Metal-Metal Thermoelectric Harvester
Paper i proceeding, 2019

A 3-couples proof-of-concept harvester (55×6 mm2) was assembled by spot welding 0.1 mm thick molybdenum foil and 0.15 mm thick nickel foil together. To insulate the foils from each other at the hot side a 0.1 mm thick glass fiber sheet was placed between the foils. At the cold side the harvester was insulated with 0.1 mm polyimide tape for easier handling and fabrication of the harvester. The load resistance measurement gave impedance match of approximately 0.24 Ω at 28°C, which slowly decreased to approximately 0.1 Ω as the temperature increased to 172°C. With a temperature gradient of 172°C (0-172°C) and 0.125 (±0.025) Ω load resistance, a power output was measured to 450 (±85) μW at 7.2 mV.

Spot welding

Thermoelectric energy conversion

Impedance matching (electric)



Elof Köhler

Chalmers, Mikroteknologi och nanovetenskap, Elektronikmaterial

Peter Enoksson

Chalmers, Mikroteknologi och nanovetenskap, Elektronikmaterial

Journal of Physics: Conference Series

17426588 (ISSN) 17426596 (eISSN)

Vol. 1407 1 012056

18th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications, PowerMEMS 2018
Daytona Beach, USA,


Bearbetnings-, yt- och fogningsteknik

Annan elektroteknik och elektronik

Den kondenserade materiens fysik



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