ZnO nanorods coated tapered U-shape plastic optical fiber for relative humidity detection

• Main Authors: Johari, Siti Halma, Cheak, Tiu Zian, Rahim, Hazli Rafis Abdul, Jali, Mohd Hafiz, Yusof, Haziezol Helmi Mohd, Johari, Md Ashadi Md, Yasin, Moh, Harun, Sulaiman Wadi
• Format: Article
• Published: MDPI 2022
• Subjects: TK Electrical engineering. Electronics Nuclear engineering
• Online Access: http://eprints.um.edu.my/40742/
• Institution: Universiti Malaya

A relative humidity sensor was fabricated by exploiting an evanescent wave (EW) on a U-bent tapered plastic optical fiber (POF) coated with zinc oxide (ZnO) nanorods. The POF was tapered manually using a polishing method to a diameter of 0.5 mm, a length of 5 cm, and a radius of 5 cm. ZnO nanorods w...