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説明:

Organic semiconductor (OSC) single crystals feature flexibility, solution processability, and high-mobility coherent carrier transport, which are advantageous for printed flexible electronic applications. A mechanical strain sensor is a target device whose high sensitivity and wide measurement range have been demonstrated when OSC single crystals were employed as the active channel. However, there have been limited reports on scalable fabrication of devices and reliable measurements, which limits the use of strain sensors in a wide range of applications. In this study, we present a comprehensive approach to address these issues through advanced device processing, design, and measurements. Our resistive strain sensors showed a small drift owing to the stable and effective p-type chemical doping of the OSC single crystals. A Wheatstone bridge circuit and compact lock-in amplifier were designed to accurately measure resistance changes at low noise levels. The experimental results demonstrated a substantial reduction in noise and achieved high-precision measurements with precision of ±1.8 ppm.

権利情報:

• Creative Commons BY Attribution 4.0 International
  

キーワード: organic semiconductor, chemical doping, strain sensor

刊行年月日: 2025-12-31

出版者: Informa UK Limited

掲載誌:

• Science and Technology of Advanced Materials (ISSN: 14686996) vol. 26 issue. 1

研究助成金:

• Core Research for Evolutional Science and Technology JPMJCR21O3
• Japan Society for the Promotion of Science JP22H04959

原稿種別: 出版者版 (Version of record)

MDR DOI:

公開URL: https://doi.org/10.1080/14686996.2025.2451020

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更新時刻: 2025-05-07 12:30:17 +0900

MDRでの公開時刻: 2025-05-07 12:19:24 +0900