scholarly journals Harnessing Topological Band Effects in Bismuth Telluride Selenide for Large Enhancements in Thermoelectric Properties through Isovalent Doping

2016 ◽  
Vol 28 (30) ◽  
pp. 6436-6441 ◽  
Author(s):  
Devender ◽  
Pascal Gehring ◽  
Andrew Gaul ◽  
Alexander Hoyer ◽  
Kristina Vaklinova ◽  
...  
Keyword(s):  
Thermoelectric Properties ◽  
Bismuth Telluride ◽  
Isovalent Doping

scholarly journals Direct measurement of the thermoelectric properties of electrochemically deposited Bi2Te3 thin films

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Jose Recatala-Gomez ◽  
Pawan Kumar ◽  
Ady Suwardi ◽  
Anas Abutaha ◽  
Iris Nandhakumar ◽  
...  
Keyword(s):  
Thin Films ◽  
Thermoelectric Properties ◽  
Bismuth Telluride ◽  
Indium Tin Oxide ◽  
Seed Layer ◽  
Room Temperature ◽  
Low Cost ◽  
Temperature Dependent ◽  
Temperature Heat ◽  
Electrochemically Deposited

Abstract The best known thermoelectric material for near room temperature heat-to-electricity conversion is bismuth telluride. Amongst the possible fabrication techniques, electrodeposition has attracted attention due to its simplicity and low cost. However, the measurement of the thermoelectric properties of electrodeposited films is challenging because of the conducting seed layer underneath the film. Here, we develop a method to directly measure the thermoelectric properties of electrodeposited bismuth telluride thin films, grown on indium tin oxide. Using this technique, the temperature dependent thermoelectric properties (Seebeck coefficient and electrical conductivity) of electrodeposited thin films have been measured down to 100 K. A parallel resistor model is employed to discern the signal of the film from the signal of the seed layer and the data are carefully analysed and contextualized with literature. Our analysis demonstrates that the thermoelectric properties of electrodeposited films can be accurately evaluated without inflicting any damage to the films.

Tailoring bismuth telluride nanostructures using a scalable sintering process and their thermoelectric properties

CrystEngComm ◽  
2014 ◽  
Vol 16 (34) ◽  
pp. 7956-7962 ◽  
Author(s):  
P. Anandan ◽  
M. Omprakash ◽  
M. Azhagurajan ◽  
M. Arivanandhan ◽  
D. Rajan Babu ◽  
...  
Keyword(s):  
Thermoelectric Properties ◽  
Bismuth Telluride ◽  
Sintering Process

The size and phase of bismuth telluride nanocrystals were tailored using a sintering process, to enhance their thermoelectric properties.

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