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Scalable Solution-processed Fabrication Strategy for High-performance, Flexible, Transparent Electrodes with Embedded Metal Mesh
Published on: June 23, 2017
All-Inorganic Flexible Embedded Thin-Film Capacitors for Dielectric Energy Storage with High Performance
Zhongshuai Liang1,2, Ming Liu1,2, Lvkang Shen1,2
1School of Microelectronics , Xi'an Jiaotong University , Xi'an 710049 , China.
Abstract:
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.
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