Ha, Mingjing and Xia, Yu and Green, A A and Zhang, Weili and Renn, Mike J and Kim, Chris H and Hersam, Mark H and Frisbie, C Daniel. (2010) Printed, Sub-3V Digital Circuits on Plastic from Aqueous Carbon Nanotube Inks. ACS Nano, 4 (8). pp. 4388-4395. ISSN 1936-086X
Full text not available from this repository. (Request a copy)Abstract
Printing electronic components on plastic foils with functional liquid inks is an attractive approach for achieving flexible and low-cost circuitry for applications such as bendable displays and large-area sensors. The challenges for printed electronics, however, include characteristically slow switching frequencies and associated high supply voltages, which together impede widespread application. Combining printable high-capacitance dielectrics with printable high-mobility semiconductors could potentially solve these problems. Here we demonstrate fast, flexible digital circuits based on semiconducting carbon nanotube (CNT) networks and high-capacitance ion gel gate dielectrics, which were patterned by jet printing of liquid inks. Ion gel-gated CNT thin-film transistors (TFTs) with 50 μm channel lengths display ambipolar transport with electron and hole mobilities >20 cm2/V·s; these devices form the basis of printed inverters, NAND gates, and ring oscillators on both polyimide and SiO2 substrates. Five-stage ring oscillators achieve frequencies >2 kHz at supply voltages of 2.5 V, corresponding to stage delay times of 50 μs. This performance represents a substantial improvement for printed circuitry fabricated from functional liquid inks.
Item Type: | Article |
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Additional Information: | Abstract reprinted with permission. Copyright 2010 American Chemical Society. |
Uncontrolled Keywords: | printed electronics; flexible electronics; thin-film transistor; ion gel; ambipolar; delay time |
InterNano Taxonomy: | Nanoscale Objects and Nanostructured Materials > Nanocomposites > Thin films Nanomanufacturing Processes > Nanopatterning/Lithography > 3D lithography Areas of Application > Electronics and Semiconductor Industries Nanoscale Objects and Nanostructured Materials > Nanotubes > Carbon nanotubes |
Collections: | Nanomanufacturing Research Collection |
Related URLs: | |
Depositing User: | Rebecca Reznik-Zellen |
Date Deposited: | 08 Sep 2010 16:34 |
Last Modified: | 19 Sep 2011 21:29 |
URI: | http://eprints.internano.org/id/eprint/548 |
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