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Nanocomposite Capacitors with Significantly Enhanced Energy Density and Breakdown Strength Utilizing a Small Loading of Monolayer Titania
Author(s) -
Wen Rongmei,
Guo Junmeng,
Zhao Chunlin,
Liu Yanqing
Publication year - 2018
Publication title -
advanced materials interfaces
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.671
H-Index - 65
ISSN - 2196-7350
DOI - 10.1002/admi.201701088
Subject(s) - materials science , capacitor , dielectric , nanocomposite , monolayer , composite material , film capacitor , dielectric strength , power density , optoelectronics , nanotechnology , electrical engineering , voltage , power (physics) , engineering , physics , quantum mechanics
The dielectric capacitor with high electric energy density is demanded for modern electronic and electrical power systems. However, their energy density is considerably limited by a low dielectric constant and low breakdown strength. Here, thin flexible polymer nanocomposites with high energy density are obtained by only adding a small loading of 2D monolayer titania along with concurrent improvements of dielectric constant and breakdown strength. This work not only first reveals that monolayer titania is an excellent filler that can be comparable to existing fillers in nanocomposite capacitors but also provides a facile approach to thin flexible compact dielectric films with ultrahigh energy density and breakdown strength for energy storage applications.