کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1441574 | 1509437 | 2010 | 5 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: 2,9-Dibromopentacene: Synthesis and the role of substituent and symmetry on solid-state order 2,9-Dibromopentacene: Synthesis and the role of substituent and symmetry on solid-state order](/preview/png/1441574.png)
We have developed an effective synthetic route for 2,9-dibromopentacene, opening up new possibilities for future derivatization of pentacene. We also present the fundamental properties. Thin-film and single-crystal field-effect transistor results demonstrate a decrease in apparent charge transport efficiency with decreasing symmetry. The trend in symmetry was further correlated to single-crystal structural analysis, which implied that reduction in symmetry also reduced solid-state order. It is likely that this reduction in order is responsible for the diminished performance in the solid-state films and crystal, despite a reduction in overall tilt angle of the molecules relative to one another. Combined with previous studies, this work provides a more complete perspective on the interplay of symmetry, energetic, and intermolecular interactions in the macroscopic properties of solid-state organic electronic materials.
Journal: Synthetic Metals - Volume 160, Issues 23–24, December 2010, Pages 2447–2451