Microstructure, transmittance and upconversion luminescence of Y2O3:Er3+ translucent ceramics-Reference-Cited by-同舟云学术

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

Published:2020-03-01 Issue:1 Volume:38 Page:159-164
ISSN:2083-134X
Container-title:Materials Science-Poland
language:en
Short-container-title:

Author:

Guo Yanyan¹,Wu Xinghua²,Wang Qingkai²,Wang Dianyuan²

Affiliation:

1. Faculty of Mechanical and Materials Engineering , Jiujiang University , Jiujiang 332005, PR China

2. College of Science , Jiujiang University , Jiujiang 332005, PR China

Abstract

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.

Publisher

Walter de Gruyter GmbH

Subject

Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science

Link

https://www.sciendo.com/pdf/10.2478/msp-2020-0018

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