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Coordination Polymer Framework Based On‐Chip Micro‐Supercapacitors with AC Line‐Filtering Performance
Author(s) -
Yang Chongqing,
Schellhammer Karl Sebastian,
Ortmann Frank,
Sun Sai,
Dong Renhao,
Karakus Melike,
Mics Zoltán,
Löffler Markus,
Zhang Fan,
Zhuang Xiaodong,
Cánovas Enrique,
Cuniberti Gianaurelio,
Bonn Mischa,
Feng Xinliang
Publication year - 2017
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201700679
Subject(s) - azulene , supercapacitor , capacitance , resistor , materials science , chip , optoelectronics , dipole , constant current , nanotechnology , electrical engineering , current (fluid) , voltage , chemistry , electrode , engineering , organic chemistry
Abstract 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 (5×10 −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 F cm −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° at 120 Hz) with a short resistance–capacitance constant of circa 0.83 ms.