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Edge-Functionalized Graphene Nanoribbon Chemical Sensor: Comparison with Carbon Nanotube and Graphene
- Source :
- ACS applied materialsinterfaces. 10(49)
- Publication Year :
- 2018
-
Abstract
- With growing focus on the use of carbon nanomaterials in chemical sensors, one-dimensional graphene nanoribbon (GNR) has become one of the most attractive channel materials, owing to its enhanced conductance fluctuation by quantum confinement effects and dense, abundant edge sites. Due to the narrow width of a basal plane with one-dimensional morphology, chemical modification of edge sites would greatly affect the electrical channel properties of a GNR. Here, we demonstrate for the first time that chemically functionalizing the edge sites with aminopropylsilane (APS) molecules can significantly enhance the sensing performance of the GNR sensor. The resulting APS-functionalized GNR has a sensitivity ((Δ R/ R
- Subjects :
- Materials science
Graphene
Functionalized graphene
Nanotechnology
02 engineering and technology
Carbon nanotube
Edge (geometry)
010402 general chemistry
021001 nanoscience & nanotechnology
01 natural sciences
Chemical sensor
0104 chemical sciences
law.invention
law
General Materials Science
0210 nano-technology
Carbon nanomaterials
Subjects
Details
- ISSN :
- 19448252
- Volume :
- 10
- Issue :
- 49
- Database :
- OpenAIRE
- Journal :
- ACS applied materialsinterfaces
- Accession number :
- edsair.doi.dedup.....902e38ded2ff3cd0b273d13fe2029cee