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U-Shaped Optical Fiber Probes Coated with Electrically Doped GQDs for Humidity Measurements
The influence of the bending radius on the sensitivity of the graphene quantum dots (GQDs)-coated probe is experimentally investigated for a U-shaped probe. The fiber is bent into a U shape using the optic fiber flame heating method, and the optic fiber is enclosed in a glass tube to increase the st...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8401709/ https://www.ncbi.nlm.nih.gov/pubmed/34451236 http://dx.doi.org/10.3390/polym13162696 |
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author | Wen, Hsin-Yi Hsu, Hsiang-Cheng Tsai, Yao-Tung Feng, Wen-Kai Lin, Chih-Lang Chiang, Chia-Chin |
author_facet | Wen, Hsin-Yi Hsu, Hsiang-Cheng Tsai, Yao-Tung Feng, Wen-Kai Lin, Chih-Lang Chiang, Chia-Chin |
author_sort | Wen, Hsin-Yi |
collection | PubMed |
description | The influence of the bending radius on the sensitivity of the graphene quantum dots (GQDs)-coated probe is experimentally investigated for a U-shaped probe. The fiber is bent into a U shape using the optic fiber flame heating method, and the optic fiber is enclosed in a glass tube to increase the stability of the probe. The surface of the U-shaped optical fiber was coated with electrospun fibers formed via electrospinning. Polymer materials doped with GQDs are applied to U-shaped optical fiber as humidity sensors. Graphene quantum dot nanofibers on the U-shaped optical fiber sensor to form a network structure of graphene quantum dots U-shape fiber sensor (GQDUS). The polymer network structure absorbs water molecules, which in turn affects the bending radius of the optical fiber, and changes the optical fiber spectrum. Graphene quantum dots provide optical enhancement benefits, which in turn increase the sensitivity of fiber optic sensors. The spectra monitoring system consists of an optical spectrum analyzer (OSA) and an amplified spontaneous emission (ASE). This system can be used to detect humidity changes between 20% RH and 80% RH in the chamber. Our results indicate promising applications for quantum dots probe sensors from electrospun nanofibers increasing sensitive environmental monitoring. As such, it could be of substantial value in optical sensors detection. |
format | Online Article Text |
id | pubmed-8401709 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-84017092021-08-29 U-Shaped Optical Fiber Probes Coated with Electrically Doped GQDs for Humidity Measurements Wen, Hsin-Yi Hsu, Hsiang-Cheng Tsai, Yao-Tung Feng, Wen-Kai Lin, Chih-Lang Chiang, Chia-Chin Polymers (Basel) Article The influence of the bending radius on the sensitivity of the graphene quantum dots (GQDs)-coated probe is experimentally investigated for a U-shaped probe. The fiber is bent into a U shape using the optic fiber flame heating method, and the optic fiber is enclosed in a glass tube to increase the stability of the probe. The surface of the U-shaped optical fiber was coated with electrospun fibers formed via electrospinning. Polymer materials doped with GQDs are applied to U-shaped optical fiber as humidity sensors. Graphene quantum dot nanofibers on the U-shaped optical fiber sensor to form a network structure of graphene quantum dots U-shape fiber sensor (GQDUS). The polymer network structure absorbs water molecules, which in turn affects the bending radius of the optical fiber, and changes the optical fiber spectrum. Graphene quantum dots provide optical enhancement benefits, which in turn increase the sensitivity of fiber optic sensors. The spectra monitoring system consists of an optical spectrum analyzer (OSA) and an amplified spontaneous emission (ASE). This system can be used to detect humidity changes between 20% RH and 80% RH in the chamber. Our results indicate promising applications for quantum dots probe sensors from electrospun nanofibers increasing sensitive environmental monitoring. As such, it could be of substantial value in optical sensors detection. MDPI 2021-08-12 /pmc/articles/PMC8401709/ /pubmed/34451236 http://dx.doi.org/10.3390/polym13162696 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Wen, Hsin-Yi Hsu, Hsiang-Cheng Tsai, Yao-Tung Feng, Wen-Kai Lin, Chih-Lang Chiang, Chia-Chin U-Shaped Optical Fiber Probes Coated with Electrically Doped GQDs for Humidity Measurements |
title | U-Shaped Optical Fiber Probes Coated with Electrically Doped GQDs for Humidity Measurements |
title_full | U-Shaped Optical Fiber Probes Coated with Electrically Doped GQDs for Humidity Measurements |
title_fullStr | U-Shaped Optical Fiber Probes Coated with Electrically Doped GQDs for Humidity Measurements |
title_full_unstemmed | U-Shaped Optical Fiber Probes Coated with Electrically Doped GQDs for Humidity Measurements |
title_short | U-Shaped Optical Fiber Probes Coated with Electrically Doped GQDs for Humidity Measurements |
title_sort | u-shaped optical fiber probes coated with electrically doped gqds for humidity measurements |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8401709/ https://www.ncbi.nlm.nih.gov/pubmed/34451236 http://dx.doi.org/10.3390/polym13162696 |
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