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Fabrication and simulation study for vertical micro-TEGs based on printed circuit board manufacturing processes

Author(s): ORCID
ORCID
ORCID
ORCID
Medium: journal article
Language(s): English
Published in: Smart Materials and Structures, , n. 10, v. 31
Page(s): 104003
DOI: 10.1088/1361-665x/ac8dcd
Abstract:

The development of fabrication procedures for micro-thermoelectric generators (µTEGs) based on low-cost fabrication technologies, appropriate for mass production is discussed and demonstrated in this study. Simulations were carried out, two manufacturing processes were tested, and device performance is compared to simulation results for vertical µTEGs. The substrate for this device is a printed circuit board, and the thermoelectric materials are self-developed Bi0.5Sb1.5Te3(p-type) and Bi2Te2.7Se0.3(n-type) pastes. A square µTEG (15 mm × 15 mm × 500 µm) with eight thermocouples (TCs) was fabricated. The characterization of the fabricated 8-TC-µTEG was carried out and a power output of 1.23 µW was obtained for the fabricated 8-TC-µTEG. The measurement results of this 8-TC-µTEG closely match simulation results as well. Moreover, a novel vertical electrical contact resistance measurement setup is designed and implemented into the final evaluation of µTEG production to have a more accurate assessment. The simulation study is also applied for the designed electrical contact resistance measurement setup. As a result, the contact resistivity of Bi2Te3/Cu was calculated as 5.65 × 10−4Ωcm².

Copyright: © 2022 Negin Sherkat, Athira Kattiparambil Sivaprasad, Uwe Pelz, Peter Woias
License:

This creative work has been published under the Creative Commons Attribution 4.0 International (CC-BY 4.0) license which allows copying, and redistribution as well as adaptation of the original work provided appropriate credit is given to the original author and the conditions of the license are met.

  • About this
    data sheet
  • Reference-ID
    10690600
  • Published on:
    23/09/2022
  • Last updated on:
    07/02/2024
 
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