Synthesis and Hole-Transporting Properties of Highly Fluorescent N-Aryl Dithieno[3,2-b:2′,3′-d]pyrrole-Based Oligomers

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• 作者：Ganapathy Balaji ; Manoj Parameswaran ; Tan Mein Jin ; Chellappan Vijila ; Zhu Furong ; Suresh Valiyaveettil
• 刊名：Journal of Physical Chemistry C
• 出版年：2010
• 出版时间：March 18, 2010
• 年：2010
• 卷：114
• 期：10
• 页码：4628-4635
• 全文大小：426K
• 年卷期：v.114,no.10(March 18, 2010)
• ISSN：1932-7455

文摘

A new series of dithieno[3,2-b:2′,3′-d]pyrrole-incorporated oligomers was synthesized and characterized. The crystal structure, crystal packing, optical properties, electrochemical properties, and time-of-flight mobilities were investigated in detail. The oligomers are highly fluorescent in both solution and the solid state. The solution-state quantum yield of these new compounds ranged from 52 to 75%. Band gaps of these oligomers were found to be in the range of 2.5−2.8 eV. The surface morphology of the film was also characterized by atomic force microscopy. The material was found to be hole-transporting with a mobility on the order of 10⁻⁶ cm²/(V s).