Quantum dots (QDs); gas sensor; toxic gas; sensing mechanism
Issue Date
2022-06
Publisher
MDPI
Citation
SENSORS, v. 22, NO. 12, article no. 4369, Page. 1-24
Abstract
Quantum dots (QDs) are used progressively in sensing areas because of their special electrical properties due to their extremely small size. This paper discusses the gas sensing features of QD-based resistive sensors. Different types of pristine, doped, composite, and noble metal decorated QDs are discussed. In particular, the review focus primarily on the sensing mechanisms suggested for these gas sensors. QDs show a high sensing performance at generally low temperatures owing to their extremely small sizes, making them promising materials for the realization of reliable and high-output gas-sensing devices.