Mizuki Odaira, Yukihiro Tatsumi, Kensuke Murakami, Ken Ogasahara, Satoshi Shimizu, Yong-Joon Choi, Kazuhiro Takahashi, T. Noda, K. Sawada
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Fabrication of Multimodal Image Sensor Capable of Simultaneous Measurement of Pressure and pH
In this study, we propose a pressure-ion image sensor that can simultaneously measure pressure and ion distribution with a patterned piezoelectric film on a pH image sensor. By patterning using photolithography and lift-off, a structure with alternating pressure and pH sensing areas was achieved, and the fabricated pressure-ion image sensor successfully visualized pH and pressure distribution simultaneously.