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

Daniele Gozzi; Alessandro Latini; Daniela Carta; Anna Corrias; Andrea Falqui; Gavin Mountjoy; Laura Lazzarini; Giancarlo Salviati; Steven G. Fiddy

doi:10.1021/cm8014176

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

Daniele Gozzi^*, Alessandro Latini, Daniela Carta, Anna Corrias, Andrea Falqui, Gavin Mountjoy, Laura Lazzarini, Giancarlo Salviati, Steven G. Fiddy

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

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.

Original language	English (US)
Pages (from-to)	5666-5674
Number of pages	9
Journal	Chemistry of Materials
Volume	20
Issue number	17
DOIs	https://doi.org/10.1021/cm8014176
State	Published - Sep 9 2008
Externally published	Yes

ASJC Scopus subject areas

General Chemistry
General Chemical Engineering
Materials Chemistry

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title = "Lanthanide-doped scandia and yttria cathodoluminescent films: A comparative study",

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.",

author = "Daniele Gozzi and Alessandro Latini and Daniela Carta and Anna Corrias and Andrea Falqui and Gavin Mountjoy and Laura Lazzarini and Giancarlo Salviati and Fiddy, {Steven G.}",

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T2 - A comparative study

AU - Gozzi, Daniele

AU - Latini, Alessandro

AU - Carta, Daniela

AU - Corrias, Anna

AU - Falqui, Andrea

AU - Mountjoy, Gavin

AU - Lazzarini, Laura

AU - Salviati, Giancarlo

AU - Fiddy, Steven G.

PY - 2008/9/9

Y1 - 2008/9/9

N2 - 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.

AB - 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.

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JO - Chemistry of Materials

JF - Chemistry of Materials

IS - 17

ER -

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

Abstract

ASJC Scopus subject areas

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