| CROSS-DISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY |
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Electrical Studies on Pentacene Thin Film Transistors with Different Channel Widths |
Jaya Lohani1, Manoj Gaur2, Upendra Kumar1, V. R. Balakrishnan1, Harsh1, S. V. Eswaran2 |
| 1Solid State Physics Laboratory, Lucknow Road, Delhi-110054,India2St. Stephen's College, University of Delhi, Delhi-110007, India |
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| Cite this article: |
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Jaya Lohani, Manoj Gaur, Upendra Kumar et al 2010 Chin. Phys. Lett. 27 048102 |
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Abstract In order to conduct electrical studies on organic thin film transistors, top-contact devices are fabricated by growing polycrystalline films of freshly synthesized pentacene over Si/SiO2 substrates with two different channel widths under identical conditions. Reasonable field effect mobilities in order of 10-2-10-3 cm2V-1s-1 are obtained in these devices. An elaborative electrical characterization of all the devices is undertaken to study the variance in output saturation current, field effect mobility, and leakage current with aging under ambient conditions. As compared to the devices with longer channel width, the devices with shorter channel width exhibit better electrical performance initially. However, the former devices sustain the moderate performance much longer than the latter ones.
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| Keywords:
81.05.Fb
72.80.Le
82.35.Cd
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Received: 24 December 2009
Published: 27 March 2010
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| PACS: |
81.05.Fb
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(Organic semiconductors)
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72.80.Le
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(Polymers; organic compounds (including organic semiconductors))
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82.35.Cd
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(Conducting polymers)
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[1] Sheraw C D et al 2002 Appl. Phys. Lett. 80 1088
[2] Anthony J E 2006 Chem. Rev. 106 5028
[3] Lohani J et al 2008 Pramana J. Phys. 71 579
[4] Angelis F De et al 2008 Chem. Phys. Lett. 462 234
[5] Kim S H et al 2008 Org. Electron. 9 673
[6] Han S H, Kim J H et al 2006 Appl. Phys. Lett. 88 073519
[7] Li D et al 2005 Appl. Phys. Lett. 86 042105
[8] Qiu Y et al 2003 Appl. Phys. Lett. 83 1644
[9] Jurchescu O D et al 2005 Appl. Phys. Lett. 87 052102
[10] Jurchescu O D et al 2004 Appl. Phys. Lett. 84 3061
[11] Choi M H et al 2009 Org. Electron. 10 421
[12] Choo M H et al 2002 Thin Solid Films 420--421 492
[13] Goodings E P et al 1972 J. Chem. Soc. PT I 1310
[14] Yu S, Yi M and Ma D 2008 Thin Solid Films 516 3346
[15] Kang S J, Noh M et al 2004 Jpn. J. Appl. Phys. 43 7718
[16] Lim S C et al 2005 Mater. Sci. Engin. B 121 211
[17] Parisse P, Picozzi S and Ottaviano L 2007 Org. Electron. 8 498 |
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