Open AccessSuperior electric storage on an amorphous perfluorinated polymer surface
Author(s) -
Mikio Fukuhara,
Tomoyuki Kuroda,
Fumihiko Hasegawa,
Takashi Sueyoshi
Publication year - 2016
Publication title -
scientific reports
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.24
H-Index - 213
ISSN - 2045-2322
DOI - 10.1038/srep22012
Subject(s) - nanometre , amorphous solid , polymer , materials science , nyquist plot , capacitor , phase diagram , optoelectronics , nanotechnology , electric charge , phase (matter) , voltage , composite material , electrical engineering , physics , chemistry , electrode , electrochemistry , organic chemistry , quantum mechanics , dielectric spectroscopy , engineering
Amorphous perfluoroalkenyl vinyl ether polymer devices can store a remarkably powerful electric charge because their surface contains nanometre-sized cavities that are sensitive to the so-called quantum-size effect. With a work function of approximately 10 eV, the devices show a near-vertical line in the Nyquist diagram and a horizontal line near the −90° phase angle in the Bode diagram. Moreover, they have an integrated effect on the surface area for constant current discharging. This effect can be explained by the distributed constant electric circuit with a parallel assembly of nanometre-sized capacitors on a highly insulating polymer. The device can illuminate a red LED light for 3 ms after charging it with 1 mA at 10 V. Further gains might be attained by integrating polymer sheets with a micro-electro mechanical system.