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dc.contributor.authorChen, JHen_US
dc.contributor.authorHuang, CPen_US
dc.contributor.authorChao, CGen_US
dc.contributor.authorChen, TMen_US
dc.date.accessioned2014-12-08T15:16:03Z-
dc.date.available2014-12-08T15:16:03Z-
dc.date.issued2006-08-01en_US
dc.identifier.issn0947-8396en_US
dc.identifier.urihttp://dx.doi.org/10.1007/s00339-006-3623-zen_US
dc.identifier.urihttp://hdl.handle.net/11536/11930-
dc.description.abstractTo investigate the origin of blue photoluminescence (PL) in porous alumina membrane, we have prepared an anodic aluminum oxide film with a pore diameter of 40 nm in oxalic acid solution by a two-step anodization process. Our results show that the as-prepared alumina membrane is amorphous and exhibits a broad emission band peaking at around 452 nm with two sub-peaks located at 443 nm and 470 nm. As indicated by the PL excitation spectra, there are two excitation peaks which can account for the sub-peaks observed in the PL emission band. We have proposed that the broad emission band with two sub-peaks can be attributed to two luminescence centers in porous alumina membranes, namely, oxygen defects and oxalic impurities. Furthermore, we have rationalized that the two emission centers show similar influence on the PL band in the blue region based on a simple model.en_US
dc.language.isoen_USen_US
dc.titleThe investigation of photoluminescence centers in porous alumina membranesen_US
dc.typeArticleen_US
dc.identifier.doi10.1007/s00339-006-3623-zen_US
dc.identifier.journalAPPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSINGen_US
dc.citation.volume84en_US
dc.citation.issue3en_US
dc.citation.spage297en_US
dc.citation.epage300en_US
dc.contributor.department材料科學與工程學系zh_TW
dc.contributor.department應用化學系zh_TW
dc.contributor.departmentDepartment of Materials Science and Engineeringen_US
dc.contributor.departmentDepartment of Applied Chemistryen_US
dc.identifier.wosnumberWOS:000238292600013-
dc.citation.woscount21-
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