Graphite on paper as material for sensitive thermoresistive sensors | Zendy

Toan Dinh | Zendy; HoangPhuong Phan | Zendy; Dzung Viet Dao | Zendy; Peter Woodfield | Zendy; Afzaal Qamar | Zendy; NamTrung Nguyen | Zendy

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Graphite on paper as material for sensitive thermoresistive sensors

Author(s) -

Toan Dinh,

HoangPhuong Phan,

Dzung Viet Dao,

Peter Woodfield,

Afzaal Qamar,

NamTrung Nguyen

Publication year - 2015

Publication title -

journal of materials chemistry c

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.899

H-Index - 128

eISSN - 2050-7534

pISSN - 2050-7526

DOI - 10.1039/c5tc01650a

Subject(s) - graphite , materials science , anemometer , temperature coefficient , optoelectronics , composite material , meteorology , physics , turbulence

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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