Polymeric OTFT materials containing anthracene derivatives

Abstract

Organic semiconducting molecules were very attractive for the fabrication of organic thin film transistors (OTFT) in various molecular electronics applications, such as flexible display, smart card, RF tag, and electronic paper. As we know, poly(3- hexylthiophene) and anthracene exhibit a high charge-carrier mobility, and the alkyl chains on the anthracene moiety can help promote self-organization. On the other hand, fluorene has a number of advantages, such as the thermal and chemical stability. Thus, we have selected anthracene and 3-alkylthiophene or dialkylfluorene to synthesis polymers, expecting to be used in organic thin film transistor (OTFT) and achieve high mobility. The polymers were confirmed by FT-IR, 1H-NMR. The physical and optical properties of the polymers were characterized by differential scanning calorimetry (DSC), cyclic voltammetry (CV), and optical absorption and photoluminescence (PL) spectroscopy. The OTFT will be fabricated and discussed further. Copyright © 2007 Materials Research Society.