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Effects of aluminum doping upon color formation in zinc oxide powders (1993)

Rafla-Yuan, H. ; Cordaro, J. F.

[S.l.] : American Institute of Physics (AIP)

Journal of Applied Physics 74 (1993), S. 4685-4690

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ISSN: 1089-7550

Source: AIP Digital Archive

Topics: Physics

Notes: 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 aluminum doping suppresses the band formation induced by grinding; however, the doping does not suppress the band formation induced by heat treatment.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1063/1.354360

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