Effect of Processing Parameters on Performance of Spray-Deposited Organic Thin-Film Transistors
The performance of organic thin-film transistors (OTFTs) is often strongly dependent on the fabrication procedure. In this study, we fabricate OTFTs of soluble small-molecule organic semiconductors by spray-deposition and explore the effect of processing parameters on film morphology and device mobi...
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| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2011-01-01
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| Series: | Journal of Nanotechnology |
| Online Access: | http://dx.doi.org/10.1155/2011/914510 |
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| author | Jack W. Owen Natalia A. Azarova Marsha A. Loth Markos Paradinas Mariona Coll Carmen Ocal John E. Anthony Oana D. Jurchescu |
| author_facet | Jack W. Owen Natalia A. Azarova Marsha A. Loth Markos Paradinas Mariona Coll Carmen Ocal John E. Anthony Oana D. Jurchescu |
| author_sort | Jack W. Owen |
| collection | DOAJ |
| description | The performance of organic thin-film transistors (OTFTs) is often strongly dependent on the fabrication procedure. In this study, we fabricate OTFTs of soluble small-molecule organic semiconductors by spray-deposition and explore the effect of processing parameters on film morphology and device mobility. In particular, we report on the effect of the nature of solvent, the pressure of the carrier gas used in deposition, and the spraying distance. We investigate the surface morphology using scanning force microscopy and show that the molecules pack along the π-stacking direction, which is the preferred charge transport direction. Our results demonstrate that we can tune the field-effect mobility of spray-deposited devices two orders of magnitude, from 10−3 cm2/Vs to 10−1 cm2/Vs, by controlling fabrication parameters. |
| format | Article |
| id | doaj-art-2efb0d8b89a7446cb7be19debab4920d |
| institution | Kabale University |
| issn | 1687-9503 1687-9511 |
| language | English |
| publishDate | 2011-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Nanotechnology |
| spelling | doaj-art-2efb0d8b89a7446cb7be19debab4920d2025-02-03T06:12:14ZengWileyJournal of Nanotechnology1687-95031687-95112011-01-01201110.1155/2011/914510914510Effect of Processing Parameters on Performance of Spray-Deposited Organic Thin-Film TransistorsJack W. Owen0Natalia A. Azarova1Marsha A. Loth2Markos Paradinas3Mariona Coll4Carmen Ocal5John E. Anthony6Oana D. Jurchescu7Department of Physics, Wake Forest University, Winston-Salem, NC 27109, USADepartment of Physics, Wake Forest University, Winston-Salem, NC 27109, USADepartment of Chemistry, University of Kentucky, Lexington, KY 40506, USAInstitut de Ciència de Materials de Barcelona, ICMAB-CSIC, Campus UAB, 08193-Barcelona, SpainInstitut de Ciència de Materials de Barcelona, ICMAB-CSIC, Campus UAB, 08193-Barcelona, SpainInstitut de Ciència de Materials de Barcelona, ICMAB-CSIC, Campus UAB, 08193-Barcelona, SpainDepartment of Chemistry, University of Kentucky, Lexington, KY 40506, USADepartment of Physics, Wake Forest University, Winston-Salem, NC 27109, USAThe performance of organic thin-film transistors (OTFTs) is often strongly dependent on the fabrication procedure. In this study, we fabricate OTFTs of soluble small-molecule organic semiconductors by spray-deposition and explore the effect of processing parameters on film morphology and device mobility. In particular, we report on the effect of the nature of solvent, the pressure of the carrier gas used in deposition, and the spraying distance. We investigate the surface morphology using scanning force microscopy and show that the molecules pack along the π-stacking direction, which is the preferred charge transport direction. Our results demonstrate that we can tune the field-effect mobility of spray-deposited devices two orders of magnitude, from 10−3 cm2/Vs to 10−1 cm2/Vs, by controlling fabrication parameters.http://dx.doi.org/10.1155/2011/914510 |
| spellingShingle | Jack W. Owen Natalia A. Azarova Marsha A. Loth Markos Paradinas Mariona Coll Carmen Ocal John E. Anthony Oana D. Jurchescu Effect of Processing Parameters on Performance of Spray-Deposited Organic Thin-Film Transistors Journal of Nanotechnology |
| title | Effect of Processing Parameters on Performance of Spray-Deposited Organic Thin-Film Transistors |
| title_full | Effect of Processing Parameters on Performance of Spray-Deposited Organic Thin-Film Transistors |
| title_fullStr | Effect of Processing Parameters on Performance of Spray-Deposited Organic Thin-Film Transistors |
| title_full_unstemmed | Effect of Processing Parameters on Performance of Spray-Deposited Organic Thin-Film Transistors |
| title_short | Effect of Processing Parameters on Performance of Spray-Deposited Organic Thin-Film Transistors |
| title_sort | effect of processing parameters on performance of spray deposited organic thin film transistors |
| url | http://dx.doi.org/10.1155/2011/914510 |
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