Oxygen sensors made by monolayer graphene

S. C. Hung; C. W. Chen; M. D. Yang; C. W. Yeh; C. H. Wu; G. C. Chi; R. Fan; S. J. Pearton

doi:10.1117/12.907768

20 January 2012 Oxygen sensors made by monolayer graphene

S. C. Hung, C. W. Chen, M. D. Yang, C. W. Yeh, C. H. Wu, G. C. Chi, R. Fan, S. J. Pearton

Proceedings Volume 8268, Quantum Sensing and Nanophotonic Devices IX; 826822 (2012) https://doi.org/10.1117/12.907768
Event: SPIE OPTO, 2012, San Francisco, California, United States

Abstract

The electrical resistivity of monolayer graphene exhibit significant changes upon expose to different concentration of oxygen (O2) at room temperature. The monolayer graphene, grown by chemical vapor deposition (CVD) with perfect uniformity within 1cm×1cm will attach O₂ molecules which will act as a p-type dopant and enhance the hole conductivity, make a change of resistivity of graphene thin film. We quantified the change of resistivity of graphene versus different O₂ concentration and the detection limit of the simple O₂ sensor was 1.25% in volume ratio.

Citation Download Citation

S. C. Hung, C. W. Chen, M. D. Yang, C. W. Yeh, C. H. Wu, G. C. Chi, R. Fan, and S. J. Pearton "Oxygen sensors made by monolayer graphene", Proc. SPIE 8268, Quantum Sensing and Nanophotonic Devices IX, 826822 (20 January 2012); https://doi.org/10.1117/12.907768

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available