Oxygen functionalised epitaxial graphene sensors for enhanced polar organic chemical vapour detection
作者： V. K. Nagareddy , J. P. Goss , N. G. Wright , A. B. Horsfall , S. C. Hernandez
DOI: 10.1109/ICSENS.2012.6411289
关键词:
摘要: Oxygen functionalised epitaxial graphene (OFEG) chemiresistor sensors were fabricated for sensing polar organic analyte vapours in the ambient atmosphere. The electrical characteristics of sensor showed an increase resistance to protic analytes, whilst decreased upon exposure aprotic vapours. OFEG a significant response time and order magnitude improvement recovery comparison non-functionalised (NFEG) sensors. A strong correlation between dipole moment was observed, where large linear small nonlinear change NFEG
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