Chemistry Letters
Online ISSN : 1348-0715
Print ISSN : 0366-7022
Letter
Unique Molecular Arrangement in Semiconducting Layer and FET Characteristics of Thin Film Transistors Based on 2,6-Dialkylbenzo[1,2-b:4,5-b′]diselenophenes (Cn-BDSs)
Shoji ShinamuraTomoya KashikiTakafumi IzawaEigo MiyazakiKazuo Takimiya
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2009 Volume 38 Issue 4 Pages 352-353

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Abstract

2,6-Dialkylbenzo[1,2-b:4,5-b′]diselenophenes developed as soluble organic semiconductors gave a unique molecular arrangement in bulk single crystals, where π-stacking dimeric pairs and monomeric molecules are arranged in a similar manner to herringbone packing. Such unique structure was preserved in thin films on Si/SiO2 substrate, and the thin films fabricated by solution- or vapor-deposition acted as an active channel of field-effect transistors with mobility up to 8.4×10−2 cm2 V−1 s−1 for solution- and 2.3×10−1 cm2 V−1 s−1 for vapor-processed devices, respectively.

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© 2009 The Chemical Society of Japan
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