Observations of PDDTT Subject to Thermal Treatment: Correlation between Performance and Order

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• 作者：Jonathan D. Yuen ; Rajeev Kumar ; Jason Seifter ; Sebastian Valouch ; Dante Zakhidov ; Daniel Moses ; Uli Lemmer ; Alan J. Heeger ; Fred Wudl
• 刊名：Journal of the American Chemical Society
• 出版年：2011
• 出版时间：December 14, 2011
• 年：2011
• 卷：133
• 期：49
• 页码：19602-19605
• 全文大小：810K
• 年卷期：v.133,no.49(December 14, 2011)
• ISSN：1520-5126

文摘

We show that polybis(thienyl)thienodia-thiazolethiophene (PDDTT), a high-performance semiconducting polymer for photodetectors and field-effect transistors, has strong performance dependence on annealing temperature. An unprecedented increase of 3 orders of magnitude is observed in both transistor and photoconductive properties. XRD and AFM evidence points to increased ordering in PDDTT films with annealing. This correlation highlights the importance that order has in determining performance in PDDTT and has possible implications in the design of polymers.