Controlled growth of semiconducting ZnO nanorods for piezoelectric energy harvesting-based nanogenerators

Abubakar, Shamsu and Tan, Sin Tee and Liew, Josephine Ying Chyi and Talib, Zainal Abidin and Sivasubramanian, Ramsundar and Vaithilingam, Chockalingam Aravind and Indira, Sridhar Sripadmanabhan and Oh, Won-Chun and Siburian, Rikson and Sagadevan, Suresh and Paiman, Suriati (2023) Controlled growth of semiconducting ZnO nanorods for piezoelectric energy harvesting-based nanogenerators. Nanomaterials, 13 (6). ISSN 2079-4991, DOI

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Zinc oxide (ZnO) nanorods have attracted considerable attention in recent years owing to their piezoelectric properties and potential applications in energy harvesting, sensing, and nanogenerators. Piezoelectric energy harvesting-based nanogenerators have emerged as promising new devices capable of converting mechanical energy into electric energy via nanoscale characterizations such as piezoresponse force microscopy (PFM). This technique was used to study the piezoresponse generated when an electric field was applied to the nanorods using a PFM probe. However, this work focuses on intensive studies that have been reported on the synthesis of ZnO nanostructures with controlled morphologies and their subsequent influence on piezoelectric nanogenerators. It is important to note that the diatomic nature of zinc oxide as a potential solid semiconductor and its electromechanical influence are the two main phenomena that drive the mechanism of any piezoelectric device. The results of our findings confirm that the performance of piezoelectric devices can be significantly improved by controlling the morphology and initial growth conditions of ZnO nanorods, particularly in terms of the magnitude of the piezoelectric coefficient factor (d33). Moreover, from this review, a proposed facile synthesis of ZnO nanorods, suitably produced to improve coupling and switchable polarization in piezoelectric devices, has been reported.

Item Type: Article
Uncontrolled Keywords: thin film deposition; ZnO nanorods growth; nanogenerator; PFM characterizations; piezoelectric coefficient (d33)
Subjects: Q Science > QC Physics
Q Science > QD Chemistry
Divisions: Deputy Vice Chancellor (Research & Innovation) Office > Nanotechnology & Catalysis Research Centre
Depositing User: Ms Zaharah Ramly
Date Deposited: 22 Nov 2023 06:13
Last Modified: 22 Nov 2023 06:13

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