Abstract
In today’s society, hydrogen energy is emerging as a future eco-friendly energy source to mitigate environmental pollution and resource depletion problems. Particularly, eco-friendly hydrogen electric vehicles and hydrogen fuel cells have been developed rapidly. As there is a risk of explosion from leakage of hydrogen gas during usage, research on sensors that can detect hydrogen gas is imperative. In this paper, a basic research was conducted on the application of hydrogen sensor adopting SnO2 thin film with excellent hydrogen detection characteristics. The SnO2 thin film was deposited on a hydrogen sensor to study optical properties. The SnO2 thin film was deposited with 50 nm thickness using Electron Beam Evaporation and analyzed by applying SEM, EDS, AFM, and spectrum methods. To study hydrogen detection characteristics of the sensor, spectrum characteristics were analyzed in 4% hydrogen and 96% nitrogen. As a result, spectral characteristic was changed from −34.6 dB wavelength before hydrogen injection to –34.2 dB wavelength after hydrogen injection. This confirms that the SnO2 thin film can be applied to a hydrogen sensor for hydrogen gas detection.
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This paper has been revised and supplemented with the first author's master's thesis.
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Kim, HB., Cheon, MW. Characteristics Analysis of Hydrogen Sensors Using SnO2 Thin Film Fabricated by Using Electron Beam Evaporation. Trans. Electr. Electron. Mater. 23, 313–317 (2022). https://doi.org/10.1007/s42341-022-00393-w
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DOI: https://doi.org/10.1007/s42341-022-00393-w