[18a-PA7-1~11] 8.5 Plasma phenomena, emerging area of plasmas and their new applications

[18a-PA7-7] Diagnostics of gas-liquid interfacial plasma using optical emission spectroscopy

〇Ikumi Oosawa¹, Saida Takahiro¹, Ohta Takayuki¹ (1.Meijo Univ.)

Keywords:gas-liquid interfacial plasma, optical emission spectroscopy

In this study, the diagnostics of gas-liquid interfacial plasma was performed using optical emission spectroscopy in order to clarify the synthesis mechanism of nanoparticles. The gas-liquid interface plasma was generated by applying an AC voltage between the electrodes placed in the gas phase and the liquid phase. The argon and hydrogen mixed gas was used. From the results on the applied voltage dependence on emission intensity, it is suggested that the production of H atoms by electron impact dissociation from H₂O or H₂ was promoted as the electron density and the electron temperature increased.