Article ID Journal Published Year Pages File Type
1668269 Thin Solid Films 2011 4 Pages PDF
Abstract

Broad photoluminescence (PL) band at 2.97 eV excited in the band near 6.0 eV in amorphous chemical vapor deposition films is related to the neutral oxygen vacancy by analogy with crystalline Al2O3. The identification of this PL band was supported by the results of first-principle quantum chemical simulation, which showed 6.3 and 6.4 eV bands in the extinction spectra for α- and γ-Al2O3, respectively. Other PL bands are attributed to ionized single vacancies (F+-centers), divacancies (F2) and, probably, interstitial Al.

Related Topics
Physical Sciences and Engineering Materials Science Nanotechnology
Authors
, , , , ,