Soluble terthiophene-labeled cruciform molecule as a semiconductor for organic field-effect transistor

Kyung Hwan Kim, Zhenguo Chi, Min Ju Cho, Jung Il Jin, Mi Yeon Cho, Su Jin Kim, Jinsoo Joo, Dong Hoon Choi

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Cruciform conjugated molecule, 4(HP3T)-benzene bearing terthiophene moieties has been synthesized through Heck coupling reaction using 5-hexyl-5″-vinyl-[2,2′,5′,2″]terthiophene as dendrons and 1,2,4,5-tetrabromo-benzene as the core unit; this molecule has been fully characterized. This terthiophene-based molecule exhibits good solubility in common organic solvents and good self-film forming property. They are intrinsically crystalline as they exhibit well-defined X-ray diffraction patterns from uniform orientations of molecules. Thus, intermolecular interaction can be enhanced to affect the carrier transport phenomena after annealing at 160 °C. The semiconducting property of 4(HP3T)-benzene has been evaluated in organic field-effect transistors. 4(HP3T)-benzene exhibit carrier mobility as high as (3.7 ± 0.5) × 10-4 cm2 V-1 s-1 with an on/off ratio of about 1 × 103.

Original languageEnglish
Pages (from-to)497-501
Number of pages5
JournalSynthetic Metals
Volume157
Issue number13-15
DOIs
Publication statusPublished - 2007 Jul 1

Fingerprint

Organic field effect transistors
Benzene
field effect transistors
benzene
Semiconductor materials
Molecules
molecules
Bearings (structural)
Dendrimers
Carrier transport
Carrier mobility
carrier mobility
Organic solvents
Diffraction patterns
diffraction patterns
solubility
Solubility
Annealing
Crystalline materials
X ray diffraction

Keywords

  • Cruciform molecule
  • Mobility
  • Organic field-effect transistor
  • Organic semiconductor

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Materials Chemistry
  • Polymers and Plastics

Cite this

Soluble terthiophene-labeled cruciform molecule as a semiconductor for organic field-effect transistor. / Kim, Kyung Hwan; Chi, Zhenguo; Cho, Min Ju; Jin, Jung Il; Cho, Mi Yeon; Kim, Su Jin; Joo, Jinsoo; Choi, Dong Hoon.

In: Synthetic Metals, Vol. 157, No. 13-15, 01.07.2007, p. 497-501.

Research output: Contribution to journalArticle

Kim, Kyung Hwan ; Chi, Zhenguo ; Cho, Min Ju ; Jin, Jung Il ; Cho, Mi Yeon ; Kim, Su Jin ; Joo, Jinsoo ; Choi, Dong Hoon. / Soluble terthiophene-labeled cruciform molecule as a semiconductor for organic field-effect transistor. In: Synthetic Metals. 2007 ; Vol. 157, No. 13-15. pp. 497-501.
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