<abstract xmlns="http://www.w3.org/1999/xhtml">Y2O3:Er3+ translucent ceramics was fabricated with addition of La(OH)3 nanopowder as a sintering aid. The influence of La(OH)3 addition on the microstructure, transmittance and upconversion luminescence of Y2O3:Er3+ ceramics was investigated in detail. The results show that the ceramics sample with 5 mol % La(OH)3 additives exhibits finer microstructure with fewer pores and higher optical transmittance than others. It was proved that La(OH)3 additives could greatly reduce the porosity and improve the transparency of Y2O3:Er3+ ceramics. By using a 980 nm diode laser as a pumping source, the Y2O3:Er3+ ceramics gave bright visible upconversion luminescence, which was ascribed to the radiative transitions of 2H11/2,4S3/2 →4I15/2 and 4F9/2 →4I15/2 of Er3+ ions, respectively. The possible upconversion mechanism has been proposed accordingly.</abstract>

Y2O3:Er3+ translucent ceramics was fabricated with addition of La(OH)3 nanopowder as a sintering aid. The influence of La(OH)3 addition on the microstructure, transmittance and upconversion luminescence of Y2O3:Er3+ ceramics was investigated in detail. The results show that the ceramics sample with 5 mol % La(OH)3 additives exhibits finer microstructure with fewer pores and higher optical transmittance than others. It was proved that La(OH)3 additives could greatly reduce the porosity and improve the transparency of Y2O3:Er3+ ceramics. By using a 980 nm diode laser as a pumping source, the Y2O3:Er3+ ceramics gave bright visible upconversion luminescence, which was ascribed to the radiative transitions of 2H11/2,4S3/2 →4I15/2 and 4F9/2 →4I15/2 of Er3+ ions, respectively. The possible upconversion mechanism has been proposed accordingly.

Microstructure, transmittance and upconversion luminescence of Y2O3:Er3+ translucent ceramics

Faculty of Mechanical and Materials Engineering

Materials Science-Poland

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Microstructure, transmittance and upconversion luminescence of YO:Er translucent ceramics

Y2O3:Er3+ translucent ceramics was fabricated with addition of La(OH)3 nanopowder as a sintering aid. The influence of La(OH)3 addition on the microstructure,...

Microstructure, transmittance and upconversion luminescence of Y₂O₃:Er³⁺ translucent ceramics

Published Online: May 08, 2020

Page range: 159 - 164

Received: Dec 01, 2018

Accepted: Apr 23, 2019

DOI: https://doi.org/10.2478/msp-2020-0018

Keywords
ceramics, YO, microstructure, upconversion luminescence

© 2020 Yanyan Guo et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Microstructure, transmittance and upconversion luminescence of Y2O3:Er3+ translucent ceramics

Published Online: May 08, 2020

Page range: 159 - 164

Received: Dec 01, 2018

Accepted: Apr 23, 2019

DOI: https://doi.org/10.2478/msp-2020-0018

Keywordsceramics, YO, microstructure, upconversion luminescence

© 2020 Yanyan Guo et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Microstructure, transmittance and upconversion luminescence of Y₂O₃:Er³⁺ translucent ceramics

Keywords
ceramics, YO, microstructure, upconversion luminescence