Highly Sensitive Humidity Sensor Based on a GO/Co-MOF-74 Coated Long Period Fiber Grating

Jingci Yan; Jijun Feng; Jinman Ge; Jian Chen; Feng Wang; Caiwei Xiang; Ding Wang; Qinghua Yu; Heping Zeng

doi:10.1109/LPT.2021.3139114

Highly Sensitive Humidity Sensor Based on a GO/Co-MOF-74 Coated Long Period Fiber Grating

Jingci Yan, Jijun Feng, Jinman Ge, Jian Chen, Feng Wang, Caiwei Xiang, Ding Wang, Qinghua Yu, Heping Zeng

Institute for Advanced Study in Precision Spectroscopy

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

27 Scopus citations

Abstract

A humidity sensor based on graphene oxide (GO)/Co-MOF-74 coated long period fiber grating is experimentally demonstrated. The long period fiber grating is prepared by CO2 laser direct writing method, with GO/Co-MOF-74 composite humidity sensitive material coated around the grating region. Combination of GO and Co-MOF-74 with porous structure can absorb water molecules effectively and improve the sensitivity. A high humidity sensitivity of 0.204 nm/%RH can be realized in the RH range of 30-50% as well as a value of 0.16 dB/%RH in the range of 50-90%, both with a linearity of more than 0.98. The proposed highly sensitive humidity sensor also shows a good performance in the stability and repeatability.

Original language	English
Pages (from-to)	77-80
Number of pages	4
Journal	IEEE Photonics Technology Letters
Volume	34
Issue number	2
DOIs	https://doi.org/10.1109/LPT.2021.3139114
State	Published - 15 Jan 2022

Keywords

Co-MOF-74
Graphene oxide (GO)
Humidity sensor
Long period fiber grating (LPFG)

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10.1109/LPT.2021.3139114

Cite this

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title = "Highly Sensitive Humidity Sensor Based on a GO/Co-MOF-74 Coated Long Period Fiber Grating",

abstract = "A humidity sensor based on graphene oxide (GO)/Co-MOF-74 coated long period fiber grating is experimentally demonstrated. The long period fiber grating is prepared by CO2 laser direct writing method, with GO/Co-MOF-74 composite humidity sensitive material coated around the grating region. Combination of GO and Co-MOF-74 with porous structure can absorb water molecules effectively and improve the sensitivity. A high humidity sensitivity of 0.204 nm/\%RH can be realized in the RH range of 30-50\% as well as a value of 0.16 dB/\%RH in the range of 50-90\%, both with a linearity of more than 0.98. The proposed highly sensitive humidity sensor also shows a good performance in the stability and repeatability.",

keywords = "Co-MOF-74, Graphene oxide (GO), Humidity sensor, Long period fiber grating (LPFG)",

author = "Jingci Yan and Jijun Feng and Jinman Ge and Jian Chen and Feng Wang and Caiwei Xiang and Ding Wang and Qinghua Yu and Heping Zeng",

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T1 - Highly Sensitive Humidity Sensor Based on a GO/Co-MOF-74 Coated Long Period Fiber Grating

AU - Yan, Jingci

AU - Feng, Jijun

AU - Ge, Jinman

AU - Chen, Jian

AU - Wang, Feng

AU - Xiang, Caiwei

AU - Wang, Ding

AU - Yu, Qinghua

AU - Zeng, Heping

PY - 2022/1/15

Y1 - 2022/1/15

N2 - A humidity sensor based on graphene oxide (GO)/Co-MOF-74 coated long period fiber grating is experimentally demonstrated. The long period fiber grating is prepared by CO2 laser direct writing method, with GO/Co-MOF-74 composite humidity sensitive material coated around the grating region. Combination of GO and Co-MOF-74 with porous structure can absorb water molecules effectively and improve the sensitivity. A high humidity sensitivity of 0.204 nm/%RH can be realized in the RH range of 30-50% as well as a value of 0.16 dB/%RH in the range of 50-90%, both with a linearity of more than 0.98. The proposed highly sensitive humidity sensor also shows a good performance in the stability and repeatability.

AB - A humidity sensor based on graphene oxide (GO)/Co-MOF-74 coated long period fiber grating is experimentally demonstrated. The long period fiber grating is prepared by CO2 laser direct writing method, with GO/Co-MOF-74 composite humidity sensitive material coated around the grating region. Combination of GO and Co-MOF-74 with porous structure can absorb water molecules effectively and improve the sensitivity. A high humidity sensitivity of 0.204 nm/%RH can be realized in the RH range of 30-50% as well as a value of 0.16 dB/%RH in the range of 50-90%, both with a linearity of more than 0.98. The proposed highly sensitive humidity sensor also shows a good performance in the stability and repeatability.

KW - Co-MOF-74

KW - Graphene oxide (GO)

KW - Humidity sensor

KW - Long period fiber grating (LPFG)

UR - https://www.scopus.com/pages/publications/85122331054

U2 - 10.1109/LPT.2021.3139114

DO - 10.1109/LPT.2021.3139114

M3 - 文章

AN - SCOPUS:85122331054

SN - 1041-1135

VL - 34

SP - 77

EP - 80

JO - IEEE Photonics Technology Letters

JF - IEEE Photonics Technology Letters

IS - 2

ER -

Highly Sensitive Humidity Sensor Based on a GO/Co-MOF-74 Coated Long Period Fiber Grating

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Keywords

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