Title： | A Wrinkled PEDOT:PSS Film Based Stretchable and Transparent Triboelectric Nanogenerator for Wearable Energy Harvesters and Active Motion Sensors |
Authors： | Zhen Wen,* Yanqin Yang, Na Sun, Gengfei Li, Yina Liu, Chen Chen, Jihong Shi, Lingjie Xie, Hongxue Jiang, Dequan Bao, Qiqi Zhuo, and Xuhui Sun* |
Institutions： | 1 Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, and Joint International Research Laboratory of Carbon-Based Functional Materials and Devices, Soochow University 2Department of Mathematical Sciences, Xi’an Jiaotong-Liverpool University, Suzhou 215123, China 3College of Material Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212003, China |
Abstract： | 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. |
IF： | 13.325 |
Link： | https://onlinelibrary.wiley.com/doi/abs/10.1002/adfm.201803684 |
Editor: Danting Xiang