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Lanthanide-doped scandia and yttria cathodoluminescent films: A comparative study

Gozzi, D., Latini, A., Carta, D., Corrias, A., Falqui, A., Mountjoy, G., Lazzarini, L., Salviati, G., Fiddy, S.G. (2008) Lanthanide-doped scandia and yttria cathodoluminescent films: A comparative study. Chemistry of Materials, 20 (17). pp. 5666-5674. ISSN 0897-4756. (doi:10.1021/cm8014176) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided)

The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided. (Contact us about this Publication)
Official URL
http://dx.doi.org/10.1021/cm8014176

Abstract

A comparative study of red-green-blue cathodoluminescent films based on yttria (Y2O3) and scandia (Sc2O3) as host materials was carried out. Europia (Eu2O3), terbia (Tb2O3), and thulia (Tm2O3) were used as dopant, respectively, for the red, green, and blue light emissions. The films were grown on quartz optical polished substrates heated at 800°C by EB-PVD codeposition. EXAFS and XANES spectroscopies were used for determining the local structure around the lanthanide ion, whereas thin film XRD and HREM were employed to characterize the bulk microstructure. For a given dopant and concentration, the light emissions were found to be more intense for films having scandia as host. This was found to be due to a greater asymmetry of the lanthanide dopant caused by the differences in size between the doping and the host ion.

Item Type: Article
DOI/Identification number: 10.1021/cm8014176
Uncontrolled keywords: Cathodoluminescence, Light emission, Luminescence, Rare earth elements, Comparative studies, Lanthanide, Red-green-blue, Yttrium alloys
Subjects: Q Science > QC Physics > QC176.8.N35 Nanoscience, nanotechnology
Divisions: Faculties > Sciences > School of Physical Sciences > Functional Materials Group
Depositing User: Anna Corrias
Date Deposited: 17 Dec 2014 11:56 UTC
Last Modified: 29 May 2019 13:57 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/46217 (The current URI for this page, for reference purposes)
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