title: Ultralight Cut-Paper-Based Self-Charging Power Unit for Self-Powered Portable Electronic and Medical Systems.
abstract: The development of lightweight, superportable, and sustainable power sources has become an urgent need for most modern personal electronics. Here, we report a cut-paper-based self-charging power unit (PC-SCPU) that is capable of simultaneously harvesting and storing energy from body movement by combining a paper-based triboelectric nanogenerator (TENG) and a supercapacitor (SC), respectively. Utilizing the paper as the substrate with an assembled cut-paper architecture, an ultralight rhombic-shaped TENG is achieved with highly specific mass/volume charge output (82 nC g-1/75 nC cm-3) compared with the traditional acrylic-based TENG (5.7 nC g-1/5.8 nC cm-3), which can effectively charge the SC (∼1 mF) to ∼1 V in minutes. This wallet-contained PC-SCPU is then demonstrated as a sustainable power source for driving wearable and portable electronic devices such as a wireless remote control, electric watch, or temperature sensor. This study presents a potential paper-based portable SCPU for practical and medical applications.
authors.affiliation: Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, National Center for Nanoscience and Technology (NCNST) , Beijing, 100083, People's Republic of China.|School of Material Science and Engineering, Georgia Institute of Technology , Atlanta, Georgia 30332-0245, United States.|Department of Applied Physics, Chongqing University , Chongqing, 400044, People's Republic of China.
authors.forename: Hengyu
authors.initials: H
authors.lastname: Guo
authors.affiliation: School of Material Science and Engineering, Georgia Institute of Technology , Atlanta, Georgia 30332-0245, United States.|Department of Chemical Engineering, National Taiwan University of Science and Technology , Taipei 10607, Taiwan.
authors.forename: Min-Hsin
authors.identifier: 0000-0002-6150-4750
authors.initials: MH
authors.lastname: Yeh
authors.affiliation: School of Material Science and Engineering, Georgia Institute of Technology , Atlanta, Georgia 30332-0245, United States.
authors.forename: Yunlong
authors.identifier: 0000-0002-5133-4057
authors.initials: Y
authors.lastname: Zi
authors.affiliation: School of Material Science and Engineering, Georgia Institute of Technology , Atlanta, Georgia 30332-0245, United States.
authors.forename: Zhen
authors.identifier: 0000-0001-9780-6876
authors.initials: Z
authors.lastname: Wen
authors.affiliation: Department of Applied Physics, Chongqing University , Chongqing, 400044, People's Republic of China.
authors.forename: Jie
authors.initials: J
authors.lastname: Chen
authors.affiliation: Department of Applied Physics, Chongqing University , Chongqing, 400044, People's Republic of China.
authors.forename: Guanlin
authors.initials: G
authors.lastname: Liu
authors.affiliation: Department of Applied Physics, Chongqing University , Chongqing, 400044, People's Republic of China.
authors.forename: Chenguo
authors.initials: C
authors.lastname: Hu
authors.affiliation: Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, National Center for Nanoscience and Technology (NCNST) , Beijing, 100083, People's Republic of China.|School of Material Science and Engineering, Georgia Institute of Technology , Atlanta, Georgia 30332-0245, United States.
authors.forename: Zhong Lin
authors.identifier: 0000-0002-5530-0380
authors.initials: ZL
authors.lastname: Wang
mesh_terms: D001674:Bioelectric Energy Sources / Q000191:economics*; D011211:Electric Power Supplies; D004560:Electricity; D004581:Electronics / Q000295:instrumentation*; D004867:Equipment Design; D036103:Nanotechnology / Q000295:instrumentation*
keywords: cut paper; self-charging power unit; supercapacitor; superportable; triboelectric nanogenerator