4D-printed self-recovered triboelectric nanogenerator for energy harvesting and self-powered sensor. (June 2021)

• Record Type: Journal Article
• Authors: Huang, Long-Biao; Han, Jian-Cheng; Chen, Shaojun; Sun, Zhenhua; Dai, Xingyi; Ge, Penghui; Zhao, Cheng-Han; Zheng, Qiu-Qun; Sun, Fu-Chun; Hao, Jianhua
• Is Part Of: Nano energy. Volume 84(2021)
• Publication Date: 2021-06
• Subjects: Triboelectric nanogenerators -- 4D printing technology -- Shape memory polymer -- Self-powered sensor; Nanoscience -- Periodicals; Nanotechnology -- Periodicals; Nanostructured materials -- Periodicals; Power resources -- Technological innovations -- Periodicals; Nanoscience; Nanostructured materials; Nanotechnology; Power resources -- Technological innovations; Periodicals; 621.042
• DOI: 10.1016/j.nanoen.2021.105873
• Languages: English
• ISSNs: 2211-2855

Abstract

Abstract: Based on the triboelectrification and electrostatic induction, triboelectric nanogenerators (TENGs) have already expanded many applications ranging from ambient mechanical energy harvesting to self-powered sensors. Diverse advanced techniques have been utilized to fabricate various devices to fulfill those applications. To further develop the wide utilization of TENGs, we introduce 4D printing technology to fabricate the transparent self-recovered TENGs, which not only provide excellent self-recoverability of device performance and improve the robustness of device structure, but also open a path to fabricate complicated structure through computer design with no need of any molds. The printed devices have the capabilities of harvesting mechanical energy with maximum output power density of 56 mW/m 2 as well as detecting the bending angles of human joints as self-powered sensor. The self-recoverability is originated from shape memory polymer (SMP) under thermal treatment. Therefore, the self-recovered TENGs based on 4D printing technology may offer great potential in energy harvesting and self-powered sensors for human-robot cooperation in sensing and control of robot in need of sophisticated and precise structures. Graphical Abstract: To further develop the wide utilization of Triboelectric Nanogenerators (TENGs), we introduce 4D printing technology and fabricate the transparent self-recovered TENGs, which not only provide excellent self-recoverability of device performance and improve the robustness of device structure, but also open a path to fabricate complicated structure through computer design with no need of any molds. The self-recovered TENGs based on 4D printing technology may offer great potential in energy harvesting and self-powered sensors for human-robot cooperation in sensing and control of robot in need of sophisticated and precise structures. ga1 Highlights: A novel 4D printed TENG was firstly achieved by combination 3D printing technique and shape memory materials. The 4D-printed microstructure and whole TENG device has the excellent self-recover property in short time. Different working modes of TENGs could be easily fabricated through computer design. The 4D- printed TENG could be utilized to harvest mechanical energy and detect bending angles of human joints as a self-powered sensor.