1 ∕ f noise in gold nanoparticle chemosensors
- 9 February 2005
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 86 (7) , 073506
- https://doi.org/10.1063/1.1865324
Abstract
We present a systematic study of low-frequency noise in Au nanoparticle chemosensors. All the sensors we have studied exhibit 1∕f-type noise at low frequencies. The magnitude of the 1∕f noise was smaller in devices with a larger device area, indicating that the 1∕f noise is caused by intrinsic processes. The noise amplitude was found to be strongly temperature dependent between 40–300K, with a local peak at around 100K, and weakly dependent below 40K. The noise data could not be fit by a single activated process indicating that multiple noise processes must be present in our sensors.Keywords
This publication has 11 references indexed in Scilit:
- Single-Phase Synthesis of Functionalized Gold NanoparticlesChemistry of Materials, 2004
- Dual-Chemiresistor GC Detector Employing Monolayer-Protected Metal Nanocluster InterfacesAnalytical Chemistry, 2002
- Electronic Transport in Metal Nanocrystal Arrays: The Effect of Structural Disorder on Scaling BehaviorPhysical Review Letters, 2001
- Core−Shell Nanostructured Nanoparticle Films as Chemically Sensitive InterfacesAnalytical Chemistry, 2001
- Coulomb blockade in single-layer Au nanocluster filmsPhysical Review B, 2001
- Formation of Long-Range-Ordered Nanocrystal Superlattices on Silicon Nitride SubstratesThe Journal of Physical Chemistry B, 2001
- Vapour sensing using hybrid organic–inorganic nanostructured materialsJournal of Materials Chemistry, 2000
- Colloidal Metal−Insulator−Metal Ensemble Chemiresistor SensorAnalytical Chemistry, 1998
- Synthesis and reactions of functionalised gold nanoparticlesJournal of the Chemical Society, Chemical Communications, 1995
- Collective transport in arrays of small metallic dotsPhysical Review Letters, 1993