Novel soluble pentacene and anthradithiophene derivatives for organic thin-film transistors

详细信息    查看全文

• 作者：Choongik Kim ; Peng-Yi Huang ; Jhe-Wei Jhuang ; Ming-Chou Chen ; Jia-Chong Ho ; Tarng-Shiang Hu ; Jing-Yi Yan ; Liang-Hsiang Chen ; Gene-Hsiang Lee ; Antonio Facchetti ; Tobin J. Marks
• 关键词：Organic thin-film transistor ; Organic semiconductor ; Solution-process ; Pentacene ; Anthradithiophene
• 刊名：Organic Electronics
• 出版年：2010
• 出版时间：August 2010
• 年：2010
• 卷：11
• 期：8
• 页码：1363-1375
• 全文大小：1975 K

文摘

Four new solution-processable pentacene- (PEN) and anthradithiophene- (ADT) based organic semiconductors bearing two phenylethynyl (PE-) or triethylsilylphenylethynyl (TESPE-) substituents have been synthesized, characterized, and incorporated in thin-film transistors (TFTs). The molecular structures of these four materials have been determined by single-crystal X-ray diffraction. Thin films of all four compounds have been fabricated via drop-casting and exhibited p-channel OTFT transport with hole mobilities as high as 0.01 cm²/V s. Compared to PEN derivatives, ADT-based compounds exhibited superior device performance and photooxidative stability in ambient. The film morphologies and microstructures of these compounds have been characterized by optical microscopy and X-ray diffraction to rationalize device performance trends.