Dinh, Toan ORCID: https://orcid.org/0000-0002-7489-9640 and Phan, Hoang-Phuong and Dao, Dzung Viet and Woodfield, Peter and Qamar, Afzaal and Nguyen, Nam-Trung
(2015)
Graphite on paper as material for sensitive thermoresistive sensors.
Journal of Materials Chemistry C, 3 (34).
pp. 8776-8779.
ISSN 2050-7526
Abstract
This paper reports on the thermoresistive properties of graphite on paper (GOP). A negative temperature coefficient of resistance (TCR) from −2900 to −4400 ppm K−1 was observed for the GOP. This negative and large TCR is attributed to an increase in the thermionic emission current over a low potential barrier with increasing temperature. The potential barrier was found to be 33 meV between the graphite grains. The paper also demonstrates the use of the GOP in a highly sensitive (0.83 mV (m s−1)−0.8 mW−1) GOP-based anemometer, indicating strong feasibility of using this material for low-cost and sensitive thermal sensing applications.
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