[18a-C202-1~12] 17.2 Graphene

△ [18a-C202-12] Simultaneous Detection of Charge and Mass using Graphene Surface Acoustic Wave Sensors

〇Satoshi Okuda^1,2, Yasushi Kanai¹, Takao Ono¹, Masaaki Shimatani², Shinpei Ogawa², Takashi Ikuta^1,3, Koichi Inoue¹, Kenzo Maehashi^1,3, Kazuhiko Matsumoto¹ (1.ISIR,Osaka Univ., 2.Mitsubishi Electric Corp., 3.TUAT)

Keywords:graphene, sutrface acoustic wave, biosensor

We have developed a graphene surface acoustic wave (GSAW) sensor, which was combined a graphene field-effect transistor (GFET) and a surface acoustic wave (SAW) sensor. We have found that the GSAW sensor indicates the unique electrical characteristics in solution by using acoustoelectric current, which is different from the electrical characteristics of a GFET sensor. Moreover, we have demonstrated that the GSAW sensor is a transducer capable of the simultaneous detection of charge and mass in solution. Therefore, the realization of multifunctional graphene based biosensors is expected in the future.