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429. 


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



C. Yang, K. S. Schellhammer, F. Ortmann, S. Sun, R. Dong, M. Karakus, Z. Mics, M. Löffler, F. Zhang, X. Zhuang, E. Cánovas, G. Cuniberti, M. Bonn, and X. Feng

Angewandte Chemie International Edition 56, 3920-3924 (2017)

On-chip micro-supercapacitors (MSCs) are important Si-compatible power-source backups for miniaturized electronics. Despite their tremendous advantages, current on-chip MSCs require harsh processing conditions and typically perform like resistors when filtering ripples from alternating current (AC). Herein, we demonstrated a facile layer-by-layer method towards on-chip MSCs based on an azulene-bridged coordination polymer framework (PiCBA). Owing to the good carrier mobility (5 x 10(-3) cm(2)V(-1) s(-1)) of PiCBA, the permanent dipole moment of azulene skeleton, and ultralow band gap of PiCBA, the fabricated MSCs delivered high specific capacitances of up to 34.1 Fcm(-3) at 50 mV s(-1) and a high volumetric power density of 1323 W cm(-3). Most importantly, such MCSs exhibited AC line-filtering performance (-73 degrees at 120 Hz) with a short resistance-capacitance constant of circa 0.83 ms.



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doi absolute link10.1002/anie.201700679
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