Photoresponse from noble metal nanoparticles-multi walled carbon nanotube composites
Abstract
In this Letter, we investigated the photo-response of multi wall carbon nanotube-based composites obtained from in situ thermal evaporation of noble metals (Au, Ag, and Cu) on the nanotube films. The metal deposition process produced discrete nanoparticles on the nanotube outer walls. The nanoparticle-carbon nanotube films were characterized by photo-electrochemical measurements in a standard three electrode cell. The photocurrent from the decorated carbon nanotubes remarkably increased with respect to that of bare multiwall tubes. With the aid of first-principle calculations, these results are discussed in terms of metal nanoparticle–nanotube interactions and electronic charge transfer at the interface.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Dec 10, 2012
- Source ID
- 10.1063/1.4771125
Entities
People
- E. Gatto
- L. Camilli
- L. Matthes
- M. De Crescenzi
- M. Scarselli
- M. Venanzi
- O. Pulci
- P. Castrucci
Organizations
- Air Force Office of Scientific Research
- European Theoretical Spectroscopy Facility
- Sapienza University of Rome