Selectively patterned highly conductive poly(3,4-ethylenedioxythiophene)- tosylate electrodes for high performance organic field-effect transistors

Jung Ah Lim, Song Hee Park, Ji Hye Baek, Young Dong Ko, Hwa Sung Lee, Kilwon Cho, Jun Young Lee, Dong Ryeol Lee, Jeong Ho Cho

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

We have improved the performance of pentacene field-effect transistors by using highly conductive poly(3,4-ethylenedioxythiophene)-tosylate (PEDOT-Tos) source-drain electrodes (∼ 103 S/cm) formed by a simple solution-based process. A high field-effect mobility of 0.25 cm2 /Vs and an ON/OFF current ratio of 107 were obtained in pentacene-based bottom contact organic field-effect transistors (OFETs), which constitutes an improvement over OFETs based on Au and PEDOT:PSS electrodes. Two-dimensional grazing incidence x-ray diffraction and ultraviolet photoemission spectroscopy results confirmed that the crystalline properties of the pentacene film and the hole injection from the PEDOT-Tos electrode to the pentacene layer are more efficient than those from Au and PEDOT:PSS electrodes.

Original languageEnglish
Article number233509
JournalApplied Physics Letters
Volume95
Issue number23
DOIs
Publication statusPublished - 2009 Dec 18

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field effect transistors
electrodes
grazing incidence
x ray diffraction
photoelectric emission
injection
spectroscopy

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

Cite this

Lim, Jung Ah ; Park, Song Hee ; Baek, Ji Hye ; Ko, Young Dong ; Lee, Hwa Sung ; Cho, Kilwon ; Lee, Jun Young ; Lee, Dong Ryeol ; Cho, Jeong Ho. / Selectively patterned highly conductive poly(3,4-ethylenedioxythiophene)- tosylate electrodes for high performance organic field-effect transistors. In: Applied Physics Letters. 2009 ; Vol. 95, No. 23.
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abstract = "We have improved the performance of pentacene field-effect transistors by using highly conductive poly(3,4-ethylenedioxythiophene)-tosylate (PEDOT-Tos) source-drain electrodes (∼ 103 S/cm) formed by a simple solution-based process. A high field-effect mobility of 0.25 cm2 /Vs and an ON/OFF current ratio of 107 were obtained in pentacene-based bottom contact organic field-effect transistors (OFETs), which constitutes an improvement over OFETs based on Au and PEDOT:PSS electrodes. Two-dimensional grazing incidence x-ray diffraction and ultraviolet photoemission spectroscopy results confirmed that the crystalline properties of the pentacene film and the hole injection from the PEDOT-Tos electrode to the pentacene layer are more efficient than those from Au and PEDOT:PSS electrodes.",
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Selectively patterned highly conductive poly(3,4-ethylenedioxythiophene)- tosylate electrodes for high performance organic field-effect transistors. / Lim, Jung Ah; Park, Song Hee; Baek, Ji Hye; Ko, Young Dong; Lee, Hwa Sung; Cho, Kilwon; Lee, Jun Young; Lee, Dong Ryeol; Cho, Jeong Ho.

In: Applied Physics Letters, Vol. 95, No. 23, 233509, 18.12.2009.

Research output: Contribution to journalArticle

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T1 - Selectively patterned highly conductive poly(3,4-ethylenedioxythiophene)- tosylate electrodes for high performance organic field-effect transistors

AU - Lim, Jung Ah

AU - Park, Song Hee

AU - Baek, Ji Hye

AU - Ko, Young Dong

AU - Lee, Hwa Sung

AU - Cho, Kilwon

AU - Lee, Jun Young

AU - Lee, Dong Ryeol

AU - Cho, Jeong Ho

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AB - We have improved the performance of pentacene field-effect transistors by using highly conductive poly(3,4-ethylenedioxythiophene)-tosylate (PEDOT-Tos) source-drain electrodes (∼ 103 S/cm) formed by a simple solution-based process. A high field-effect mobility of 0.25 cm2 /Vs and an ON/OFF current ratio of 107 were obtained in pentacene-based bottom contact organic field-effect transistors (OFETs), which constitutes an improvement over OFETs based on Au and PEDOT:PSS electrodes. Two-dimensional grazing incidence x-ray diffraction and ultraviolet photoemission spectroscopy results confirmed that the crystalline properties of the pentacene film and the hole injection from the PEDOT-Tos electrode to the pentacene layer are more efficient than those from Au and PEDOT:PSS electrodes.

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