Investigating the flexibility of ZnO nanorod growth parameters for humidity sensor design

Mohd Yusof, Haziezol Helmi and Darsono, Abd Majid and Abdul Rahim, Hazli Rafis and Dimyati, Kaharudin and Harun, Sulaiman Wadi (2025) Investigating the flexibility of ZnO nanorod growth parameters for humidity sensor design. International Journal of Academic Research in Business and Social Sciences, 15 (2). pp. 688-701. ISSN 2222-6990

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Abstract

A study on the effect of ZnO nanorod growth conditions on humidity sensing is presented. Glass substrates were coated with triangular ZnO nanorods using a hydrothermal method, with growth durations of 5, 10, and 15 hours, and coating lengths in triangular shape varying from 1 mm to 13 mm. A commercial LED and photodiode were utilized in the measurement setup, functioning as the light source and photodetector, respectively, and interfaced with an Arduino for data processing. Humidity experiments were conducted in a controlled chamber using different combinations of these growth parameters. The results indicated that a combination of 10 hours growth time and 7 mm coating length produced a sensing response comparable to that of a 15-hour growth time and 4 mm coating length at 80% relative humidity. This demonstrates that optimal sensor performance can be achieved through various fabrication settings, suggesting that flexibility in process parameters allows for more efficient and cost-effective sensor design without sacrificing the sensor performance. By offering multiple viable fabrication paths, the process becomes more scalable and versatile, allowing for the design of sensor devices that maintain high sensitivity while optimizing manufacturing efficiency. This is crucial for improving the practicality of ZnO-based humidity sensors in commercial applications.

Item Type:	Article
Divisions:	Faculty Of Electronics And Computer Technology And Engineering
Depositing User:	Norfaradilla Idayu Ab. Ghafar
Date Deposited:	21 Jul 2026 04:04
Last Modified:	21 Jul 2026 04:04
URI:	http://eprints.utem.edu.my/id/eprint/30200
Statistic Details:	View Download Statistic

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