Fabrication of green and orange photoluminescent, undoped ZnO films using spray pyrolysis
- 15 August 1998
- journal article
- conference paper
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 84 (4) , 2287-2294
- https://doi.org/10.1063/1.368295
Abstract
Photoluminescent, undoped ZnO films have been fabricated using spray pyrolysis of zinc nitrate solution. The luminescent films had a polycrystalline hexagonal wurtzite type structure with no preferred orientation. Photoluminescence intensity was critically dependent on substrate temperature during spray pyrolysis and on post-annealing temperature. Green, photoluminescent films possessed a porous structure while orange films possessed a close packed granular morphology. Green luminescence appears to be due to oxygen vacancies in a layer just below the crystallite surface.This publication has 26 references indexed in Scilit:
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