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Gas Sensors Based on Chemi-Resistive Hybrid Functional Nanomaterials

2020; Springer Science+Business Media; Volume: 12; Issue: 1 Linguagem: Inglês

10.1007/s40820-020-0407-5

2311-6706

Yingying Jian, Wenwen Hu, Zhenhuan Zhao, Pengfei Cheng, Hossam Haick, Ming‐Shui Yao, Weiwei Wu,

Advanced Chemical Sensor Technologies

Abstract Chemi-resistive sensors based on hybrid functional materials are promising candidates for gas sensing with high responsivity, good selectivity, fast response/recovery, great stability/repeatability, room-working temperature, low cost, and easy-to-fabricate, for versatile applications. This progress report reviews the advantages and advances of these sensing structures compared with the single constituent, according to five main sensing forms: manipulating/constructing heterojunctions, catalytic reaction, charge transfer, charge carrier transport, molecular binding/sieving, and their combinations. Promises and challenges of the advances of each form are presented and discussed. Critical thinking and ideas regarding the orientation of the development of hybrid material-based gas sensor in the future are discussed.