Optical Temperature Sensing of YbNbO<sub>4</sub>:Er<sup>3+</sup> Phosphors Synthesized by Hydrothermal Method

Optical Temperature Sensing of YbNbO<sub>4</sub>:Er<sup>3+</sup> Phosphors Synthesized by Hydrothermal Method

The novel YbNbO<sub>4</sub>:Er<sup>3+</sup> phosphors were firstly synthesized through the hydrothermal method by adding LiOH·H<sub>2</sub>O as flux in the H<sub>2</sub>O/EG system. YbNbO<sub>4</sub>:Er<sup>3+</sup> phosphors sh...

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Main Authors: Heming Ji, Xunze Tang, Haiyan Zhang, Xiaolong Li, Yannan Qian
Format: Article
Language:English
Published: MDPI AG 2021-03-01
Series:Coatings
Subjects:
optical temperature sensing
YbNbO<sub>4</sub>:Er<sup>3+</sup> phosphor
fluorescence intensity ratio
Online Access:https://www.mdpi.com/2079-6412/11/4/383
id doaj-499cb25a2abe4aee94b2a9c013bbb76d
record_format Article
spelling doaj-499cb25a2abe4aee94b2a9c013bbb76d2021-03-28T00:01:25ZengMDPI AGCoatings2079-64122021-03-011138338310.3390/coatings11040383Optical Temperature Sensing of YbNbO<sub>4</sub>:Er<sup>3+</sup> Phosphors Synthesized by Hydrothermal MethodHeming Ji0Xunze Tang1Haiyan Zhang2Xiaolong Li3Yannan Qian4Guangdong Provincial Key Laboratory of Functional Soft Condensed Matter, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, ChinaGuangdong Provincial Key Laboratory of Functional Soft Condensed Matter, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, ChinaGuangdong Provincial Key Laboratory of Functional Soft Condensed Matter, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, ChinaSchool of Mechanical and Electrical Engineering, Yunnan Agricultural University, Kunming 650201, ChinaGuangdong Provincial Key Laboratory of Functional Soft Condensed Matter, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, ChinaThe novel YbNbO<sub>4</sub>:Er<sup>3+</sup> phosphors were firstly synthesized through the hydrothermal method by adding LiOH·H<sub>2</sub>O as flux in the H<sub>2</sub>O/EG system. YbNbO<sub>4</sub>:Er<sup>3+</sup> phosphors showed the agglomerated irregular polygons coexisting with some tiny grains. XRD and Raman spectra were measured to understand the phase structure and the crystal growth mechanism of YbNbO<sub>4</sub>:Er<sup>3+</sup> phosphors. The upconversion (UC) emission spectra, the pump power dependency and UC mechanism were studied under 980 nm excitation. Based on the fluorescence intensity ratio technique, YbNbO<sub>4</sub>:Er<sup>3+</sup> exhibited the maximum sensor sensitivity of 0.00712 K<sup>−1</sup> at 220 K, providing a promising application in optical low-temperature sensors.https://www.mdpi.com/2079-6412/11/4/383optical temperature sensingYbNbO<sub>4</sub>:Er<sup>3+</sup> phosphorfluorescence intensity ratio
collection DOAJ
language English
format Article
sources DOAJ
author Heming Ji
Xunze Tang
Haiyan Zhang
Xiaolong Li
Yannan Qian
spellingShingle Heming Ji
Xunze Tang
Haiyan Zhang
Xiaolong Li
Yannan Qian
Optical Temperature Sensing of YbNbO<sub>4</sub>:Er<sup>3+</sup> Phosphors Synthesized by Hydrothermal Method
Coatings
optical temperature sensing
YbNbO<sub>4</sub>:Er<sup>3+</sup> phosphor
fluorescence intensity ratio
author_facet Heming Ji
Xunze Tang
Haiyan Zhang
Xiaolong Li
Yannan Qian
author_sort Heming Ji
title Optical Temperature Sensing of YbNbO<sub>4</sub>:Er<sup>3+</sup> Phosphors Synthesized by Hydrothermal Method
title_short Optical Temperature Sensing of YbNbO<sub>4</sub>:Er<sup>3+</sup> Phosphors Synthesized by Hydrothermal Method
title_full Optical Temperature Sensing of YbNbO<sub>4</sub>:Er<sup>3+</sup> Phosphors Synthesized by Hydrothermal Method
title_fullStr Optical Temperature Sensing of YbNbO<sub>4</sub>:Er<sup>3+</sup> Phosphors Synthesized by Hydrothermal Method
title_full_unstemmed Optical Temperature Sensing of YbNbO<sub>4</sub>:Er<sup>3+</sup> Phosphors Synthesized by Hydrothermal Method
title_sort optical temperature sensing of ybnbo<sub>4</sub>:er<sup>3+</sup> phosphors synthesized by hydrothermal method
publisher MDPI AG
series Coatings
issn 2079-6412
publishDate 2021-03-01
description The novel YbNbO<sub>4</sub>:Er<sup>3+</sup> phosphors were firstly synthesized through the hydrothermal method by adding LiOH·H<sub>2</sub>O as flux in the H<sub>2</sub>O/EG system. YbNbO<sub>4</sub>:Er<sup>3+</sup> phosphors showed the agglomerated irregular polygons coexisting with some tiny grains. XRD and Raman spectra were measured to understand the phase structure and the crystal growth mechanism of YbNbO<sub>4</sub>:Er<sup>3+</sup> phosphors. The upconversion (UC) emission spectra, the pump power dependency and UC mechanism were studied under 980 nm excitation. Based on the fluorescence intensity ratio technique, YbNbO<sub>4</sub>:Er<sup>3+</sup> exhibited the maximum sensor sensitivity of 0.00712 K<sup>−1</sup> at 220 K, providing a promising application in optical low-temperature sensors.
topic optical temperature sensing
YbNbO<sub>4</sub>:Er<sup>3+</sup> phosphor
fluorescence intensity ratio
url https://www.mdpi.com/2079-6412/11/4/383
work_keys_str_mv AT hemingji opticaltemperaturesensingofybnbosub4subersup3supphosphorssynthesizedbyhydrothermalmethod
AT xunzetang opticaltemperaturesensingofybnbosub4subersup3supphosphorssynthesizedbyhydrothermalmethod
AT haiyanzhang opticaltemperaturesensingofybnbosub4subersup3supphosphorssynthesizedbyhydrothermalmethod
AT xiaolongli opticaltemperaturesensingofybnbosub4subersup3supphosphorssynthesizedbyhydrothermalmethod
AT yannanqian opticaltemperaturesensingofybnbosub4subersup3supphosphorssynthesizedbyhydrothermalmethod
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