Structurally Defined Graphene Nanoribbons with High Lateral Extension

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• 作者：Matthias Georg Schwab ; Akimitsu Narita ; Yenny Hernandez ; Tatyana Balandina ; Kunal S. Mali ; Steven De Feyter ; Xinliang Feng ; Klaus M眉llen
• 刊名：The Journal of the American Chemical Society
• 出版年：2012
• 出版时间：November 7, 2012
• 年：2012
• 卷：134
• 期：44
• 页码：18169-18172
• 全文大小：334K
• 年卷期：v.134,no.44(November 7, 2012)
• ISSN：1520-5126

文摘

Oxidative cyclodehydrogenation of laterally extended polyphenylene precursor allowed bottom-up synthesis of structurally defined graphene nanoribbons (GNRs) with unprecedented width. The efficiency of the cyclodehydrogenation was validated by means of MALDI-TOF MS, FT-IR, Raman, and UV鈥搗is absorption spectroscopies as well as investigation of a representative model system. The produced GNRs demonstrated broad absorption extended to near-infrared region with the optical band gap of as low as 1.12 eV.