[17p-P11-1~37] 12.7 Biomedical Engineering and Biochips

[17p-P11-31] Field Effect Transistors using Direct Grown Graphene and Its Specific Detection of K⁺ Ions

〇YAN TAN¹, Katsuaki Tamaki², Yuki Tokunaga³, Atsushi Kubono^1,2,3, Ryosuke Matsubara^1,2,3, Atsushi Nakamura^1,2,3 (1.Shizuoka Univ., 2.Grad. Shizuoka Univ., 3.Eng. Shizuoka Univ.)

Keywords:graphene, FET, Direct Growth

Graphene field effect transistors (FET) can directly detect a specimen on the channel of FET, and its high sensitivity is expected. We have fabricated a pH sensor with FET using directly grown graphene and confirmed that can be sensed in pH range (4.5 ~ 8.5). In this study, we demonstrate the detection of ion species by direct growth graphene FET.