title: Flow-less and shape-conformable CNT sheet nanogenerator for self-powered motion sensor.
abstract: A carbon nanotube (CNT) sheet nanogenerator that does not require any liquid or gas flow for power generation is developed on the basis of Coulombic interactions, making the device attractive as a building block for self-powered sensors. The working principle of the CNT nanogenerator is probed in terms of sweeping speed, distance between charged object and nanotube sheet, surface charge, and number of layers of nanotube sheet. The nature of the CNT sheet and its formation process is such that simply winding the CNT sheet stripe n times around a substrate leads to increasing the power n times. For a practical demonstration of the CNT nanogenerator, a self-powered sensor array screen is developed that can read finger movements, just as with a finger command on a smartphone screen.
authors.affiliation: School of Mechanical and Aerospace Engineering, Seoul National University, Seoul 08826, South Korea. yongkim@snu.ac.kr.
authors.forename: Hyelynn
authors.initials: H
authors.lastname: Song
authors.affiliation: School of Mechanical and Aerospace Engineering, Seoul National University, Seoul 08826, South Korea. yongkim@snu.ac.kr.
authors.forename: Taewoo
authors.initials: T
authors.lastname: Kim
authors.affiliation: School of Mechanical and Aerospace Engineering, Seoul National University, Seoul 08826, South Korea. yongkim@snu.ac.kr.
authors.forename: Hyeongwook
authors.initials: H
authors.lastname: Im
authors.affiliation: LINTEC OF AMERICA, INC., 990 N. Bowser Rd, Suite 840, Richardson, TX 75081, USA.
authors.forename: Raquel
authors.initials: R
authors.lastname: Ovalle-Robles
authors.affiliation: Department of Mechanical Engineering, INHA University, Incheon 22212, South Korea.
authors.forename: Tae June
authors.initials: TJ
authors.lastname: Kang
authors.affiliation: School of Mechanical and Aerospace Engineering, Seoul National University, Seoul 08826, South Korea. yongkim@snu.ac.kr.
authors.forename: Yong Hyup
authors.initials: YH
authors.lastname: Kim