Aerosol-Jet-Printed, 1 Volt H‑Bridge Drive Circuit on Plastic with Integrated Electrochromic Pixel

In this report, we demonstrate a printed, flexible, and low-voltage circuit that successfully drives a polymer electrochromic (EC) pixel as large as 4 mm2 that is printed on the same substrate. All of the key components of the drive circuitry, namely, resistors, capacitors, and transistors, were aer...

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Veröffentlicht in:ACS applied materials & interfaces 2013-12, Vol.5 (24), p.13198-13206
Hauptverfasser: Ha, Mingjing, Zhang, Wei, Braga, Daniele, Renn, Michael J, Kim, Chris H, Frisbie, C. Daniel
Format: Artikel
Sprache:eng
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Zusammenfassung:In this report, we demonstrate a printed, flexible, and low-voltage circuit that successfully drives a polymer electrochromic (EC) pixel as large as 4 mm2 that is printed on the same substrate. All of the key components of the drive circuitry, namely, resistors, capacitors, and transistors, were aerosol-jet-printed onto a plastic foil; metallic electrodes and interconnects were the only components prepatterned on the plastic by conventional photolithography. The large milliampere drive currents necessary to switch a 4 mm2 EC pixel were controlled by printed electrolyte-gated transistors (EGTs) that incorporate printable ion gels for the gate insulator layers and poly(3-hexylthiophene) for the semiconductor channels. Upon application of a 1 V input pulse, the circuit switches the printed EC pixel ON (red) and OFF (blue) two times in approximately 4 s. The performance of the circuit and the behavior of the individual resistors, capacitors, EGTs, and the EC pixel are analyzed as functions of the printing parameters and operating conditions.
ISSN:1944-8244
1944-8252
DOI:10.1021/am404204q