Effects of aluminum doping upon color formation in zinc oxide powders
- 1 October 1993
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 74 (7) , 4685-4690
- https://doi.org/10.1063/1.354360
Abstract
The effects on the reflectance spectra of zinc oxide powders, of heat treatment, and of mechanical grinding were investigated for both undoped and aluminum‐doped ZnO. A broad absorptance band at 390–400 nm was induced in the undoped powders both by heating in air and by grinding. From a comparison with electron paramagnetic resonance data from the literature, the band could be related to oxygen vacancies. It was found that aluminumdoping suppresses the band formation induced by grinding; however, the doping does not suppress the band formation induced by heat treatment.This publication has 11 references indexed in Scilit:
- Optical reflectance of aluminum-doped zinc oxide powdersJournal of Applied Physics, 1991
- Defect clusters in zinc oxideJournal of Applied Physics, 1990
- On the Defect Structure of Zinc‐Doped Zinc OxidePhysica Status Solidi (b), 1981
- Photosensitivity of the EPR spectrum of the F+ center in ZnOPhysica Status Solidi (b), 1976
- Electron Spin Resonance of Lattice Defects in Zinc OxidePhysica Status Solidi (a), 1974
- Temperature Dependence of the Band Gap in ZnO from Reflection DataPhysica Status Solidi (b), 1974
- Interaction of ultra-violet radiation with surface energy levels of the ZnO-Li2O-O2system as revealed by electron spin resonance spectroscopyFaraday Discussions of the Chemical Society, 1974
- ESR of electron irradiated ZnO confirmation of the F+ centerPhysics Letters A, 1970
- Interpretation of the Yellow Colour of Heat Treated ZnO PowderPhysica Status Solidi (b), 1965
- Surface conductivity of semiconductors and its variation by adsorption, transverse electric fields and irradiationDiscussions of the Faraday Society, 1959