Synthesis and Characterization of a Pyromellitic Diimide-Based Polymer with C- and N-Main Chain Links: Matrix for Solution-Processable n-Channel Field-Effect Transistors

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• 作者：Srinivas Kola ; Noah J. Tremblay ; Ming-Ling Yeh ; Howard E. Katz ; Stuart B. Kirschner ; Daniel H. Reich
• 刊名：ACS Macro Letters
• 出版年：2012
• 出版时间：January 17, 2012
• 年：2012
• 卷：1
• 期：1
• 页码：136-140
• 全文大小：378K
• 年卷期：v.1,no.1(January 17, 2012)
• ISSN：2161-1653

文摘

A highly soluble pyromellitic diimide-based polymer was obtained through imidization polymerization. The novel architecture features diimide subunits linked alternately at 3,6 and N,N鈥?positions. The polymer is highly transparent in the near-ultraviolet鈥搗isible regions. Smooth and uniform thin-films were obtained through spin-coating even after blending the polymer with PCBM in 1:9 polymer/PCBM weight ratio. While the polymer itself has modest electron mobility in typical bottom-gate top-contact OFETs, an electron mobility of 3 脳 10^鈥? cm² V^鈥? s^鈥? was achieved for the blend, which increased to 10^鈥? cm² V^鈥? s^鈥? on exposure to propylamine. Thus, polyimides are demonstrated as promising binder materials for solution-processable n-channel semiconductor blends, of which very few examples are known.