Properties of Undoped Few-Layer Graphene-Based Transparent Heaters
Journal article, 2020
In many applications like sensors, displays, and defoggers, there is a need for transparent and efficient heater elements produced at low cost. For this reason, we evaluated the performance of graphene-based heaters with from one to five layers of graphene on flexible and transparent polyethylene terephthalate (PET) substrates in terms of their electrothermal properties like heating/cooling rates and steady-state temperatures as a function of the input power density. We found that the heating/cooling rates followed an exponential time dependence with a time constant of just below 6 s for monolayer heaters. From the relationship between the steady-state temperatures and the input power density, a convective heat-transfer coefficient of 60 W·m−2·°C−1 was found, indicating a performance much better than that of many other types of heaters like metal thin-film-based heaters and carbon nanotube-based heaters.
heater
resistance
heating/cooling rates
transfer
graphene
chemical vapor deposition (CVD)
Author
Yong Zhang
Chalmers, Microtechnology and Nanoscience (MC2), Electronics Material and Systems Laboratory
Shanghai University
H. Liu
Shanghai University
L. Tan
Shanghai University
Yan Zhang
Shanghai University
Kjell Jeppson
Chalmers, Computer Science and Engineering (Chalmers), Computer Engineering (Chalmers), Electronics Systems
B. Wei
Shanghai University
Johan Liu
Shanghai University
Chalmers, Microtechnology and Nanoscience (MC2), Electronics Material and Systems Laboratory
Materials
1996-1944 (ISSN)
Vol. 13 1 104Carbon Based High Speed 3D GaN Electronics System
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Swedish Foundation for Strategic Research (SSF), 2016-01-01 -- 2020-12-31.
Areas of Advance
Production
Subject Categories
Manufacturing, Surface and Joining Technology
Metallurgy and Metallic Materials
Condensed Matter Physics
DOI
10.3390/ma13010104
PubMed
31878269