Skip to main content Accessibility help
×
Home
Hostname: page-component-99c86f546-7c2ld Total loading time: 0.278 Render date: 2021-12-07T09:13:53.688Z Has data issue: true Feature Flags: { "shouldUseShareProductTool": true, "shouldUseHypothesis": true, "isUnsiloEnabled": true, "metricsAbstractViews": false, "figures": true, "newCiteModal": false, "newCitedByModal": true, "newEcommerce": true, "newUsageEvents": true }

Investigation on different organic semiconductor/organic dielectric interfaces in pentacene-based thin-film transistors

Published online by Cambridge University Press:  01 February 2011

Emanuele Orgiu
Affiliation:
emanuele.orgiu@diee.unica.it, University of Cagliari, Cagliari, Italy, DIEE, Department of Electrical nd Electronic Engineering, Piazza D'Armi, Cagliari, 09123, Italy, +39 070 675 5769, +39 070 675 5782
Mohammad Taki
Affiliation:
mohamad.taki@gmail.com, University of Cagliari, DIEE, Department of Electrical and Electronic Engineering, piazza d'armi, Cagliari, 09123, Italy
Beatrice Fraboni
Affiliation:
beatrice.fraboni@unibo.it, University of Bologna, Department of Physics, viale Berti Pichat 6/2, Bologna, 40127, Italy
Simone Locci
Affiliation:
simone.locci@diee.unica.it, University of Cagliari, DIEE, Department of Electrical and Electronic Engineering, piazza d'armi, Cagliari, 09123, Italy
Annalisa Bonfiglio
Affiliation:
annalisa@diee.unica.it, University of Cagliari, DIEE, Department of Electrical and Electronic Engineering, piazza d'armi, Cagliari, 09123, Italy
Get access

Abstract

Organic Thin-Film Transistors (OTFTs) in top-contact configuration and Metal-Insulator-Semiconductor (MIS) structures with different organic dielectrics as the gate insulator have been fabricated using the same organic semiconductor layer, pentacene, in order to investigate the changes in the electrical behavior by varying the interface properties. A gold bottom gate electrode was sputtered on a glass substrate whereas gold source and drain were thermally evaporated onto the pentacene layer. Several organic dielectrics have been tested as insulating layers, namely were poly(vinyl alcohol) (PVA), polyvinyl alcohol with ammonium dichromate (PVAad) as a cross-linking agent, poly (4-vinyl phenol) (PVP), poly(dimethylsiloxane) (PDMS) and poly(methylsilsesquioxane) (pMSSQ). The interesting differences found out by varying the interface confirm that the chemical-physical interaction between semiconductor and dielectric is crucial for the conduction mechanisms of the charge carriers. In particular we observed that the electron traps can influence not only the electron transport, therefore allowing a more or less marked ambipolar behavior, but also affect the hole transport.

Type
Research Article
Copyright
Copyright © Materials Research Society 2008

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

[1] Yoon, M., Kim, C., Fachetti, A. and Marks, T. J., J. Am. Chem. Soc. 128, 12851 (2006)10.1021/ja063290dCrossRefGoogle Scholar
[2] Orgiu, E., Manunza, I., Sanna, M., Cosseddu, P. and Bonfiglio, A., Thin Solid Films 516, 1462 (2008)10.1016/j.tsf.2007.03.157CrossRefGoogle Scholar
[3] Jang, Y., Kim, D. H., Park, Y. D., Cho, J. H., Hwang, M., Cho, K., Appl. Phys. Lett. 88, 72101 (2006)10.1063/1.2173633CrossRefGoogle Scholar
[4] Singh, T. B., Meghdadi, F., Gunes, S., Marjanovic, N., Horowitz, G., Lang, P., Bauer, S. and Sariciftci, N. S., Adv. Mater. 17, 2315 (2005)10.1002/adma.200501109CrossRefGoogle Scholar
[5] Chua, L., Zaumseil, J., Chang, J., Ou, E., Ho, P., Sirringhaus, H. and Friend, R. H., Nature 434, 194 (2005)10.1038/nature03376CrossRefGoogle Scholar
[6] Chou, W., Kuo, C., Cheng, H., Chen, Y., Tang, F., Yang, F., Shu, D. and Liao, C., Appl. Phys. Lett. 89, 112126 (2006)10.1063/1.2354426CrossRefGoogle Scholar
[7] Knipp, D., Street, R. A., Voelkel, A., Ho, A., J. Appl. Phys. 93, 347 (2003)10.1063/1.1525068CrossRefGoogle Scholar
[8] Steudel, S., Vusser, S. De, Jonge, S. De, Janssen, D., Verlaak, S., Genoe, P., Heremans, J., Appl. Phys. Lett. 85, 4400 (2004)10.1063/1.1815042CrossRefGoogle Scholar
[9] Grimm, L., Hilke, K.-J. and Scharrer, E., J. Electrochem. Soc. 130, 1767 (1983)10.1149/1.2120089CrossRefGoogle Scholar
[10] Shön, J. H. and Batlogg, , Journal of Applied Physics 89, 336 (2001)10.1063/1.1329667CrossRefGoogle Scholar

Send article to Kindle

To send this article to your Kindle, first ensure no-reply@cambridge.org is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about sending to your Kindle. Find out more about sending to your Kindle.

Note you can select to send to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be sent to your device when it is connected to wi-fi. ‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.

Find out more about the Kindle Personal Document Service.

Investigation on different organic semiconductor/organic dielectric interfaces in pentacene-based thin-film transistors
Available formats
×

Send article to Dropbox

To send this article to your Dropbox account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your <service> account. Find out more about sending content to Dropbox.

Investigation on different organic semiconductor/organic dielectric interfaces in pentacene-based thin-film transistors
Available formats
×

Send article to Google Drive

To send this article to your Google Drive account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your <service> account. Find out more about sending content to Google Drive.

Investigation on different organic semiconductor/organic dielectric interfaces in pentacene-based thin-film transistors
Available formats
×
×

Reply to: Submit a response

Please enter your response.

Your details

Please enter a valid email address.

Conflicting interests

Do you have any conflicting interests? *