Published May 12, 2014
| Version v1
Journal article
Charge transport in colloidal ZnO nanocrystal solids: The significance of surface states
Creators
- 1. Cavendish Laboratory, J. J. Thomson Avenue, Cambridge CB3 0HE (United Kingdom)
- 2. Institute of Advanced Materials, Nanjing Tech University, Nanjing 211816 (China)
Description
We investigate charge transport behaviour in colloidal ZnO nanocrystal solids with different surface states. Our results show that the logarithm of the conductivity scales with −T−1/4, suggestive of Mott variable-range hopping. Analysis of the density of states at the Femi level suggests that the charge hopping occurs through surface or defect states, rather than by direct hopping between quantum-confined conduction band states of the nanocrystals
Additional details
Identifiers
- DOI
- 10.1063/1.4878257;
Publishing Information
- Journal Title
- Applied Physics Letters
- Journal Volume
- 104
- Journal Issue
- 19
- Journal Page Range
- p. 193111-193111.5
- ISSN
- 0003-6951
- CODEN
- APPLAB
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 45094626
- Subject category
- S77: NANOSCIENCE AND NANOTECHNOLOGY;
- Descriptors DEI
- CHARGE TRANSPORT; NANOSTRUCTURES; ZINC OXIDES
- Descriptors DEC
- CHALCOGENIDES; OXIDES; OXYGEN COMPOUNDS; ZINC COMPOUNDS
Optional Information
- Notes
- (c) 2014 AIP Publishing LLC