Ultrathin body poly(3-hexylthiophene) transistors with improved short-channel performance

Chenchen Wang, Jonathan Rivnay, Scott Himmelberger, Kiarash Vakhshouri, Michael F. Toney, Enrique Daniel Gomez, Alberto Salleo

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

The microstructure and charge transport properties of binary blends of regioregular (rr) and regiorandom (RRa) poly(3-hexylthiophene) (P3HT) are investigated. X-ray diffraction of the blended films is consistent with a vertically separated structure, with rr-P3HT preferentially crystallizing at the semiconductor/dielectric interface. Thin film transistors made with these blended films preserve high field effect mobility with rr-P3HTcontent as low as 5.6%. In these dilute blends, we estimate that the thickness of rr-P3HT in the channel is only a few nanometers. Significantly, as a result of such an ultrathin active layer at the interface, short channel effects due to bulk currents are eliminated, suggesting a new route to fabricate high-performance, short-channel, and reliable organic electronic devices.

Original languageEnglish (US)
Pages (from-to)2342-2346
Number of pages5
JournalACS Applied Materials and Interfaces
Volume5
Issue number7
DOIs
StatePublished - Apr 10 2013

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Transistors
Thin film transistors
Transport properties
Charge transfer
Semiconductor materials
X ray diffraction
Microstructure
poly(3-hexylthiophene)

All Science Journal Classification (ASJC) codes

  • Materials Science(all)

Cite this

Wang, Chenchen ; Rivnay, Jonathan ; Himmelberger, Scott ; Vakhshouri, Kiarash ; Toney, Michael F. ; Gomez, Enrique Daniel ; Salleo, Alberto. / Ultrathin body poly(3-hexylthiophene) transistors with improved short-channel performance. In: ACS Applied Materials and Interfaces. 2013 ; Vol. 5, No. 7. pp. 2342-2346.
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Wang, C, Rivnay, J, Himmelberger, S, Vakhshouri, K, Toney, MF, Gomez, ED & Salleo, A 2013, 'Ultrathin body poly(3-hexylthiophene) transistors with improved short-channel performance', ACS Applied Materials and Interfaces, vol. 5, no. 7, pp. 2342-2346. https://doi.org/10.1021/am3027103

Ultrathin body poly(3-hexylthiophene) transistors with improved short-channel performance. / Wang, Chenchen; Rivnay, Jonathan; Himmelberger, Scott; Vakhshouri, Kiarash; Toney, Michael F.; Gomez, Enrique Daniel; Salleo, Alberto.

In: ACS Applied Materials and Interfaces, Vol. 5, No. 7, 10.04.2013, p. 2342-2346.

Research output: Contribution to journalArticle

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