Abstract
Thermal detectors find a significant niche in the market of modern sensors. Bi2T3 and PbTe semiconductors are effective thermoelectrics and excellent candidates for different applications. In the present work, a technology for fabrication of the thermal detector based on high-efficient p-Bi0.5Sb1.5Te3 and n-PbTe films on thin flexible polyimide substrate has been developed. The preparation of films was performed by a flash evaporation method. The high sensitivity of the devices is obtained as a result of the high Seebeck coefficient and low value of thermal conductivity for thin thermoelectric films. The devices operate in the Johnson-Nyquist noise limit of the thermocouple. The high performance enables fast and sensitive detection of low levels of thermal power and infrared radiation at room temperature.
Translated title of the contribution | Development of thermal detector based on flexible film thermoelectric module |
---|---|
Original language | Russian |
Pages (from-to) | 45-52 |
Number of pages | 8 |
Journal | Physics and Chemistry of Solid State |
Volume | 22 |
Issue number | 1 |
DOIs | |
State | Published - 1 Feb 2021 |
Keywords
- Bi2Te3
- PbTe
- Thermal detectors
- Thermoelectric properties
- Thin films
ASJC Scopus subject areas
- Condensed Matter Physics
- Materials Science (all)
- Physical and Theoretical Chemistry