A study of hydrogen gas sensing performance of Pt/Graphene/GaN devices


Autoria(s): Yu, J.; Shafiei, M.; Ou, J.; Shin, K.; Wlodarski, W.
Contribuinte(s)

Lewis, Elfred

Data(s)

2011

Resumo

In this work, we present an investigation on Pt/graphene/GaN devices for hydrogen gas sensing applications. The graphene layer was deposited on GaN substrate using a chemical vapour deposition (CVD) technique and was characterised via Raman and X-ray photoelectron spectroscopy. The current-voltage (I-V) and dynamic response of the developed devices were investigated in forward and reverse bias operation at an optimum temperature of 160°C. Voltage shifts of 661.1 and 484.9 mV were recorded towards 1% hydrogen at forward and reverse constant bias current of 1 mA, respectively.

Formato

application/pdf

Identificador

http://eprints.qut.edu.au/59563/

Publicador

IEEE

Relação

http://eprints.qut.edu.au/59563/1/Yu_2011_published_paper.pdf

http://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=06126969

Yu, J., Shafiei, M., Ou, J., Shin, K., & Wlodarski, W. (2011) A study of hydrogen gas sensing performance of Pt/Graphene/GaN devices. In Lewis, Elfred (Ed.) Proceedings of the IEEE SENSORS 2011 Conference, IEEE, Limerick, Ireland, pp. 1017-1020.

Direitos

© 2011 IEEE.

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Fonte

School of Chemistry, Physics & Mechanical Engineering; Science & Engineering Faculty

Palavras-Chave #030107 Sensor Technology (Chemical aspects) #100708 Nanomaterials #100712 Nanoscale Characterisation
Tipo

Conference Paper