Optical temperature sensing through the upconversion luminescence from Ho3+/Yb3+ codoped CaWO4

Wei Xu; Hua Zhao; Yaxin Li; Longjiang Zheng; Zhiguo Zhang; Wenwu Cao

doi:10.1016/j.snb.2013.07.094

Optical temperature sensing through the upconversion luminescence from Ho³⁺/Yb³⁺ codoped CaWO₄

Wei Xu, Hua Zhao, Yaxin Li, Longjiang Zheng, Zhiguo Zhang, Wenwu Cao

Research output: Contribution to journal › Article › peer-review

250 Scopus citations

Abstract

Under 980 nm diode laser excitation, efficient upconversion emissions from the Ho³⁺/Yb³⁺ codoped CaWO₄ phosphor were obtained. The upconversion quantum efficiency was evaluated to be about 3.3% when the power density of the excitation laser was 47 W/cm². Additionally, temperature dependent blue emissions from the ⁵F _2,3/³K₈ and ⁵G₆/ ⁵F₁ states of Ho³⁺ ions were studied in the range of 303-923 K. The result demonstrated that using the ratio between the blue luminescence intensities of Ho³⁺ ions, the sensitivity and the accuracy for optical thermometry achieved here are superior to the previously reported Er³⁺ green fluorescence based optical temperature sensors.

Original language	English (US)
Pages (from-to)	1096-1100
Number of pages	5
Journal	Sensors and Actuators, B: Chemical
Volume	188
DOIs	https://doi.org/10.1016/j.snb.2013.07.094
State	Published - 2013

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Instrumentation
Condensed Matter Physics
Surfaces, Coatings and Films
Metals and Alloys
Electrical and Electronic Engineering
Materials Chemistry

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10.1016/j.snb.2013.07.094

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title = "Optical temperature sensing through the upconversion luminescence from Ho3+/Yb3+ codoped CaWO4",

abstract = "Under 980 nm diode laser excitation, efficient upconversion emissions from the Ho3+/Yb3+ codoped CaWO4 phosphor were obtained. The upconversion quantum efficiency was evaluated to be about 3.3% when the power density of the excitation laser was 47 W/cm2. Additionally, temperature dependent blue emissions from the 5F 2,3/3K8 and 5G6/ 5F1 states of Ho3+ ions were studied in the range of 303-923 K. The result demonstrated that using the ratio between the blue luminescence intensities of Ho3+ ions, the sensitivity and the accuracy for optical thermometry achieved here are superior to the previously reported Er3+ green fluorescence based optical temperature sensors.",

author = "Wei Xu and Hua Zhao and Yaxin Li and Longjiang Zheng and Zhiguo Zhang and Wenwu Cao",

note = "Funding Information: This research was supported by the National Key Basic Research Program of China (973 program) under Grant No. 2013CB632900 . ",

year = "2013",

doi = "10.1016/j.snb.2013.07.094",

language = "English (US)",

volume = "188",

pages = "1096--1100",

journal = "Sensors and Actuators, B: Chemical",

issn = "0925-4005",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Optical temperature sensing through the upconversion luminescence from Ho3+/Yb3+ codoped CaWO4

AU - Xu, Wei

AU - Zhao, Hua

AU - Li, Yaxin

AU - Zheng, Longjiang

AU - Zhang, Zhiguo

AU - Cao, Wenwu

N1 - Funding Information: This research was supported by the National Key Basic Research Program of China (973 program) under Grant No. 2013CB632900 .

PY - 2013

Y1 - 2013

N2 - Under 980 nm diode laser excitation, efficient upconversion emissions from the Ho3+/Yb3+ codoped CaWO4 phosphor were obtained. The upconversion quantum efficiency was evaluated to be about 3.3% when the power density of the excitation laser was 47 W/cm2. Additionally, temperature dependent blue emissions from the 5F 2,3/3K8 and 5G6/ 5F1 states of Ho3+ ions were studied in the range of 303-923 K. The result demonstrated that using the ratio between the blue luminescence intensities of Ho3+ ions, the sensitivity and the accuracy for optical thermometry achieved here are superior to the previously reported Er3+ green fluorescence based optical temperature sensors.

AB - Under 980 nm diode laser excitation, efficient upconversion emissions from the Ho3+/Yb3+ codoped CaWO4 phosphor were obtained. The upconversion quantum efficiency was evaluated to be about 3.3% when the power density of the excitation laser was 47 W/cm2. Additionally, temperature dependent blue emissions from the 5F 2,3/3K8 and 5G6/ 5F1 states of Ho3+ ions were studied in the range of 303-923 K. The result demonstrated that using the ratio between the blue luminescence intensities of Ho3+ ions, the sensitivity and the accuracy for optical thermometry achieved here are superior to the previously reported Er3+ green fluorescence based optical temperature sensors.

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JO - Sensors and Actuators, B: Chemical

JF - Sensors and Actuators, B: Chemical

ER -

Optical temperature sensing through the upconversion luminescence from Ho³⁺/Yb³⁺ codoped CaWO₄

Abstract

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