Open AccessHumidity Effects on the Growth of ZnO Nanorods using Hydrothermal Method
Author(s) -
Mohd Hafiz Jali,
Hazli Rafis Abdul Rahim,
Haziezol Helmi Mohd Yusof,
Ashadi Md Johari,
Siddharth Thokchom,
Sulaiman Wadi Harun
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1552/1/012004
Subject(s) - nanorod , microfiber , materials science , hydrothermal circulation , humidity , nanomaterials , intensity (physics) , zinc , relative humidity , nanotechnology , composite material , chemical engineering , optics , metallurgy , meteorology , physics , engineering
The effects of ZnO nanorod samples with different growth times samples to the morphological structures and output light intensity are reported. The proposed structure comprises of silica microfiber integrated with Zinc Oxide (ZnO) nanorods coated glass surface. The silica microfiber is tapered into constant waist diameter of 10 μm using flame brushing technique. While the glass surface is coated with ZnO nanorods using hydrothermal method for 6 hours, 9 hours, 12 hours, 15 hours and 18 hours growth times. The samples are exposed to the different humidity levels ranging from 35%RH to 85%RH to observe the effect of the morphological structures such as length, diameter and density and the output light intensity. The resulted measurements provide the correlation between the growth time during the synthesis process to the ZnO nanorods physical structure as well as the output light intensity in different humidity levels. It utilizes the unique features of the scattering and surface absorption of the microfiber and ZnO nanomaterials coated glass surface to alter the output light intensity. The reported results may contribute to the optimal ZnO nanorods growth time for humidity sensing applications.