Journal
NANO-MICRO LETTERS
Volume 12, Issue 1, Pages -Publisher
SHANGHAI JIAO TONG UNIV PRESS
DOI: 10.1007/s40820-020-0407-5
Keywords
Gas sensor; Hybrid; Chemi-resistor; Functional nanomaterials
Funding
- Phase-II Grand Challenges Explorations award from the Bill, Melinda Gates Foundation [OPP1109493]
- Japan Society of the Promotion of Science (JSPS, Postdoctoral Fellowships for Research in Japan (Standard)) [P18334]
- National Natural Science Foundation of China [21801243]
- Natural Science Foundation of Shaanxi province [2018JM6045, 2018JM1046]
- Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration [SHUES2019A02]
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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.
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