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Nano Research

Article Title

Tribotronic transistor sensor for enhanced hydrogen detection

Authors

Yaokun Pang, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 100083, China National Center for Nanoscience and Technology (NCNST), Beijing 100190, China University of Chinese Academy of Sciences, Beijing 100049, China
Libo Chen, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 100083, China National Center for Nanoscience and Technology (NCNST), Beijing 100190, China University of Chinese Academy of Sciences, Beijing 100049, China
Guofeng Hu, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 100083, China National Center for Nanoscience and Technology (NCNST), Beijing 100190, China University of Chinese Academy of Sciences, Beijing 100049, China
Jianjun Luo, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 100083, China National Center for Nanoscience and Technology (NCNST), Beijing 100190, China University of Chinese Academy of Sciences, Beijing 100049, China
Zhiwei Yang, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 100083, China National Center for Nanoscience and Technology (NCNST), Beijing 100190, China University of Chinese Academy of Sciences, Beijing 100049, China
Chi Zhang, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 100083, China National Center for Nanoscience and Technology (NCNST), Beijing 100190, China
Zhong Lin Wang, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 100083, China National Center for Nanoscience and Technology (NCNST), Beijing 100190, China School of Material Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, USA

Keywords

tribotronics, triboelectric nanogenerator, ZnO, hydrogen detection, sensitivity

Abstract

ABSTRACT Hydrogen detection with a high sensitivity is necessary for preventing potential explosions and fire. In this study, a novel ZnO tribotronic transistor is developed by coupling a ZnO field effect transistor (FET) and triboelectric nanogenerator in free-standing mode and is used as a sensor for hydrogen detection at room temperature. Tribotronic modulated performances of the hydrogen sensor are demonstrated by investigating its output characteristics at different sliding distances and hydrogen concentrations. By applying an external mechanical force to the device for sliding electrification, the detection sensitivity of the ZnO tribotronic transistor sensor is improved, with a significant enhancement achieved in output current by 62 times at 500 ppm hydrogen and 1 V bias voltage. This study demonstrates an extension of the applications of emerging tribotronics for gas detection and a prospective approach to improve the performance of the hydrogen sensor via human-interfacing.

Graphical Abstract

Publisher

Tsinghua University Press

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