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Electronics 2016, 5(1), 7; doi:10.3390/electronics5010007

Effects of the Particle Size and the Solvent in Printing Inks on the Capacitance of Printed Parallel-Plate Capacitors

Department of Mechanical Design and Production Engineering, Konkuk University, 120, Neungdong-ro, Gwangjin-gu, Seoul 143-701, Korea
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Author to whom correspondence should be addressed.
Academic Editor: Hyun Wook Kang
Received: 30 November 2015 / Revised: 18 January 2016 / Accepted: 22 January 2016 / Published: 2 February 2016
(This article belongs to the Special Issue Printed Electronics)
View Full-Text   |   Download PDF [1209 KB, uploaded 2 February 2016]   |  

Abstract

Parallel-plate capacitors were fabricated using a printed multi-layer structure in order to determine the effects of particle size and solvent on the capacitance. The conductive-dielectric-conductive layers were sequentially spun using commercial inks and by intermediate drying with the aid of a masking polymeric layer. Both optical and scanning electron microscopy were used to characterize the morphology of the printed layers. The measured capacitance was larger than the theoretically calculated value when ink with small-sized particles was used as the top plate. Furthermore, the use of a solvent whose polarity was similar to that of the underlying dielectric layer enhanced the penetration and resulted in an increase in capacitance. The functional resistance-capacitance low-pass filter was implemented using printed resistors and capacitors, a process that may be scalable in the future. View Full-Text
Keywords: spin printing; multi-layer printing; solution polarity; printed capacitor; RC low pass filter spin printing; multi-layer printing; solution polarity; printed capacitor; RC low pass filter
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Park, S.; Lee, D. Effects of the Particle Size and the Solvent in Printing Inks on the Capacitance of Printed Parallel-Plate Capacitors. Electronics 2016, 5, 7.

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