%0 Journal Article
%A Liang, Zhongshuai
%A Liu, Ming
%A Shen, Lvkang
%A Lu, Lu
%A Ma, Chunrui
%A Lu, Xiaoli
%A Lou, Xiaojie
%A Jia, Chun-Lin
%T All-Inorganic Flexible Embedded Thin-Film Capacitors for Dielectric Energy Storage with High Performance
%J ACS applied materials & interfaces
%V 11
%N 5
%@ 1944-8252
%C Washington, DC
%I Soc.
%M FZJ-2020-02717
%P 5247 - 5255
%D 2019
%X As passive components in flexible electronics, the dielectric capacitors for energy storage are facing the challenges of flexibility and capability for integration and miniaturization. In this work, the all-inorganic flexible dielectric film capacitors have been obtained. The flexible capacitors show a desirable recoverable energy density (Wrec) of 40.6 J/cm3 and a good energy efficiency (η) of 68.9%. Moreover, they have no obvious deterioration on both the Wrec and η after 104 times of mechanical bending cycles or under the bending state with a curvature radius of 4 mm. Besides, the outstanding stability of the capacitors against cycle fatigue over fast 106 charge–discharge cycles is demonstrated. Most importantly, they work properly at a wide temperature range from −120 to 150 °C with Wrec > 15 J/cm3 and η > 70%. These fascinating performances endow the flexible capacitors with huge potential application in the future “microenergy storage” system in flexible electronics.
%F PUB:(DE-HGF)16
%9 Journal Article
%$ pmid:30640435
%U <Go to ISI:>//WOS:000458347900060
%R 10.1021/acsami.8b18429
%U https://juser.fz-juelich.de/record/878248