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標題: High-frequency polymer diode rectifiers for flexible wireless power-transmission sheets
作者: Lin, C.Y.
Tsai, C.H.
Lin, H.T.
Chang, L.C.
Yeh, Y.H.
Pei, Z.W.
Peng, Y.R.
Wu, C.C.
關鍵字: Polymer rectifying diode;Wireless power transmission;Flexible;rectifier;thin-film transistors;printed organic transistors;solar-cells;mobility;semiconductors;pentacene;circuit;tags
Project: Organic Electronics
期刊/報告no:: Organic Electronics, Volume 12, Issue 11, Page(s) 1777-1782.
In this work, we successfully implemented flexible high-frequency rectifying diodes on polycarbonate substrates using the polythiophene-based semiconducting polymers. We show that the appropriate conductivity of the intermediate hole-injection layer PED-OT: PSS between the anode and the semiconducting polymer is critical to simultaneously achieve enhanced forward currents and rectification ratios. Among the semiconducting polymers studied (P3HT and PQT-12), the diodes based on carefully purified PQT-12 exhibited higher forward currents, higher rectification ratios, much better environmental stability, and much higher operation frequencies. A forward current density up to similar to 6 A/cm(2) at 5 V, a rectification ratio up to 2 x 10(4) at +/- 5V, and an operation frequency of the diode rectifier over 14 MHz were achieved with the PQT-12 rectifying diodes. To demonstrate the use of the high-speed polymer rectifying diodes in wireless power transmission, we integrate the polymer-based vertical Schottky diode rectifier, printed antenna and capacitors on plastic substrates to demonstrate a flexible wireless power-transmission sheet that can convert a 13.56 MHz electromagnetic wave into the dc power to drive load devices. Crown Copyright (C) 2011 Published by Elsevier B.V. All rights reserved.
ISSN: 1566-1199
DOI: 10.1016/j.orgel.2011.07.006
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