Nano-Micro Letters

Gas Sensors Based on Chemi-Resistive Hybrid Functional Nanomaterials

Yingying Jian1, #, Wenwen Hu2, #, Zhenhuan Zhao1, Pengfei Cheng2, Hossam Haick1, 3, *, Mingshui Yao4, *, Weiwei Wu1, *

Abstract
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Nano-Micro Lett. (2020) 12: 71

First Online: 11 March 2020 (Article)

DOI:10.1007/s40820-020-0407-5

*Corresponding author. E-mail: hhossam@technion.ac.il (Hossam Haick); mingshuiyao@gmail.com (Mingshui Yao); wwwu@xidian.edu.cn (Weiwei Wu)

 

Abstract

 


Toc

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 materials-based gas sensor in the future are discussed.


 

Keywords

Sensor; Hybrid; Nanomaterial; Chemi-resistor; Functional

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