Application of Electrostatic Inkjet Phenomena to Micro/Nano-Film Formation

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Micro spray mode of electrostatic inkjet has been examined experimentally for the application of precision film coating such as photoreceptors and photovoltaic cells. According to the increment of applied voltage, jetting mode change was observed for all examined liquids that were the change from dripping mode to stable cone-jet mode. Although the variation of jetting mode was qualitatively the same as that of a single nozzle, for multi-nozzle the higher voltage was required to obtain the stable jetting mode because the electric field at the tips of multi-nozzle were lower than that of a single nozzle. From coating experiments it was demonstrated that multi-nozzle could jet viscous solution to acquire thick and flat film. To apply it to the nano-film coating, considering depositing and drying conditions is indispensable in addition to the jetting process. Much finer droplets could enlarge the parameter-space for quality coating.

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  • 日本画像学会誌

    日本画像学会誌 51 (5), 515-523, 2012

    一般社団法人 日本画像学会

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