A1 Refereed original research article in a scientific journal
Key factors tuning upconversion and near infrared luminescence in nanosized Lu2O3:Er3+,Yb3+
Authors: Paweł Głuchowski, Łukasz Marciniak, Mika Lastusaari, Wiesław Strek
Publisher: ELSEVIER SCIENCE SA
Publication year: 2019
Journal: Journal of Alloys and Compounds
Journal name in source: JOURNAL OF ALLOYS AND COMPOUNDS
Journal acronym: J ALLOY COMPD
Volume: 799
First page : 481
Last page: 494
Number of pages: 14
ISSN: 0925-8388
eISSN: 1873-4669
DOI: https://doi.org/10.1016/j.jallcom.2019.05.358
Abstract
The up-conversion (UC) phenomenon is a well-known process based on anti-Stokes emission observed in materials doped with luminescent ions. Several factors lead to UC and IR colour changes. Usually, various dopants with emission in whole VIS region are used to change colours. This paper is focused on the factors that can change the colour of the Yb - Er UC and IR emission. Complex measurements were done in a wide range of temperatures to check the dependence of several factors on Stokes and anti-Stokes emission of the Lu2O3:Er3+,Yb3+ system. It was found that the size of the grains have the highest impact on the spectroscopic properties of the Lu2O3:Er3+,Yb3+. For the smallest particles also Yb/Er concentration ratio, temperature of the measurement and incident laser power have a great impact on both types of the emission colour. (C) 2019 Elsevier B.V. All rights reserved.
The up-conversion (UC) phenomenon is a well-known process based on anti-Stokes emission observed in materials doped with luminescent ions. Several factors lead to UC and IR colour changes. Usually, various dopants with emission in whole VIS region are used to change colours. This paper is focused on the factors that can change the colour of the Yb - Er UC and IR emission. Complex measurements were done in a wide range of temperatures to check the dependence of several factors on Stokes and anti-Stokes emission of the Lu2O3:Er3+,Yb3+ system. It was found that the size of the grains have the highest impact on the spectroscopic properties of the Lu2O3:Er3+,Yb3+. For the smallest particles also Yb/Er concentration ratio, temperature of the measurement and incident laser power have a great impact on both types of the emission colour. (C) 2019 Elsevier B.V. All rights reserved.
UTU Research Portal