Synthesis and Properties of <i>α</i>,<i>ω</i>-Disubstituted Oligo(3-hexylthiophene)s and Oligothienoquinonoids in Head-to-head Orientation

Higuchi, Hiroyoshi; Nakayama, Taketoshi; Koyama, Haruki; Ojima, J.; Wada, Takehiko; Sasabe, Hiroyuki

doi:10.1246/bcsj.68.2363

Cited by 88 publications

(59 citation statements)

References 18 publications

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“…[ 31 ] OFETs were fabricated on highly doped n-type silicon wafers with a thermally grown 300 nm thick SiO 2 layer. After cleaning, the SiO 2 surface was treated by octadecyltrichlorosilane (OTS).…”

Section: Methodsmentioning

confidence: 99%

Reversible Conversion of the Majority Carrier Type in Solution‐Processed Ambipolar Quinoidal Oligothiophene Thin Films

et al. 2010

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Section: Methodsmentioning

confidence: 99%

Reversible Conversion of the Majority Carrier Type in Solution‐Processed Ambipolar Quinoidal Oligothiophene Thin Films

et al. 2010

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“…122 ± 125 8C/ 10 À3 mbar, yield 71 %), 3-hexyl-2-bromothiophene [27] (b.p. 137 8C/18 mbar, yield 70 %), 3-propyl-2-bromothiophene [28] (b.p.…”

Section: Methodsmentioning

confidence: 99%

Coincidence of the Molecular Organization ofβ-Substituted Oligothiophenes in Two-Dimensional Layers and Three-Dimensional Crystals

et al. 2000

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The molecular arrangements of three different alkyl-substituted oligothiophenes both in two-dimensional adsorbed layers at a substrate interface and in bulk three-dimensional crystals were studied. Scanning tunneling microscopy (STM) was used to investigate the ordering of the conjugated oligomers in two-dimensional layers adsorbed on graphite. These data were compared with the X-ray structure determinations of single crystals revealing the arrangement in the three-dimensional bulk material. Quaterthiophenes 1 and 2, bearing dodecyl and hexyl side chains, respectively, exhibit a lamella-type stacking of the conjugated backbone concomitant with an interlocking of the alkyl side chains both on the surface and in the crystal. In contrast, the arrangement of propyl-substituted quaterthiophene 3 is rather "herringbone-like" due to the reduced interactions of the shorter alkyl side chains. In all three cases, evidently, the two-dimensional ordering at the graphite surface is coincident with the molecular packing in one cross-section of the three-dimensional crystal.

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“…13 OFETs were fabricated using n-type silicon wafers with a thermally grown 300 nm thick SiO 2 layer as substrates. The SiO 2 surface was modified with a selfassembled monolayer of octadecyltrichlorosilane ͑OTS͒.…”

mentioning

confidence: 99%

Majority carrier type conversion in solution-processed organic transistors and flexible complementary logic circuits

Ribierre

Watanabe

Matsumoto

et al. 2010

Applied Physics Letters

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We report on the realization of high performance solution-processed ambipolar organic transistors based on a quinoidal oligothiophene derivative. The devices show hole and electron field-effect mobilities in air as high as 0.1 and 0.006 cm2 V−1 s−1, respectively, and can be converted from ambipolar p-type dominant to n-type transistors by thermal annealing. The conversion of the majority carrier type is assigned to strong variations in molecular packing. The demonstration of complementary flexible inverters suggests an effective strategy for patterning lateral pn-bipolar structures in solution-processed thin films made from a monolithic ambipolar organic semiconductor.

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Synthesis and Properties of α,ω-Disubstituted Oligo(3-hexylthiophene)s and Oligothienoquinonoids in Head-to-head Orientation

Cited by 88 publications

References 18 publications

Reversible Conversion of the Majority Carrier Type in Solution‐Processed Ambipolar Quinoidal Oligothiophene Thin Films

Reversible Conversion of the Majority Carrier Type in Solution‐Processed Ambipolar Quinoidal Oligothiophene Thin Films

Coincidence of the Molecular Organization ofβ-Substituted Oligothiophenes in Two-Dimensional Layers and Three-Dimensional Crystals

Majority carrier type conversion in solution-processed organic transistors and flexible complementary logic circuits

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