Facile Formation of Metal–Oxide Nanocraters by Laser Irradiation for Highly Enhanced Detection of Volatile Organic Compounds

Although various fabrication methods for metal–oxide nanostructures have been well developed for enlarged surface area, numerous efforts to further enhance the effective surface area for their chemical sensor applications are still being studied. Herein, a high‐power laser is irradiated on the exist...

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Bibliographic Details
Published inSmall structures Vol. 4; no. 9
Main Authors Suh, Jun Min, Song, Young Geun, Seo, Jung Hwan, Noh, Myoung Sub, Kang, Min Gyu, Sohn, Woonbae, Lee, Jinho, Lee, Kwangjae, Cho, Donghwi, Jeon, Seokwoo, Kang, Chong-Yun, Shim, Young-Seok, Jang, Ho Won
Format Journal Article
LanguageEnglish
Published Weinheim John Wiley & Sons, Inc 01.09.2023
Wiley-VCH
Subjects
Chemical reactions
Chemical sensors
gas sensors
Heat
Irradiation
laser irradiation
Lasers
Morphology
Nanostructure
nanostructures
Noble metals
Scanning electron microscopy
Simulation
Surface area
Thin films
tin oxide
VOCs
Volatile organic compounds
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Summary:Although various fabrication methods for metal–oxide nanostructures have been well developed for enlarged surface area, numerous efforts to further enhance the effective surface area for their chemical sensor applications are still being studied. Herein, a high‐power laser is irradiated on the existing metal–oxide nanostructures to expose the hidden inner surface of the nanostructures for full participation in the surface gas‐sensing reactions, resulting in extraordinary gas‐sensing performance. In addition, noble metal catalyst decoration at both the inner and outer surfaces of the nanostructures records extremely high gas response and selectivity to volatile organic compounds. The numerical simulation and experimental verification of the effects of high‐power laser irradiation for morphological evolution of the metal–oxide nanostructures can provide a new perspective toward the time‐efficient development of nanostructure‐based electronic devices.
ISSN:2688-4062
2688-4062
DOI:10.1002/sstr.202300068