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Synthesis, properties, and n-type transistor characteristics of π-conjugated compounds having a carbonyl-bridged thiazole-fused polycyclic system.

Authors
Type
Published Article
Journal
Chemistry - A European Journal
0947-6539
Publisher
Wiley Blackwell (John Wiley & Sons)
Publication Date
Volume
20
Issue
50
Pages
16509–16515
Identifiers
DOI: 10.1002/chem.201404255
PMID: 25314152
Source
Medline
Keywords
  • Charge Transfer
  • Electron Transport
  • Semiconductors
  • Structure-Activity Relationships
  • Thin Films

Abstract

A series of electron-deficient π-conjugated systems with 4,9-dihydro-s-indaceno[2,1-d:6,5-d']dithiazole-4,9-dione-based structures and fluorinated acyl groups as the terminal units have been designed and synthesized for application as organic field-effect transistor (OFET) materials. The thermal, photophysical, and electrochemical properties and OFET performance of the synthesized compounds were investigated. OFET evaluation revealed that all compounds exhibited typical electron-transporting characteristics, and electron mobilities up to 0.26 cm(2)  V(-1)  s(-1) could be achieved. The air stabilities of OFET operation were dependent on the nature of the compounds and were investigated by X-ray diffraction and atomic force microscopy. The terminal units had a great influence not only on the molecular properties, but also on the film-forming properties and OFET performance.

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