Strong photoluminescence of nanostructured crystalline tungsten oxide thin films
- 29 March 2005
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 86 (14) , 141901
- https://doi.org/10.1063/1.1898434
Abstract
Strong photoluminescence (PL) is observed in nanostructured crystalline tungsten oxide thin films that are prepared by thermal evaporation. Two kinds of films are investigated—one made of nanoparticles and another of nanowires. At room temperature, strong PL emissions at ultraviolet-visible and blue regions are found in both of the films. Compared with the complete absence of emission of bulk phase tungsten oxide powder under the same excitation conditions, our results clearly demonstrate the quantum-confinement-effect-induced photoluminescence in nanostructured tungsten oxides.Keywords
This publication has 17 references indexed in Scilit:
- Transient photoconductivity properties of tungsten oxide thin films prepared by spray pyrolysisJournal of Applied Physics, 2001
- Pulsed laser deposition of WO3-base film for NO2 gas sensor applicationSensors and Actuators B: Chemical, 2000
- Nanocrystalline Tungsten Oxide Thin Film: Preparation, Microstructure, and Photochromic BehaviorJournal of Materials Research, 2000
- Electrochromic coloration efficiency of a-WO3−y thin films as a function of oxygen deficiencyApplied Physics Letters, 1999
- Comparison between electrochromic and photochromic coloration efficiency of tungsten oxide thin filmsSolid State Communications, 1997
- Hydrothermal synthesis of electrode materials pyrochlore tungsten trioxide filmJournal of Power Sources, 1995
- TUNGSTEN OXIDES AND BRONZES: SYNTHESIS, DIFFUSION AND REACTIVITYInternational Journal of Modern Physics B, 1993
- Niobium tungsten titanium oxides: From “soft chemistry” precursors to electrochromic thin layer materialsMaterials Research Bulletin, 1992
- Mechanisms of electrical conductivity in evaporated WO3 thin filmsSolid State Communications, 1980
- Electrochromism in hydrated tungsten-oxide filmsElectronics Letters, 1975