کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7852370 | 1508866 | 2015 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Graphene nanoribbons formed by a sonochemical graphene unzipping using flavin mononucleotide as a template
ترجمه فارسی عنوان
گرافن نانوروبن گرافن با استفاده از یک گرافن سونوشیمیایی با استفاده از فونوون مونونوکلئوتید به عنوان یک الگو
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی (عمومی)
چکیده انگلیسی
When the width of a graphene nanoribbon (GNR) is only a few nanometers, it possesses semiconducting properties that enable various high-end electronic applications. In this study, we report that the dense and stable dispersion of a natural graphite formed using flavin mononucleotide (FMN) as a surfactant produces GNRs as small as 10Â nm in width. High-resolution transmission electron microscopy reveals GNRs with various widths, along with a graphene flake containing straight-edged GNRs and cuts, depending on substrate treatments. Such nanoribbon formation originates from sonochemical graphene unzipping with a one-dimensional FMN supramolecular ribbon as a template. Raman spectroscopy demonstrates the universal intensity ratio of D over Dâ² bands near 4, supporting formation of continuous edge defect. Thermal annealing enhances the optical contrast and van der Waals interactions of the graphene film, resulting in increased conductivity compared to the as-prepared graphene film, which is also better than that of reduced graphene oxide.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbon - Volume 81, January 2015, Pages 629-638
Journal: Carbon - Volume 81, January 2015, Pages 629-638
نویسندگان
Woojin Yoon, Yonggeun Lee, Hongje Jang, Myungsu Jang, Jin Sung Kim, Hee Sung Lee, Seongil Im, Doo Wan Boo, Jiwoong Park, Sang-Yong Ju,