Laser-induced graphene (LIG)-based pressure sensor and triboelectric nanogenerator towards high-performance self-powered measurement-control combined system

• Published in: Nano energy 2022-06, Vol.96, p.107099, Article 107099
• Main Authors: Xia, Sheng-Yuan, Long, Yunfeng, Huang, Zhengyong, Zi, Yunlong, Tao, Lu-Qi, Li, Chang-Heng, Sun, Hao, Li, Jian
• Format: Article
• Language: English
• Subjects: Cloth-based sensor; Laser-induced graphene (LIG); Measurement-control combined system; Piezoresistive pressure sensor; Reduced graphene oxide (rGO); Triboelectric nanogenerator (TENG)
• ISSN: 2211-2855
• DOI: 10.1016/j.nanoen.2022.107099

Pressure sensors have gained widespread attention in recent years, playing an important role in wearable devices, smart skin and human-computer interaction. Nevertheless, the high performance of pressure sensors usually requires a complex and high-cost preparation process. Worse yet, it has been established that pressure sensors mainly powered by external batteries, which cannot meet the needs of ultra-long standby and portability. Herein, we present a reduced graphene oxide (rGO)-cloth based pressure sensor with laser-induced graphene (LIG) prepared by a simple and low-cost preparation process. LIG not only contribute to the sensitivity of pressure sensors (from 20.6 kPa−1 to 30.3 kPa−1), but also improve the transfer charge density of triboelectric nanogenerator (TENG) (from 160 µC/m2 to 270 µC/m2). Given these advantages, a high-performance self-powered measurement-control combined system consisting of the LIG-based pressure sensors and TENG is constructed, which bears huge potential to support the development of wearable devices, smart skin and human-computer interaction. [Display omitted] •The preparation method of high-performance pressure sensors is simple, low-cost, environmentally-friendly.•LIG not only contribute to the sensitivity of pressure sensors, but also improve the transfer charge density of TENG.•This study improves the performance of two devices required for our system in a simple and low-cost way.•A self-powered measurement-control combined system has been constructed to detect both detect dynamic and static forces.