A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä
Key factors tuning upconversion and near infrared luminescence in nanosized Lu2O3:Er3+,Yb3+
Tekijät: Paweł Głuchowski, Łukasz Marciniak, Mika Lastusaari, Wiesław Strek
Kustantaja: ELSEVIER SCIENCE SA
Julkaisuvuosi: 2019
Journal: Journal of Alloys and Compounds
Tietokannassa oleva lehden nimi: JOURNAL OF ALLOYS AND COMPOUNDS
Lehden akronyymi: J ALLOY COMPD
Vuosikerta: 799
Aloitussivu: 481
Lopetussivu: 494
Sivujen määrä: 14
ISSN: 0925-8388
eISSN: 1873-4669
DOI: https://doi.org/10.1016/j.jallcom.2019.05.358
Tiivistelmä
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.
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