Kim, Byeong-Guk Lim, Dong-Gun Park, Jae-Hwan Choi, Young-Jin Park, Jae-Gwan 2024-01-20T17:31:25Z 2024-01-20T17:31:25Z 2021-09-02 2011-03-01 0169-4332 https://pubs.kist.re.kr/handle/201004/130542 A simple and efficient way of making highly sensitive SnO2 nanowire-based gas sensors without an individual lithography process was studied. The SnO2 nanowires network was floated upon the Si substrate by separating the Au catalyst layer from the substrate. As the electric current is transported along the networks of the nanowires, not along the surface layer on the substrate, the gas sensitivities could be maximized in this networked and floated structures. The sensitivity was 5-30 when the NO2 concentration was 1-10 ppm. The response time was ca. 20-60 s. (C) 2011 Elsevier B. V. All rights reserved. English ELSEVIER CONDUCTION MODEL OXIDE SENSITIVITY SENSORS In-situ bridging of SnO2 nanowires between the electrodes and their NO2 gas sensing characteristics Article 10.1016/j.apsusc.2010.12.137 1 APPLIED SURFACE SCIENCE, v.257, no.10, pp.4715 - 4718 APPLIED SURFACE SCIENCE 257 10 4715 4718 scie scopus 000286808300032 2-s2.0-79551529060 Chemistry, Physical Materials Science, Coatings & Films Physics, Applied Physics, Condensed Matter Chemistry Materials Science Physics Article CONDUCTION MODEL OXIDE SENSITIVITY SENSORS Nanowires SnO2 Gas sensor NO2