Electrical Transport and Field-Effect Transistors Using Inkjet-Printed SWCNT Films Having Different Functional Side Groups
| Autor: | Panu Helistö, Geza Toth, Mauricio Terrones, Eduardo Gracia-Espino, Juho Luomahaara, Robert Vajtai, Niina Halonen, Giovanni Sala, Heli Jantunen, Heikki Seppä, Krisztian Kordas, Flavio Pino, Jani Mäklin, Pulickel M. Ajayan |
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| Rok vydání: | 2010 |
| Předmět: |
Nanotube
Materials science Transistors Electronic Silicon Macromolecular Substances Surface Properties Gate dielectric Molecular Conformation General Physics and Astronomy chemistry.chemical_element Carbon nanotube Sulfonic acid law.invention Electron Transport chemistry.chemical_compound law percolation threshold Materials Testing Nanotechnology General Materials Science Particle Size Composite material Schottky barrier Computer Peripherals chemistry.chemical_classification inkjet printing carbon nanotubes nanotube network Electric Conductivity General Engineering Equipment Design Nanostructures Equipment Failure Analysis chemistry Chemical engineering Electrode Field-effect transistor Crystallization Ethylene glycol |
| Zdroj: | Gracia-Espino, E, Sala, G, Pino, F, Halonen, N, Luomahaara, J, Mäklin, J, Tóth, G, Kordás, K, Jantunen, H, Terrones, M, Helistö, P, Seppä, H, Ajayan, P M & Vajtai, R 2010, ' Electrical transport and field-effect transistors using inkjet-printed SWCNT films having different functional side groups ', ACS Nano, vol. 4, no. 6, pp. 3318-3324 . https://doi.org/10.1021/nn1000723 |
| ISSN: | 1936-086X 1936-0851 |
| DOI: | 10.1021/nn1000723 |
| Popis: | The electrical properties of random networks of single-wall carbon nanotubes (SWNTs) obtained by inkjet printing are studied. Water-based stable inks of functionalized SWNTs (carboxylic acid, amide, poly(ethylene glycol), and polyaminobenzene sulfonic acid) were prepared and applied to inkjet deposit microscopic patterns of nanotube films on lithographically defined silicon chips with a back-side gate arrangement. Source-drain transfer characteristics and gate-effect measurements confirm the important role of the chemical functional groups in the electrical behavior of carbon nanotube networks. Considerable nonlinear transport in conjunction with a high channel current on/off ratio of approximately 70 was observed with poly(ethylene glycol)-functionalized nanotubes. The positive temperature coefficient of channel resistance shows the nonmetallic behavior of the inkjet-printed films. Other inkjet-printed field-effect transistors using carboxyl-functionalized nanotubes as source, drain, and gate electrodes, poly(ethylene glycol)-functionalized nanotubes as the channel, and poly(ethylene glycol) as the gate dielectric were also tested and characterized. |
| Databáze: | OpenAIRE |
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