Giant enhancement of band edge emission based on ZnO/TiO2 nanocomposites
Journal
Optics Express
Journal Volume
15
Journal Issue
21
Pages
13832-13837
Date Issued
2007
Author(s)
Abstract
Enhancement of band edge emission of ZnO nanorods up to a factor of 120 times has been observed in the composite consisting of ZnO nanorods and TiO(2) nanoparticles, while the defect emission of ZnO nanorods is quenched to noise level. Through a detailed investigation, it is found that the large enhancement mainly arises from fluorescence resonance energy transfer between the band edge transition of ZnO nanorods and TiO(2) nanoparticles. Our finding opens up new possibilities for the creation of highly efficient solid state emitters.
SDGs
Type
journal article