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Kanbur Y, Irimia-Vladu M, Głowacki ED, Voss G, Baumgartner M, Schwabegger G, Leonat L, Ullah M, Sarica H, Erten-Ela S, Schwödiauer R, Sitter H, Küçükyavuz Z, Bauer S, Sariciftci NS. Vacuum-processed polyethylene as a dielectric for low operating voltage organic field effect transistors. ORGANIC ELECTRONICS 2012; 13:919-924. [PMID: 23483783 PMCID: PMC3587348 DOI: 10.1016/j.orgel.2012.02.006] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2011] [Revised: 02/08/2012] [Accepted: 02/11/2012] [Indexed: 05/18/2023]
Abstract
We report on the fabrication and performance of vacuum-processed organic field effect transistors utilizing evaporated low-density polyethylene (LD-PE) as a dielectric layer. With C60 as the organic semiconductor, we demonstrate low operating voltage transistors with field effect mobilities in excess of 4 cm2/Vs. Devices with pentacene showed a mobility of 0.16 cm2/Vs. Devices using tyrian Purple as semiconductor show low-voltage ambipolar operation with equal electron and hole mobilities of ∼0.3 cm2/Vs. These devices demonstrate low hysteresis and operational stability over at least several months. Grazing-angle infrared spectroscopy of evaporated thin films shows that the structure of the polyethylene is similar to solution-cast films. We report also on the morphological and dielectric properties of these films. Our experiments demonstrate that polyethylene is a stable dielectric supporting both hole and electron channels.
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Affiliation(s)
- Yasin Kanbur
- Department of Polymer Science and Technology, Middle East Technical University, Balgat, Ankara, Turkey
- Linz Institute for Organic Solar Cells (LIOS), Physical Chemistry, Johannes Kepler University, Linz, Austria
| | - Mihai Irimia-Vladu
- Linz Institute for Organic Solar Cells (LIOS), Physical Chemistry, Johannes Kepler University, Linz, Austria
- Department of Soft Matter Physics, Johannes Kepler University, Linz, Austria
- Corresponding author. Address: Department of Soft Matter Physics & Linz Institute for Organic Solar Cells (LIOS), Physical Chemistry, Johannes Kepler University, Linz, Austria. Tel.: + 43 732 2468 8767; fax: + 43 732 2468 9273.
| | - Eric D. Głowacki
- Linz Institute for Organic Solar Cells (LIOS), Physical Chemistry, Johannes Kepler University, Linz, Austria
| | - Gundula Voss
- Department of Bioorganic Chemistry, University of Bayreuth, D-95440, Bayreuth, Germany
| | - Melanie Baumgartner
- Department of Soft Matter Physics, Johannes Kepler University, Linz, Austria
| | - Günther Schwabegger
- Institute of Semiconductor and Solid State Physics, Johannes Kepler University, Linz, Austria
| | - Lucia Leonat
- Politehnica University of Bucharest, Faculty of Applied Chemistry and Materials Science, Bucharest, Romania
| | - Mujeeb Ullah
- Institute of Semiconductor and Solid State Physics, Johannes Kepler University, Linz, Austria
| | - Hizir Sarica
- Ege University, Solar Energy Institute, Bornova-Izmir, Turkey
| | - Sule Erten-Ela
- Ege University, Solar Energy Institute, Bornova-Izmir, Turkey
| | | | - Helmut Sitter
- Institute of Semiconductor and Solid State Physics, Johannes Kepler University, Linz, Austria
| | - Zuhal Küçükyavuz
- Department of Polymer Science and Technology, Middle East Technical University, Balgat, Ankara, Turkey
| | - Siegfried Bauer
- Department of Soft Matter Physics, Johannes Kepler University, Linz, Austria
| | - Niyazi Serdar Sariciftci
- Linz Institute for Organic Solar Cells (LIOS), Physical Chemistry, Johannes Kepler University, Linz, Austria
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