Organic Tribovoltaic Nanogenerator with Electrically and Mechanically Tuned Flexible Semiconductor Textile

作     者：Liu, Guoxu Luan, Ruifei Qi, Youchao Gong, Likun Cao, Jie Wang, Zhihao Liu, Feng Zeng, Jianhua Huang, Xinlong Qin, Yuhan Dong, Sicheng Feng, Yuan Huang, Longbiao Zhang, Chi 

作者机构：Key Laboratory of Optoelectronic Devices and Systems Ministry of Education and Guangdong Province College of Physics and Optoelectronic Engineering Shenzhen University Shenzhen518060 China CAS Center for Excellence in Nanoscience Beijing Key Laboratory of Micro-nano Energy and Sensor Beijing Institute of Nanoenergy and Nanosystems Chinese Academy of Sciences Beijing101400 China School of Nanoscience and Technology University of Chinese Academy of Sciences Beijing100049 China Center on Nanoenergy Research School of Physical Science and Technology Guangxi University China Institute of Intelligent Flexible Mechatronics Jiangsu University China 

出 版 物：《SSRN》 

年 卷 期：2022年

核心收录：

主　　题：Nanogenerators 

摘      要：Obtaining a wear-resistant, high-output, flexible direct current (DC) friction energy harvester is quite important for implementing self-powered portable electronic devices and Internet of Things (IoT). In this work, a direct current flexible textile organic tribovoltaic nanogenerator (FT-OTG) is reported, which is consisted of blended film of 11.11% poly(3,4-ethylenedioxythiophene): poly(styrene sulfonate) (PEDOT: PSS) and 88.89% polyvinyl alcohol (PVA), a hydrophilic conductive ink, a hydrophobic conductive textile and Al slider. The working mechanism of OTG is that after absorbing friction energy, abound electron-hole pairs are excited at the metal-semiconductor interface. These carriers move directionally under the joint drive of electrostatic field and the built-in electric field to form a current. After PVA doping, the output performance of DC-OTG, including open-circuit voltage and short-circuit current, is improved 5.6 times and 4.2 times, respectively. Furthermore, the mechanical properties of blended film, such as wear resistance, elongation and tensile strength, are improved, among which elongation at break is increased by 8 times and tensile strength increased by 3.2 times. By simplify series connecting, 3 FT-OTGs can constantly power portable electronics, like electronic watch, thermometer and calculator, respectively. This work provides an effective way for simultaneously enhanced output performance and mechanical properties of FT-OTG, which is expected to be a robust way for harvesting friction energy for self-powered electronics device and IoT sensors. © 2022, The Authors. All rights reserved.