Title
Combinatorial approach toward optimization of the light emission intensity of AlOxNy:Yb3+ thin films
Date Issued
2019
Access level
restricted access
Resource Type
journal article
Author(s)
Tofflinger, JA
Guerra, JA
Publisher(s)
OSA - The Optical Society
Abstract
To obtain an adequate luminescent emission, a significant effort must be made to find a suitable host material. An interesting and highly efficient method is a combinatorial approach, which allows high velocity screening of a wider range of properties. In the present work, a compositional gradient-based, thin-film library of a-AlO x N y :Yb 3 has been prepared by radio frequency co-sputtering from two targets. The ytterbium concentration range spreads from 0.9 to 4.2 at. % and the oxygen to nitrogen ratio from 0.6 to 3.6. Using different annealing temperatures, the activation energy of the rare earth ions and activation mechanisms can be evaluated. Finally, optimal elemental compositions in the investigated range are proposed. © 2019 Optical Society of America © 2019 Optical Society of America.
Start page
3097
End page
3103
Volume
58
Issue
12
Number
4
Language
English
Scopus EID
2-s2.0-85064717703
PubMed ID
Source
Applied Optics
ISSN of the container
1559-128X
Sponsor(s)
Acknowledgment. This work could not have been possible without the support of Prof. Dr. Francisco Rumiche and the Center of Materials Characterization of the Pontificia Universidad Católica del Perù (CAM-PUCP), which holds the characterization equipment. The authors also acknowledge the support provided by the Vice-Rectory of Research of the PUCP.
Sources of information:
Directorio de Producción Científica