1. Coordination Polymer Framework Based On-Chip Micro-Supercapacitors with AC Line-Filtering Performance.
- Author
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Sun, Sai, Zhang, Fan, Yang, Chongqing, Zhuang, Xiaodong, Dong, Renhao, Feng, Xinliang, Schellhammer, Karl Sebastian, Ortmann, Frank, Cuniberti, Gianaurelio, Karakus, Melike, Mics, Zoltán, Cánovas, Enrique, Bonn, Mischa, and Löffler, Markus
- Subjects
COORDINATION polymers ,ON-chip transformers ,SUPERCAPACITORS ,ALTERNATING currents ,AZULENE ,BAND gaps ,ALUMINUM electrolytic capacitors - 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 cm2 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. [ABSTRACT FROM AUTHOR]- Published
- 2017
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