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Triboelectric Nanogenerator Based on Biocompatible and Easily Available Polymer Films
Author(s) -
Srither Satturappa R.,
Shankar Rao Doddamane S.,
Krishna Prasad Subbarao
Publication year - 2018
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201800685
Subject(s) - triboelectric effect , nanogenerator , kapton , materials science , surface roughness , cellulose acetate , polymer , voltage , composite material , optoelectronics , nanotechnology , cellulose , polyimide , piezoelectricity , electrical engineering , chemical engineering , layer (electronics) , engineering
We have fabricated robust triboelectric nanogenerators (TENGs) employing different polymer films which are biocompatible and easily available. The combination of polyurethane and PTFE layers is seen to provide the highest TENG parameters with an open circuit peak‐to‐peak output voltage of ∼33.5 V and a current value of 27.4 μA with a gentle tapping force of 0.33 N. The topography of the film surface has been characterized using atomic force microscopy in conjunction with image analysis. We find a very good, albeit non‐linear, correlation between the TENG electrical output and the surface roughness. Our studies do not support any relation between the permittivity of the medium and the TENG output. Employing cellulose acetate and Kapton as the triboelectric layers, we have constructed a simple force sensor, whose output is seen to be highly linear over a large range of force varying from 0.24 to 5.2 N, and a significantly high output of 1.5 V/N.