A Flexible Electret Membrane with Persistent Electrostatic Effect and Resistance to Harsh Environment for Energy Harvesting.

ABSTRACT: A novel flexible electret membrane, exhibiting persistent electrostatic effect, distinctive temperature stability and outstanding capability of resistance to harsh environment and fatigue, is demonstrated by experiment. Its excellent electret performance is correlated to the synergy of three factors, which are space charge injection, dipole orientation and interfacial polarization according to the analysis of charge storage mechanism. This electret membrane is provided with sandwich configuration PTFE/THV/PTFE, prepared by hot pressing method and thermal charging technology. After wiped its surface with alcohol, its surface potential declines to zero from -550 V, then recovers rapidly to -310 V and finally maintains constant for 800 hours, which shows that its electret performance distinct

SUBMITTER: Huiming X 

PROVIDER: S-EPMC5559523 | biostudies-literature | 2017 Aug

REPOSITORIES: biostudies-literature