Journal
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
Volume 15, Issue 6, Pages 1798-1801Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2cp43717a
Keywords
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Funding
- National Research Foundation of Korea (NRF)
- Ministry of Education, Science and Technology [2011-0004270]
- Korea Institute of Energy Technology Evaluation and Planning (KETEP)
- Ministry of Knowledge Economy [20104010100640]
- AN NSF
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Graphene-based, flexible NO2 sensors on paper substrates exhibited an immediate response (32-39%) once exposed to 200 ppm NO2 gas under a strain of 0.5%. Chemical vapor deposition-grown graphene with a supporting poly(methyl methacrylate) layer was transferred onto paper substrates, followed by formation of two electrodes using silver paste. Current-voltage characteristics and dynamic sensing response were obtained under both relaxed and strained conditions. We demonstrate a facile method without complex photo-lithography and high vacuum processes for fabricating graphene-based flexible NO2 sensors on paper substrates with high sensing response.
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