Presentation Information

1:45 PM - 2:00 PM JST(4:45 AM - 5:00 AM UTC)

[9p-E215-2]Contact angle measurements on transparent EWOD devices using CVD graphene electrodes

〇(M1)Shunya Matsumoto¹, Shiguma Aoki¹, Masashi Takagi², Kazuyuki Shiratori², Takeshi Watanabe¹, Shinji Koh¹ (1.Aoyama Gakuin Univ., 2.Nissan Motor Co.)

Keywords:

Graphene,Electrowetting,Transparent Conductive Films

In recent years, EWOD (Electrowetting on Dielectric) has attracted attention for liquid lens applications. Conventional ITO transparent electrodes have limited flexibility, which restricts their application in flexible devices. In this study, a transparent EWOD device using graphene electrodes was fabricated. In addition, a high-permittivity material, PVDF-TrFE-CFE, was introduced, and the contact angle variation was evaluated through comparison with a CYTOP single-layer structure. The results demonstrated an increased contact angle variation and reduced driving voltage, indicating the feasibility of the proposed structure for transparent EWOD devices.

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