ZnO nano-structured based devices for chemical and optical sensing applications

Sha, R. and Badhulika, Sushmee and et al, . (2022) ZnO nano-structured based devices for chemical and optical sensing applications. Sensors and Actuators Reports, 4. pp. 1-19. ISSN 26660539

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Abstract

Zinc oxide (ZnO), a direct, wide band gap and n-type metal oxide semiconductor, is being anticipated as the next generation functional nano-material towards remarkably diversified sensing applications. ZnO and its composites have revealed a new era in the fabrication of sensors owing to their excellent opto-electronic, physicochemical, electrical properties such as low dielectric constant, plentiful Zn-O bonds, high luminous transmittance, good physicochemical stability, huge excitation binding energy, non-toxicity, biocompatibility, large surface area to volume ratio and so on. This comprehensive review summarizes the applications of ZnO nano-structures in the areas of environmental monitoring, biomedical, and optical sensing. Fundamental sensing mechanisms of the ZnO based sensors are examined to provide a better insight into the role of ZnO in each of these sensors. Wherever relevant, limitations of the existing approaches and future outlook have also been discussed. © 2022

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IITH Creators:
IITH CreatorsORCiD
Badhulika, Sushmeehttps://orcid.org/0000-0003-3237-3031
Item Type: Article
Uncontrolled Keywords: Biomedical, Environmental monitoring, Photodetector, Sensors, Solar cell, ZnO
Subjects: Others > Optical design & engineering
Electrical Engineering
Divisions: Department of Electrical Engineering
Depositing User: . LibTrainee 2021
Date Deposited: 17 Jun 2022 06:26
Last Modified: 17 Jun 2022 09:32
URI: http://raiith.iith.ac.in/id/eprint/9301
Publisher URL: https://doi.org/10.1016/j.snr.2022.100098
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