Progress in ZnO Nanosensors

Miaoling Que; Chong Lin; Jiawei Sun; Lixiang Chen; Xiaohong Sun; Yunfei Sun

doi:10.3390/s21165502

Sensors (Aug 2021)

Progress in ZnO Nanosensors

Miaoling Que,
Chong Lin,
Jiawei Sun,
Lixiang Chen,
Xiaohong Sun,
Yunfei Sun

Affiliations

Miaoling Que: College of Electronic and Information Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
Chong Lin: Jiangxi Province Key Laboratory of Polymer Micro/Nano Manufacturing and Devices, School of Chemistry, Biology and Materials Science, East China University of Technology, Nanchang 330013, China
Jiawei Sun: College of Electronic and Information Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
Lixiang Chen: College of Electronic and Information Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
Xiaohong Sun: College of Electronic and Information Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
Yunfei Sun: College of Electronic and Information Engineering, Suzhou University of Science and Technology, Suzhou 215009, China

DOI: https://doi.org/10.3390/s21165502
Journal volume & issue: Vol. 21, no. 16
p. 5502

Abstract

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Developing various nanosensors with superior performance for accurate and sensitive detection of some physical signals is essential for advances in electronic systems. Zinc oxide (ZnO) is a unique semiconductor material with wide bandgap (3.37 eV) and high exciton binding energy (60 meV) at room temperature. ZnO nanostructures have been investigated extensively for possible use as high-performance sensors, due to their excellent optical, piezoelectric and electrochemical properties, as well as the large surface area. In this review, we primarily introduce the morphology and major synthetic methods of ZnO nanomaterials, with a brief discussion of the advantages and weaknesses of each method. Then, we mainly focus on the recent progress in ZnO nanosensors according to the functional classification, including pressure sensor, gas sensor, photoelectric sensor, biosensor and temperature sensor. We provide a comprehensive analysis of the research status and constraints for the development of ZnO nanosensor in each category. Finally, the challenges and future research directions of nanosensors based on ZnO are prospected and summarized. It is of profound significance to research ZnO nanosensors in depth, which will promote the development of artificial intelligence, medical and health, as well as industrial, production.

Published in Sensors

ISSN: 1424-8220 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Technology: Chemical technology
Website: http://www.mdpi.com/journal/sensors

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Abstract

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