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Coordination Polymer Framework Based On-Chip Micro-Supercapacitors with AC Line-Filtering Performance.

Chongqing Yang1,2, Karl Sebastian Schellhammer3, Frank Ortmann3

  • 1School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Dongchuan Road 800, 200240, Shanghai, China.

Angewandte Chemie (International Ed. in English)
|March 8, 2017
PubMed
Summary
This summary is machine-generated.

Researchers developed facile on-chip micro-supercapacitors (MSCs) using a novel coordination polymer. These MSCs offer high capacitance and power density, improving AC line-filtering for miniaturized electronics.

Keywords:
AC line-filteringazulenecoordination polymerslayer-by-layer methodsmicro-supercapacitors

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Area of Science:

  • Materials Science
  • Electrochemistry
  • Nanotechnology

Background:

  • On-chip micro-supercapacitors (MSCs) are crucial for miniaturized electronics, but current designs require harsh processing and exhibit poor AC filtering.
  • Existing MSCs often function as resistors, limiting their effectiveness in ripple filtering for alternating current (AC).

Purpose of the Study:

  • To develop a facile fabrication method for on-chip MSCs with improved performance.
  • To demonstrate the potential of azulene-bridged coordination polymer frameworks for advanced energy storage applications.

Main Methods:

  • A layer-by-layer fabrication method was employed using an azulene-bridged coordination polymer framework (PiCBA).
  • Characterization of the PiCBA material focused on carrier mobility, dipole moment, and band gap properties.

Main Results:

  • The fabricated MSCs achieved high specific capacitances (up to 34.1 F cm⁻³) and volumetric power density (1323 W cm⁻³).
  • The MSCs demonstrated effective AC line-filtering performance with a phase shift of -73° at 120 Hz.
  • A low resistance-capacitance (RC) constant of approximately 0.83 ms was achieved, indicating efficient filtering.

Conclusions:

  • The facile layer-by-layer method using PiCBA offers a promising route for high-performance on-chip MSCs.
  • The unique properties of the PiCBA framework enable superior energy storage and AC filtering capabilities.
  • These advanced MSCs are suitable for power backup and ripple filtering in next-generation miniaturized electronic devices.