Pr3+-Doped (K0.5Na0.5)NbO3 as a high response optical oxygen sensing agent

Wei Tang; Ye Sun; Shaochen Wang; Baosheng Du; Yongqi Yin; Xiao Liu; Bin Yang; Wenwu Cao; Miao Yu

doi:10.1039/c6tc04216c

Pr³⁺-Doped (K_0.5Na_0.5)NbO₃ as a high response optical oxygen sensing agent

Wei Tang, Ye Sun, Shaochen Wang, Baosheng Du, Yongqi Yin, Xiao Liu, Bin Yang, Wenwu Cao, Miao Yu

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

24 Scopus citations

Abstract

The photoluminescence (PL) properties of post-treated Pr³⁺-doped (K_0.5Na_0.5)NbO₃ (KNN:Pr³⁺) have been investigated for oxygen sensing. It is found that both the intensity ratio of the ¹D₂-³H₄ red emission to the ³P₀-³H₄ blue-green emission and their absolute intensity have a strong response to oxygen adsorption at room temperature and elevated temperature. Especially, at 165 °C, the ¹D₂-³H₄ emission intensity measured in a 100% O₂ atmosphere was ∼3 folds higher than that in 100% N₂, which is the highest response in all PL-based gas sensing oxides reported so far. Moreover, the high oxygen-sensing recoverability and reproducibility have been demonstrated. It is proposed that the intervalence charge transfer mechanism plays a key role in sensing. Together with the inherent ferroelectric and PL properties of KNN:Pr³⁺, the product may hold considerable potential in multifunctional devices.

Original language	English (US)
Pages (from-to)	11508-11513
Number of pages	6
Journal	Journal of Materials Chemistry C
Volume	4
Issue number	48
DOIs	https://doi.org/10.1039/c6tc04216c
State	Published - 2016

All Science Journal Classification (ASJC) codes

General Chemistry
Materials Chemistry

Access to Document

10.1039/c6tc04216c

Cite this

@article{95088ad23c02400e8561dac943aefcfc,

title = "Pr3+-Doped (K0.5Na0.5)NbO3 as a high response optical oxygen sensing agent",

abstract = "The photoluminescence (PL) properties of post-treated Pr3+-doped (K0.5Na0.5)NbO3 (KNN:Pr3+) have been investigated for oxygen sensing. It is found that both the intensity ratio of the 1D2-3H4 red emission to the 3P0-3H4 blue-green emission and their absolute intensity have a strong response to oxygen adsorption at room temperature and elevated temperature. Especially, at 165 °C, the 1D2-3H4 emission intensity measured in a 100% O2 atmosphere was ∼3 folds higher than that in 100% N2, which is the highest response in all PL-based gas sensing oxides reported so far. Moreover, the high oxygen-sensing recoverability and reproducibility have been demonstrated. It is proposed that the intervalence charge transfer mechanism plays a key role in sensing. Together with the inherent ferroelectric and PL properties of KNN:Pr3+, the product may hold considerable potential in multifunctional devices.",

author = "Wei Tang and Ye Sun and Shaochen Wang and Baosheng Du and Yongqi Yin and Xiao Liu and Bin Yang and Wenwu Cao and Miao Yu",

note = "Publisher Copyright: {\textcopyright} The Royal Society of Chemistry.",

year = "2016",

doi = "10.1039/c6tc04216c",

language = "English (US)",

volume = "4",

pages = "11508--11513",

journal = "Journal of Materials Chemistry C",

issn = "2050-7534",

publisher = "Royal Society of Chemistry",

number = "48",

}

TY - JOUR

T1 - Pr3+-Doped (K0.5Na0.5)NbO3 as a high response optical oxygen sensing agent

AU - Tang, Wei

AU - Sun, Ye

AU - Wang, Shaochen

AU - Du, Baosheng

AU - Yin, Yongqi

AU - Liu, Xiao

AU - Yang, Bin

AU - Cao, Wenwu

AU - Yu, Miao

PY - 2016

Y1 - 2016

N2 - The photoluminescence (PL) properties of post-treated Pr3+-doped (K0.5Na0.5)NbO3 (KNN:Pr3+) have been investigated for oxygen sensing. It is found that both the intensity ratio of the 1D2-3H4 red emission to the 3P0-3H4 blue-green emission and their absolute intensity have a strong response to oxygen adsorption at room temperature and elevated temperature. Especially, at 165 °C, the 1D2-3H4 emission intensity measured in a 100% O2 atmosphere was ∼3 folds higher than that in 100% N2, which is the highest response in all PL-based gas sensing oxides reported so far. Moreover, the high oxygen-sensing recoverability and reproducibility have been demonstrated. It is proposed that the intervalence charge transfer mechanism plays a key role in sensing. Together with the inherent ferroelectric and PL properties of KNN:Pr3+, the product may hold considerable potential in multifunctional devices.

AB - The photoluminescence (PL) properties of post-treated Pr3+-doped (K0.5Na0.5)NbO3 (KNN:Pr3+) have been investigated for oxygen sensing. It is found that both the intensity ratio of the 1D2-3H4 red emission to the 3P0-3H4 blue-green emission and their absolute intensity have a strong response to oxygen adsorption at room temperature and elevated temperature. Especially, at 165 °C, the 1D2-3H4 emission intensity measured in a 100% O2 atmosphere was ∼3 folds higher than that in 100% N2, which is the highest response in all PL-based gas sensing oxides reported so far. Moreover, the high oxygen-sensing recoverability and reproducibility have been demonstrated. It is proposed that the intervalence charge transfer mechanism plays a key role in sensing. Together with the inherent ferroelectric and PL properties of KNN:Pr3+, the product may hold considerable potential in multifunctional devices.

UR - http://www.scopus.com/inward/record.url?scp=85004065508&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85004065508&partnerID=8YFLogxK

U2 - 10.1039/c6tc04216c

DO - 10.1039/c6tc04216c

M3 - Article

AN - SCOPUS:85004065508

SN - 2050-7534

VL - 4

SP - 11508

EP - 11513

JO - Journal of Materials Chemistry C

JF - Journal of Materials Chemistry C

IS - 48

ER -

Pr³⁺-Doped (K_0.5Na_0.5)NbO₃ as a high response optical oxygen sensing agent

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this