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- W2912604487 abstract "Abstract In this research, we report a new application of alternating-current electroluminescent (AC-EL) devices for carbon dioxide (CO2) detection at room temperature. The EL structure was designed for gas-sensing applications by replacing a dielectric layer with a graphene gas-sensing layer. The graphene-based EL gas sensor was fabricated by screen-printing of a ZnS:Cu,Cl phosphor layer and drop-coating of graphene synthesized by chemical vapor deposition (CVD) process. Optical characterizations confirmed that the graphene-based EL gas sensor showed similar optical properties to a typical AC-EL display device. From gas-sensing results, the AC-EL gas sensor exhibited high response to CO2 in concentration range of 100–1000 ppm at room temperature and high selectivity against NH3, C2H5OH and C7H8. Furthermore, the EL gas sensors offer good repeatability, reproducibility and measurement accuracy. A sensing mechanism of AC-EL gas sensor was explained based on the resistance change of graphene sensing layer via a direct charge transfer process. These results could pave the way to develop a new type of gas sensor based on an EL principle." @default.
- W2912604487 created "2019-02-21" @default.
- W2912604487 creator A5028007272 @default.
- W2912604487 creator A5072265744 @default.
- W2912604487 date "2019-06-01" @default.
- W2912604487 modified "2023-10-17" @default.
- W2912604487 title "A novel graphene-based electroluminescent gas sensor for carbon dioxide detection" @default.
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- W2912604487 doi "https://doi.org/10.1016/j.apsusc.2019.02.100" @default.
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