Development of thermal detector based on flexible film thermoelectric module

O. Kostyuk, Ya Yavorsky, B. Dzundza, Z. Dashevsky

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

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.

Original languageEnglish
Pages (from-to)45-52
Number of pages8
JournalPhysics and Chemistry of Solid State
Volume22
Issue number1
DOIs
StatePublished - 1 Feb 2021

Keywords

  • Bi2Te3
  • PbTe
  • Thermal detectors
  • Thermoelectric properties
  • Thin films

ASJC Scopus subject areas

  • Condensed Matter Physics
  • General Materials Science
  • Physical and Theoretical Chemistry

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