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 2024-01-19T09:01:06Z 2024-01-19T09:01:06Z 2023-05-11 2023-09 https://pubs.kist.re.kr/handle/201004/113371 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. English WILEY Facile Formation of Metal-Oxide Nanocraters by Laser Irradiation for Highly Enhanced Detection of Volatile Organic Compounds Article 10.1002/sstr.202300068 1 Small Structures, v.4, no.9 Small Structures 4 9 Y scie 000975883100001 Chemistry, Physical Nanoscience & Nanotechnology Materials Science, Multidisciplinary Chemistry Science & Technology - Other Topics Materials Science Article GAS SENSORS NANOPARTICLES NANORODS ARRAYS NANOSTRUCTURE METHANETHIOL GROWTH TIO2 NO2 gas sensors laser irradiation nanostructures tin oxide volatile organic compounds