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Effect of ambient on electrical transport properties of ultra-thin Au nanowires
- Source :
- IndraStra Global.
- Publication Year :
- 2016
-
Abstract
- In this letter we present systematic studies of the dynamics of surface adsorption of various chemicals on ultra-thin single crystalline gold nanowires (AuNW) through sensitive resistance fluctuation spectroscopy measurements coupled with ab initio simulations. We show that, contrary to expectations, the adsorption of common chemicals like methanol and acetone has a profound impact on the electrical transport properties of the AuNW. Our measurements and subsequent calculations establish conclusively that in AuNW, semiconductor-like sensitivity to the ambient arises because of changes induced in its local density of states by the surface adsorbed molecules. The extreme sensitivity of the resistance fluctuations of the AuNW to ambient suggests their possible use as solid-state sensors. Published by AIP Publishing.
- Subjects :
- Materials science
Local density of states
Physics and Astronomy (miscellaneous)
Materials Research Centre
Physics
Nanowire
Ab initio
Nanotechnology
02 engineering and technology
010402 general chemistry
021001 nanoscience & nanotechnology
01 natural sciences
0104 chemical sciences
chemistry.chemical_compound
Adsorption
chemistry
Electrical transport
Chemical physics
Molecule
Methanol
0210 nano-technology
Spectroscopy
Subjects
Details
- Language :
- English
- ISSN :
- 23813652
- Database :
- OpenAIRE
- Journal :
- IndraStra Global
- Accession number :
- edsair.doi.dedup.....ed5269fbef3523f77d1d0afb7a23923d