Terbium doped strontium cerate enabled long period fiber gratings for high temperature sensing of hydrogen

X. T. Wei; Tao Wei; Hai Xiao; Jerry Lin

doi:10.1016/j.snb.2010.12.009

Terbium doped strontium cerate enabled long period fiber gratings for high temperature sensing of hydrogen

X. T. Wei, Tao Wei, Hai Xiao, Jerry Lin

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

9 Scopus citations

Abstract

This paper reports on a novel optical fiber based sensor for hydrogen detection at high temperatures (>600 °C). The optical sensor consists of a perovskite-type ceramic, SrCe_0.95Tb_0.05O _3-δ, as the sensing material, which is coated on the cladding layer of long period fiber gratings. Upon exposure to hydrogen, the reduction of Ce⁴⁺ to Ce³⁺ on the surface of SrCe_0.95Tb _0.05O_3-δ particle causes decrease in its refractive index. As a result, the resonance wavelength of long period fiber gratings shifts to a higher value. The rate of the shift is dependent on the hydrogen partial pressure and can be used as the sensing signal. The high temperature optical H₂ sensor exhibits high sensitivity for H₂ detection at a partial pressure of 0.005 atm, and a short response time. The sensor is reversible as exposing the sensor to air oxidizes Ce³⁺ to Ce⁴⁺.

Original language	English (US)
Pages (from-to)	214-219
Number of pages	6
Journal	Sensors and Actuators, B: Chemical
Volume	152
Issue number	2
DOIs	https://doi.org/10.1016/j.snb.2010.12.009
State	Published - Mar 1 2011

Keywords

Hydrogen
Long period fiber gratings
Optical sensor
Perovskite ceramics
Refractive index

ASJC Scopus subject areas

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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title = "Terbium doped strontium cerate enabled long period fiber gratings for high temperature sensing of hydrogen",

abstract = "This paper reports on a novel optical fiber based sensor for hydrogen detection at high temperatures (>600 °C). The optical sensor consists of a perovskite-type ceramic, SrCe0.95Tb0.05O 3-δ, as the sensing material, which is coated on the cladding layer of long period fiber gratings. Upon exposure to hydrogen, the reduction of Ce4+ to Ce3+ on the surface of SrCe0.95Tb 0.05O3-δ particle causes decrease in its refractive index. As a result, the resonance wavelength of long period fiber gratings shifts to a higher value. The rate of the shift is dependent on the hydrogen partial pressure and can be used as the sensing signal. The high temperature optical H2 sensor exhibits high sensitivity for H2 detection at a partial pressure of 0.005 atm, and a short response time. The sensor is reversible as exposing the sensor to air oxidizes Ce3+ to Ce4+.",

keywords = "Hydrogen, Long period fiber gratings, Optical sensor, Perovskite ceramics, Refractive index",

author = "Wei, {X. T.} and Tao Wei and Hai Xiao and Jerry Lin",

note = "Funding Information: The project was supported by Department of Energy through grant (DE-FC26-O5NT42439). ",

year = "2011",

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doi = "10.1016/j.snb.2010.12.009",

language = "English (US)",

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T1 - Terbium doped strontium cerate enabled long period fiber gratings for high temperature sensing of hydrogen

AU - Wei, X. T.

AU - Wei, Tao

AU - Xiao, Hai

AU - Lin, Jerry

N1 - Funding Information: The project was supported by Department of Energy through grant (DE-FC26-O5NT42439).

PY - 2011/3/1

Y1 - 2011/3/1

N2 - This paper reports on a novel optical fiber based sensor for hydrogen detection at high temperatures (>600 °C). The optical sensor consists of a perovskite-type ceramic, SrCe0.95Tb0.05O 3-δ, as the sensing material, which is coated on the cladding layer of long period fiber gratings. Upon exposure to hydrogen, the reduction of Ce4+ to Ce3+ on the surface of SrCe0.95Tb 0.05O3-δ particle causes decrease in its refractive index. As a result, the resonance wavelength of long period fiber gratings shifts to a higher value. The rate of the shift is dependent on the hydrogen partial pressure and can be used as the sensing signal. The high temperature optical H2 sensor exhibits high sensitivity for H2 detection at a partial pressure of 0.005 atm, and a short response time. The sensor is reversible as exposing the sensor to air oxidizes Ce3+ to Ce4+.

AB - This paper reports on a novel optical fiber based sensor for hydrogen detection at high temperatures (>600 °C). The optical sensor consists of a perovskite-type ceramic, SrCe0.95Tb0.05O 3-δ, as the sensing material, which is coated on the cladding layer of long period fiber gratings. Upon exposure to hydrogen, the reduction of Ce4+ to Ce3+ on the surface of SrCe0.95Tb 0.05O3-δ particle causes decrease in its refractive index. As a result, the resonance wavelength of long period fiber gratings shifts to a higher value. The rate of the shift is dependent on the hydrogen partial pressure and can be used as the sensing signal. The high temperature optical H2 sensor exhibits high sensitivity for H2 detection at a partial pressure of 0.005 atm, and a short response time. The sensor is reversible as exposing the sensor to air oxidizes Ce3+ to Ce4+.

KW - Hydrogen

KW - Long period fiber gratings

KW - Optical sensor

KW - Perovskite ceramics

KW - Refractive index

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Terbium doped strontium cerate enabled long period fiber gratings for high temperature sensing of hydrogen

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Keywords

ASJC Scopus subject areas

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