JRM Vol.34 No.2 pp. 257-259
doi: 10.20965/jrm.2022.p0257


Environmental Response Sensors Produced Using Bilayer-Type Organic Semiconductors

Shunto Arai

The University of Tokyo
7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan

September 5, 2021
September 14, 2021
April 20, 2022
chemical sensor, molecular bilayer, organic semiconductor, organic transistor, printed electronics

In this study, we developed environmental gas sensors based on bilayer-type organic semiconductors. The number of stacked molecular bilayers was controlled through a solution-based approach. In particular, single molecular bilayers (SMBs) were produced through a geometrical frustration method that can effectively suppress the multiple stacking of bilayers. The layer number-controlled films were utilized to form thin-film transistors (TFTs) to detect the moisture in the air. We revealed that the sensitivity was enhanced in the SMB-based TFTs compared with the TFTs with thicker active layers. These findings are expected to facilitate a new route for producing flexible and lightweight chemical sensors.

Ultra-thin semiconductors enhance the sensitivity of sensors

Ultra-thin semiconductors enhance the sensitivity of sensors

Cite this article as:
S. Arai, “Environmental Response Sensors Produced Using Bilayer-Type Organic Semiconductors,” J. Robot. Mechatron., Vol.34 No.2, pp. 257-259, 2022.
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Last updated on Sep. 21, 2023