Improved optical thermometry in Er3+:Y2O3 nanocrystals by re-calcination

Lu Liu; Yujin Chen; Xinlu Zhang; Zhenguo Zhang; Yuxiao Wang

doi:10.1016/j.optcom.2013.07.023

Improved optical thermometry in Er³⁺:Y₂O₃ nanocrystals by re-calcination

Lu Liu^*
, Yujin Chen
, Xinlu Zhang
, Zhenguo Zhang
, Yuxiao Wang

^*Corresponding author for this work

School of Physics

Harbin Engineering University

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

19 Scopus citations

Abstract

Variations of fluorescence intensity ratio of green upconversion emissions in Er³⁺:Y₂O₃ nanocrystals and their bulk counterpart have been studied as a function of temperature. In the temperature range of 323-773 K, the maximum sensitivity of about 0.003 K^-1 is obtained in the samples synthesized by the conventional sol-gel method at 800 C. It is found that the upconversion emission is enhanced by a factor of about 56 after re-calcining the conventional samples at 1300 C. Besides that, the sensitivity is increased to the value of about 0.004 K^-1, and the sensing accuracy is also improved. With efficient upconversion luminescence, high degree of sensitivity and accuracy, Er³⁺ doped Y ₂O₃ bulk counterpart show promising application in nanoscale thermal sensor.

Original language	English
Pages (from-to)	90-94
Number of pages	5
Journal	Optics Communications
Volume	309
DOIs	https://doi.org/10.1016/j.optcom.2013.07.023
State	Published - 2013

Keywords

Fluorescence intensity ratio
Sensitivity
Temperature sensing
Upconversion

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10.1016/j.optcom.2013.07.023

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title = "Improved optical thermometry in Er3+:Y2O3 nanocrystals by re-calcination",

abstract = "Variations of fluorescence intensity ratio of green upconversion emissions in Er3+:Y2O3 nanocrystals and their bulk counterpart have been studied as a function of temperature. In the temperature range of 323-773 K, the maximum sensitivity of about 0.003 K-1 is obtained in the samples synthesized by the conventional sol-gel method at 800 C. It is found that the upconversion emission is enhanced by a factor of about 56 after re-calcining the conventional samples at 1300 C. Besides that, the sensitivity is increased to the value of about 0.004 K-1, and the sensing accuracy is also improved. With efficient upconversion luminescence, high degree of sensitivity and accuracy, Er3+ doped Y 2O3 bulk counterpart show promising application in nanoscale thermal sensor.",

keywords = "Fluorescence intensity ratio, Sensitivity, Temperature sensing, Upconversion",

author = "Lu Liu and Yujin Chen and Xinlu Zhang and Zhenguo Zhang and Yuxiao Wang",

year = "2013",

doi = "10.1016/j.optcom.2013.07.023",

language = "英语",

volume = "309",

pages = "90--94",

journal = "Optics Communications",

issn = "0030-4018",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Improved optical thermometry in Er3+:Y2O3 nanocrystals by re-calcination

AU - Liu, Lu

AU - Chen, Yujin

AU - Zhang, Xinlu

AU - Zhang, Zhenguo

AU - Wang, Yuxiao

PY - 2013

Y1 - 2013

N2 - Variations of fluorescence intensity ratio of green upconversion emissions in Er3+:Y2O3 nanocrystals and their bulk counterpart have been studied as a function of temperature. In the temperature range of 323-773 K, the maximum sensitivity of about 0.003 K-1 is obtained in the samples synthesized by the conventional sol-gel method at 800 C. It is found that the upconversion emission is enhanced by a factor of about 56 after re-calcining the conventional samples at 1300 C. Besides that, the sensitivity is increased to the value of about 0.004 K-1, and the sensing accuracy is also improved. With efficient upconversion luminescence, high degree of sensitivity and accuracy, Er3+ doped Y 2O3 bulk counterpart show promising application in nanoscale thermal sensor.

AB - Variations of fluorescence intensity ratio of green upconversion emissions in Er3+:Y2O3 nanocrystals and their bulk counterpart have been studied as a function of temperature. In the temperature range of 323-773 K, the maximum sensitivity of about 0.003 K-1 is obtained in the samples synthesized by the conventional sol-gel method at 800 C. It is found that the upconversion emission is enhanced by a factor of about 56 after re-calcining the conventional samples at 1300 C. Besides that, the sensitivity is increased to the value of about 0.004 K-1, and the sensing accuracy is also improved. With efficient upconversion luminescence, high degree of sensitivity and accuracy, Er3+ doped Y 2O3 bulk counterpart show promising application in nanoscale thermal sensor.

KW - Fluorescence intensity ratio

KW - Sensitivity

KW - Temperature sensing

KW - Upconversion

UR - https://www.scopus.com/pages/publications/84881134301

U2 - 10.1016/j.optcom.2013.07.023

DO - 10.1016/j.optcom.2013.07.023

M3 - 文章

AN - SCOPUS:84881134301

SN - 0030-4018

VL - 309

SP - 90

EP - 94

JO - Optics Communications

JF - Optics Communications

ER -

Improved optical thermometry in Er³⁺:Y₂O₃ nanocrystals by re-calcination

Abstract

Keywords

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