التفاصيل البيبلوغرافية
| العنوان: |
Evanescent-Field Excited Surface Plasmon-Enhanced U-Bent Fiber Probes Coated with Au and ZnO Nanoparticles for Humidity Detection |
| المؤلفون: |
Elnaz Afsharipour, Kirtiman Deo Malviya, Mohammadreza Montazeri, Ebrahim Mortazy, Ramin Soltanzadeh, Alireza Hassani, Federico Rosei, Mohamed Chaker |
| المصدر: |
Processes; Volume 11; Issue 2; Pages: 642 |
| بيانات النشر: |
Multidisciplinary Digital Publishing Institute |
| سنة النشر: |
2023 |
| المجموعة: |
MDPI Open Access Publishing |
| مصطلحات موضوعية: |
humidity sensor, optical fiber sensor, evanescent-wave sensor, surface plasmon sensor, U-bent fiber sensor, gold(Au) nanoparticles, ZnO nanoparticles, pulsed-laser ablation in liquid (PLAL) |
| جغرافية الموضوع: |
agris |
| الوصف: |
We report the design, fabrication, and testing of a humidity sensor based on an optical fiber-based evanescent wave probe. The fiber was bent into a U-shape and de-cladded at the location of the bending. The de-cladded section was coated either with Au or with ZnO nanoparticles. Humidity is detected based on the interaction in the surface plasmon resonance of the Au/ZnO nanoparticles excited by an evanescent wave of light passing through the optical fiber. The response of the U-bent fibers to humidity was investigated using a specifically designed low-voltage portable interrogation box. We found that the fibers coated with ZnO nanoparticles were able to detect a minimum 0.1% change in humidity with an average sensitivity of 143 µV/%RH and 95% linearity over the 10% to 80% humidity range. In comparison, samples coated with Au and Au + ZnO nanoparticles demonstrated a minimum change detection of 0.3% RH and 2% RH respectively. The response and recovery time of the sensor were measured to be 3 s and 4 s, respectively, for a 60% change in humidity from 20% to 80%. The entire measurement system was operated by consuming an electrical power of 1.62 W at an input voltage of 12 Vdc. |
| نوع الوثيقة: |
text |
| وصف الملف: |
application/pdf |
| اللغة: |
English |
| Relation: |
Materials Processes; https://dx.doi.org/10.3390/pr11020642 |
| DOI: |
10.3390/pr11020642 |
| الاتاحة: |
https://doi.org/10.3390/pr11020642 |
| Rights: |
https://creativecommons.org/licenses/by/4.0/ |
| رقم الانضمام: |
edsbas.28BDE995 |
| قاعدة البيانات: |
BASE |