[18a-Z13-1~11] 6.2 Carbon-based thin films

△ [18a-Z13-10] Proposal of a Mechanism for Signal Propagation of Seawater Wireless Communication utilizing Diamond Electrolyte Solution Gate FET

〇Hirotaka Sato¹, Teruaki Takarada¹, Kaito Tadenuma¹, Chang Yu Hao¹, Shuto Kawaguchi¹, Kawarada Hiroshi^1,2 (1.Waseda Univ., 2.ZAIKEN)

Keywords:diamond, FET, Seawater wireless communication

We proposed seawater wireless communication utilizing diamond electrolyte solution gate FETs(SGFETs). In this research, we evaluate the output characteristics of the SGFET by varying the solution cross-sectional area and distance between the gate electrode and the channel. In a system with a small cross-sectional area of the solution, the output increased as the cross-sectional area is expanded, but in a system with a large cross-sectional area of the solution, the cross-sectional area dependence on the output was small. In addition, since there is frequency dependence on the propagation distance, we propose a signal propagation model using compressional waves of ions.