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Graphene Thermocouples: Single‐Material Graphene Thermocouples (Adv. Funct. Mater. 22/2020)
Author(s) -
Harzheim Achim,
Könemann Fabian,
Gotsmann Bernd,
Zant Herre,
Gehring Pascal
Publication year - 2020
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.202070137
Subject(s) - graphene , thermocouple , materials science , scattering , seebeck coefficient , enhanced data rates for gsm evolution , strips , composite material , nanotechnology , optics , thermal conductivity , telecommunications , physics , computer science
In article number 2000574, Achim Harzheim, Pascal Gehring, and co‐workers report U‐shaped graphene strips comprising one wide and one narrow leg that form a single material thermocouple due to the increased influence of electron edge scattering in a narrow channel. This leads to different Seebeck coefficients in the two legs, which for the devices tested, yield a maximum sensitivity of Δ S ≈ 39 μV K −1 .