Synthesis, Properties, and n‐Type Transistor Characteristics of π‐Conjugated Compounds Having a Carbonyl‐Bridged Thiazole‐Fused Polycyclic System. Issue 50 (14th October 2014)

• Record Type: Journal Article
• Authors: Ie, Yutaka; Sato, Chihiro; Nitani, Masashi; Tada, Hirokazu; Aso, Yoshio
• Is Part Of: Chemistry. Volume 20:Issue 50(2014)
• Page Start: 16509
• Page End: 16515
• Publication Date: 2014-10-14
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1002/chem.201404255
• Languages: English
• ISSNs: 0947-6539

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>A series of electron‐deficient π‐conjugated systems with 4, 9‐dihydro‐<italic>s</italic>‐indaceno[2, 1‐<italic>d</italic>:6, 5‐<italic>d′</italic>]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 cm² 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.</p> </abstract>