期刊
SENSORS
卷 21, 期 16, 页码 -出版社
MDPI
DOI: 10.3390/s21165502
关键词
ZnO nanostructure; synthetic method; pressure sensor; gas sensor; photoelectric sensor; biosensor; temperature sensor
资金
- Foundation of Jiangsu Provincial Department of Science and Technology [BK20180966]
- Foundation of Jiangxi Provincial Department of Science and Technology [20202BAB212001]
- National Natural Science Foundation of China [22008029]
- Qing Lan Project of Jiangsu Province
Developing various nanosensors with superior performance is crucial for accurate and sensitive detection of physical signals in electronic systems. Zinc oxide (ZnO) has unique semiconductor properties that have led to extensive research on its use as high-performance sensors. This review introduces the morphology and synthetic methods of ZnO nanomaterials, discusses their advantages and weaknesses, and focuses on recent progress in functional classification of ZnO nanosensors.
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.
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