Preparation and photoluminescence of alumina membranes with ordered pore arrays

Authors
Du, Y Cai, WL Mo, CM Chen, J Zhang, LD Zhu, XG
Citation
Y. Du et al., Preparation and photoluminescence of alumina membranes with ordered pore arrays, APPL PHYS L, 74(20), 1999, pp. 2951-2953
Citations number
9
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
APPLIED PHYSICS LETTERS
ISSN journal
00036951 → ACNP
Volume
74
Issue
20
Year of publication
1999
Pages
2951 - 2953
Database
ISI
SICI code
0003-6951(19990517)74:20<2951:PAPOAM>2.0.ZU;2-V
Abstract
Porous alumina membranes with ordered pore arrays were prepared electrochem ically from Al metal in C2H2O4 or H2SO4. Photoluminescence (PL) measurement s show that a blue PL band occurs in the wavelength range of 400-600 nm. Th is band originates from singly ionized oxygen vacancies (F+ centers) in por ous alumina membranes. Tentative reasons for the changes in intensity and p eak position of the PL band with increasing heat-treatment temperature are discussed. (C) 1999 American Institute of Physics. [S0003-6951(99)03820-6].