A Wrinkled PEDOT:PSS Film Based Stretchable and Transparent Triboelectric Nanogenerator for Wearable Energy Harvesters and Active Motion Sensors

By Zhen Wen, Yanqin Yang, Na Sun, Gengfei Li, Yina Liu, Jihong Shi, Lingjie Xie, Hongxue Jiang, Dequan Bao, Qiqi Zhuo and 1 more. Advanced Functional Materials, 2018

341 citations recorded by the source corpus.

The functionalized conductive polymer is a promising choice for flexible triboelectric nanogenerators (TENGs) for harvesting human motion energy still poses challenges. In this work, a transparent and stretchable wrinkled poly(3,4‐ethylenedioxythiophene):poly(4‐styrenesulfonate) (PEDOT:PSS) electrode based TENG (WP‐TENG) is fabricated. The optimum conductivity and transparency of PEDOT:PSS electrode can reach 0.14 kΩ □−1 and 90%, respectively, with maximum strain of ≈100%. Operating in single‐electrode mode at 2.5 Hz, the WP‐TENG with an area of 6 × 3 cm2 produces an open‐circuit voltage of 180 V, short‐circuit current of 22.6 µA, and average power density of 4.06 mW m−2. It can be worn on the wrist to harvest hand tapping energy and charge the capacitor to 2 V in ≈3.5 min, and then drive an electronic watch. Furthermore, the WP‐TENG as the human motion monitoring sensor could inspect the bending angle of the elbow and joint by analyzing the peak value of voltage and monitor the motion frequency by counting the peak number. The triboelectric mechanism also enables the WP‐TENG to realize high‐performance active tactile sensing. The assembled 3 pixel × 3 pixel tactile sensor array is fabricated for mapping the touch location or recording the shape of object contacted with the sensor array.

Subfields: Biomedical Engineering, Cognitive Neuroscience, Polymers and Plastics

View Paper: https://www.semanticscholar.org/paper/bff6cf92179cf83a4251651570a06036246eea29

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Citations in the corpus

Flexible Electronics: Status, Challenges and Opportunities (2020, background): “, 2018); and finally, charging processes during friction, for triboelectric harvesters (Fan et al., 2012; Wen et al., 2018).”
Progress in TENG technology—A journey from energy harvesting to nanoenergy and nanosystem (2020, background): “In this section, several interesting functionalities of TENG will be introduced, including shape memory capability, self-healing capability, shape adaptive capability, and stretchability.(139,233,321-341) In 2015, Lee et al proposed the first shape memory TENG, where the shape memory polymer, PU ser”