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Cited 22 time in webofscience Cited 28 time in scopus
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Rational Design of Semiconductor-Based Chemiresistors and their Libraries for Next-Generation Artificial Olfaction

Authors
Jeong, Seong-YongKim, Jun-SikLee, Jong-Heun
Issue Date
12월-2020
Publisher
WILEY-V C H VERLAG GMBH
Keywords
artificial olfaction; chemiresistors; electronic noses; gas sensors; oxide semiconductors
Citation
ADVANCED MATERIALS, v.32, no.51
Indexed
SCIE
SCOPUS
Journal Title
ADVANCED MATERIALS
Volume
32
Number
51
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/51239
DOI
10.1002/adma.202002075
ISSN
0935-9648
Abstract
Artificial olfaction based on gas sensor arrays aims to substitute for, support, and surpass human olfaction. Like mammalian olfaction, a larger number of sensors and more signal processing are crucial for strengthening artificial olfaction. Due to rapid progress in computing capabilities and machine-learning algorithms, on-demand high-performance artificial olfaction that can eclipse human olfaction becomes inevitable once diverse and versatile gas sensing materials are provided. Here, rational strategies to design a myriad of different semiconductor-based chemiresistors and to grow gas sensing libraries enough to identify a wide range of odors and gases are reviewed, discussed, and suggested. Key approaches include the use of p-type oxide semiconductors, multinary perovskite and spinel oxides, carbon-based materials, metal chalcogenides, their heterostructures, as well as heterocomposites as distinctive sensing materials, the utilization of bilayer sensor design, the design of robust sensing materials, and the high-throughput screening of sensing materials. In addition, the state-of-the-art and key issues in the implementation of electronic noses are discussed. Finally, a perspective on chemiresistive sensing materials for next-generation artificial olfaction is provided.
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