Chalcogenide glass-tapered fiber sensor modified by graphene oxide doped with platinum nanoparticles for high-sensitivity measurement
An innovative Ge15Sb20Se65 glass tapered fiber sensor functionalized by graphene oxide (GO) doped with platinum nanoparticles (Pt) for ethanol monitoring is proposed. As the tapered fiber region is immersed into ethanol solution, molecules of ethanol will be enriched in the Pt/GO coating. Sensing me...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-04-01
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| Series: | Results in Physics |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2211379723001419 |
| _version_ | 1797852005361778688 |
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| author | Xiaomei Wang Chaoqi Wang Shixun Dai |
| author_facet | Xiaomei Wang Chaoqi Wang Shixun Dai |
| author_sort | Xiaomei Wang |
| collection | DOAJ |
| description | An innovative Ge15Sb20Se65 glass tapered fiber sensor functionalized by graphene oxide (GO) doped with platinum nanoparticles (Pt) for ethanol monitoring is proposed. As the tapered fiber region is immersed into ethanol solution, molecules of ethanol will be enriched in the Pt/GO coating. Sensing mechanism is based on the variation of refractive index caused by charge transfer, enhancing the evanescent field intensity of tapered fiber surface react with ethanol molecule. The results of experiment indicate that an increment of coating time can elevate sensing sensitivity. Moreover, the existence of platinum (Pt) nanoparticles as photocatalyst can facilitate the electron transfer from the molecule into the GO layer, promoting the infrared (IR) absorption of the molecules of ethanol. The sensing sensitivity of tapered fiber evanescent wave sensor modified by Pt/GO to monitor ethanol is increased significantly to 2.45E-3 a.u./%, which is 2.43 times of GO-coated sensor, and 7 times of uncoated sensor. Further, the sensing properties of tapered fiber evanescent wave sensor deposited with Pt/GO and GO were numerically simulated. |
| first_indexed | 2024-04-09T19:25:55Z |
| format | Article |
| id | doaj.art-bcfce55fdc2448d1ab1745874b370f81 |
| institution | Directory Open Access Journal |
| issn | 2211-3797 |
| language | English |
| last_indexed | 2024-04-09T19:25:55Z |
| publishDate | 2023-04-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Physics |
| spelling | doaj.art-bcfce55fdc2448d1ab1745874b370f812023-04-05T08:12:25ZengElsevierResults in Physics2211-37972023-04-0147106348Chalcogenide glass-tapered fiber sensor modified by graphene oxide doped with platinum nanoparticles for high-sensitivity measurementXiaomei Wang0Chaoqi Wang1Shixun Dai2Laboratory of Infrared Material and Devices, The Research Institute of Advanced Technologies, Ningbo University, Ningbo 315211, China; Key Laboratory of Photoelectric Materials and Devices of Zhejiang Province, Ningbo 315211, ChinaLaboratory of Infrared Material and Devices, The Research Institute of Advanced Technologies, Ningbo University, Ningbo 315211, China; Key Laboratory of Photoelectric Materials and Devices of Zhejiang Province, Ningbo 315211, ChinaCorresponding author.; Laboratory of Infrared Material and Devices, The Research Institute of Advanced Technologies, Ningbo University, Ningbo 315211, China; Key Laboratory of Photoelectric Materials and Devices of Zhejiang Province, Ningbo 315211, ChinaAn innovative Ge15Sb20Se65 glass tapered fiber sensor functionalized by graphene oxide (GO) doped with platinum nanoparticles (Pt) for ethanol monitoring is proposed. As the tapered fiber region is immersed into ethanol solution, molecules of ethanol will be enriched in the Pt/GO coating. Sensing mechanism is based on the variation of refractive index caused by charge transfer, enhancing the evanescent field intensity of tapered fiber surface react with ethanol molecule. The results of experiment indicate that an increment of coating time can elevate sensing sensitivity. Moreover, the existence of platinum (Pt) nanoparticles as photocatalyst can facilitate the electron transfer from the molecule into the GO layer, promoting the infrared (IR) absorption of the molecules of ethanol. The sensing sensitivity of tapered fiber evanescent wave sensor modified by Pt/GO to monitor ethanol is increased significantly to 2.45E-3 a.u./%, which is 2.43 times of GO-coated sensor, and 7 times of uncoated sensor. Further, the sensing properties of tapered fiber evanescent wave sensor deposited with Pt/GO and GO were numerically simulated.http://www.sciencedirect.com/science/article/pii/S2211379723001419Chalcogenide fiberTaperedSensorPlatinumGraphene oxideSensitivity |
| spellingShingle | Xiaomei Wang Chaoqi Wang Shixun Dai Chalcogenide glass-tapered fiber sensor modified by graphene oxide doped with platinum nanoparticles for high-sensitivity measurement Results in Physics Chalcogenide fiber Tapered Sensor Platinum Graphene oxide Sensitivity |
| title | Chalcogenide glass-tapered fiber sensor modified by graphene oxide doped with platinum nanoparticles for high-sensitivity measurement |
| title_full | Chalcogenide glass-tapered fiber sensor modified by graphene oxide doped with platinum nanoparticles for high-sensitivity measurement |
| title_fullStr | Chalcogenide glass-tapered fiber sensor modified by graphene oxide doped with platinum nanoparticles for high-sensitivity measurement |
| title_full_unstemmed | Chalcogenide glass-tapered fiber sensor modified by graphene oxide doped with platinum nanoparticles for high-sensitivity measurement |
| title_short | Chalcogenide glass-tapered fiber sensor modified by graphene oxide doped with platinum nanoparticles for high-sensitivity measurement |
| title_sort | chalcogenide glass tapered fiber sensor modified by graphene oxide doped with platinum nanoparticles for high sensitivity measurement |
| topic | Chalcogenide fiber Tapered Sensor Platinum Graphene oxide Sensitivity |
| url | http://www.sciencedirect.com/science/article/pii/S2211379723001419 |
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