Synthesis and Electrical Properties of Derivatives of 1,4-bis(trialkylsilylethynyl)benzo[2,3-b:5,6-b′]diindolizines
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- 作者：Devin B. Granger ; Yaochuan Mei ; Karl J. Thorley ; Sean R. Parkin ; Oana D. Jurchescu ; John E. Anthony
- 刊名：Organic Letters
- 出版年：2016
- 出版时间：December 2, 2016
- 年：2016
- 卷：18
- 期：23
- 页码：6050-6053
- 全文大小：368K
- ISSN：1523-7052
文摘
A new class of nitrogen-containing arene organic semiconductors incorporating fused indolizine units is described. This system, though having a zigzag shape, mimics the electronic properties of its linear analogue pentacene as a result of nitrogen lone pair incorporation into the π-electron system. Solubilizing trialkylsilylethynyl groups were employed to target crystal packing motifs appropriate for field-effect transistor devices. The triethylsilylethynyl derivative yielded hole mobilities of 0.1 cm2 V–1 s–1 and on/off current ratios of 105.