

Sb-Se thin films of varying composition have been deposited on glass substrates at room temperature. These films were annealed at temperature interval of 50 0K. The electrical resistivity (ρ) and thermoelectric power (α) of same films were measured. The resistance of semiconducting films decreases rapidly on heating showing negative temperature coefficient of resistance (T.C.R.). The composition dependent resistivity shows exponential change, sharp fall of resistivity may be attributed due to increase of metallic ‘Sb’ in Sb-Se thin films. The composition dependent activation energy of Sb-Se thin films has been calculated. The activation energy (∆E) of semiconducting films was found to increase with selenium concentration. For different compositions thermoelectric power (α) increases upto 70 at. wt.% of Se concentration and then slowly decreases. The I-V characteristics of Sb-Se thin films were measured using copper (Cu) contacts. The films show ohmic conduction for different applied voltages as well as various concentrations of Selenium (Se) in Sb-Se thin films

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