Organic thin-film transistors based on carbonyl-functionalized quaterthiophenes: High mobility N-channel semiconductors and ambipolar transport

Myung Han Yoon; Sara A. DiBenedetto; Antonio Facchetti; Tobin J. Marks

doi:10.1021/ja045124g

Organic thin-film transistors based on carbonyl-functionalized quaterthiophenes: High mobility N-channel semiconductors and ambipolar transport

Myung Han Yoon, Sara A. DiBenedetto, Antonio Facchetti, Tobin J. Marks

Northwestern University

Research output: Contribution to journal › Article

311 Citations (Scopus)

Abstract

New carbonyl-functionalized quaterthiophenes, 5, 5′″-diheptanoyl-2,2′:5′,2″:5″,2′″-quaterthiophene (DHCO-4T), 5, 5′″-diperfluorohexylcarbonyl-2,2′:5′,2″:5″,2′″-quaterthiophene (DFHCO-4T), and 2,7-[bis-(5-perfluorohexylcarbonylthien-2-yl)]-4H-cyclopenta[2,1-b:3,4-b′]-dithiophen-4-one (DFHCO-4TCO) have been synthesized and characterized. Field-effect transistors fabricated with these materials exhibit high electron mobilities both in a vacuum (up to 0.6 cm² V^-1 s^-1) and in air (up to 0.02 cm² V^-1 s^-1) and very high I_on:I_off currents ratios (>10⁷). DHCO-4T is the first organic material exhibiting excellent ambipolar transport (μ_e/μ_h up to 0.1/0.01 cm² V^-1 s^-1, (I_on:I_off)_e/(I_on:I_off)_h up to 10⁷/10⁸ for the same device) over a broad range of deposition temperatures. These materials are therefore promising for organic complementary circuits.

Original language	English
Pages (from-to)	1348-1349
Number of pages	2
Journal	Journal of the American Chemical Society
Volume	127
Issue number	5
DOIs	https://doi.org/10.1021/ja045124g
Publication status	Published - Feb 9 2005

ASJC Scopus subject areas

Catalysis
Chemistry(all)
Biochemistry
Colloid and Surface Chemistry

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Yoon, M. H., DiBenedetto, S. A., Facchetti, A., & Marks, T. J. (2005). Organic thin-film transistors based on carbonyl-functionalized quaterthiophenes: High mobility N-channel semiconductors and ambipolar transport. Journal of the American Chemical Society, 127(5), 1348-1349. https://doi.org/10.1021/ja045124g

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abstract = "New carbonyl-functionalized quaterthiophenes, 5, 5′″-diheptanoyl-2,2′:5′,2″:5″,2′″-quaterthiophene (DHCO-4T), 5, 5′″-diperfluorohexylcarbonyl-2,2′:5′,2″:5″,2′″-quaterthiophene (DFHCO-4T), and 2,7-[bis-(5-perfluorohexylcarbonylthien-2-yl)]-4H-cyclopenta[2,1-b:3,4-b′]-dithiophen-4-one (DFHCO-4TCO) have been synthesized and characterized. Field-effect transistors fabricated with these materials exhibit high electron mobilities both in a vacuum (up to 0.6 cm2 V-1 s-1) and in air (up to 0.02 cm2 V-1 s-1) and very high Ion:Ioff currents ratios (>107). DHCO-4T is the first organic material exhibiting excellent ambipolar transport (μe/μh up to 0.1/0.01 cm2 V-1 s-1, (Ion:Ioff)e/(Ion:Ioff)h up to 107/108 for the same device) over a broad range of deposition temperatures. These materials are therefore promising for organic complementary circuits.",

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