Gate-controlled gas sensor utilizing 1D–2D hybrid nanowires network

Autor: Juyeon Seo, Seung Hyun Nam, Moonsang Lee, Jin-Young Kim, Seung Gyu Kim, Changkyoo Park, Dong-Woo Seo, Young Lae Kim, Sang Sub Kim, Un Jeong Kim, Myung Gwan Hahm
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: iScience, Vol 25, Iss 1, Pp 103660- (2022)
Druh dokumentu: article
ISSN: 2589-0042
DOI: 10.1016/j.isci.2021.103660
Popis: Summary: Novel gas sensors that work at room temperature are attracting attention due to their low energy consumption and stability in the presence of toxic gases. However, the development of sensing characteristics at room temperature is still a primary challenge. Diverse reaction pathways and low adsorption energy for gas molecules are required to fabricate a gas sensor that works at room temperature with high sensitivity, selectivity, and efficiency. Therefore, we enhanced the gas sensing performance at room temperature by constructing hybridized nanostructure of 1D–2D hybrid of SnSe2 layers and SnO2 nanowire networks and by controlling the back-gate bias (Vg = 1.5 V). The response time was dramatically reduced by lowering the energy barrier for the adsorption on the reactive sites, which are controlled by the back gate. Consequently, we believe that this research could contribute to improving the performance of gas sensors that work at room temperature.
Databáze: Directory of Open Access Journals