Graphitic Carbon Nitride for Enhancing Humidity Sensing of Microfibers

Graphitic carbon nitride (g-CN) nanosheet is a potential material for sensing applications. The g-CN nanosheet films deposited on microfibers were first fabricated and employed for relative humidity (RH) optical sensing. The RH sensitivity of microfibers was significantly enhanced via g-CN nanosheet...

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Published in:Journal of lightwave technology 2021-06, Vol.39 (12), p.3896-3902
Main Authors: Yan, Zhengyu, Wang, Caoyuan, Yu, Ruowei, Hu, Zixian, Xiao, Limin
Format: Article
Language:English
Subjects:
Carbon
Carbon nitride
Fast response time
graphitic carbon nitride
Humidity
microfiber
Microfibers
Nanosheets
Optical fiber sensors
Optical fibers
Optical surface waves
Recovery time
Relative humidity
relative humidity sensor
Response time
Surface treatment
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cited_by cdi_FETCH-LOGICAL-c291t-3df837c4f56aed13df9e07d4f84753325d991fb526e3ae3ce3b782cc248cbdcc3
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container_end_page 3902
container_issue 12
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container_title Journal of lightwave technology
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creator Yan, Zhengyu
Wang, Caoyuan
Yu, Ruowei
Hu, Zixian
Xiao, Limin
description Graphitic carbon nitride (g-CN) nanosheet is a potential material for sensing applications. The g-CN nanosheet films deposited on microfibers were first fabricated and employed for relative humidity (RH) optical sensing. The RH sensitivity of microfibers was significantly enhanced via g-CN nanosheet coating, the optical transmitted power of coated microfiber humidity sensor was changed ∼10.6 dB when the RH varied from 40% to 95%. In addition, fast response time of 0.43 s and recovery time of 0.87 s were demonstrated by monitoring human breathing. The g-CN nanosheet coated microfiber humidity sensor possesses excellent stability, repeatability, reversibility, and cost-effectivity. The experimental results validate that the microfiber combined with g-CN nanosheets is a promising platform for environmental and biological RH sensing applications.
doi_str_mv 10.1109/JLT.2020.3028307
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source IEEE Xplore (Online service)
subjects Carbon
Carbon nitride
Fast response time
graphitic carbon nitride
Humidity
microfiber
Microfibers
Nanosheets
Optical fiber sensors
Optical fibers
Optical surface waves
Recovery time
Relative humidity
relative humidity sensor
Response time
Surface treatment
title Graphitic Carbon Nitride for Enhancing Humidity Sensing of Microfibers
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