تقرير
Macroscopic graphene membranes and their extraordinary stiffness
| العنوان: | Macroscopic graphene membranes and their extraordinary stiffness |
|---|---|
| المؤلفون: | Booth, T. J., Blake, P., Nair, R. R., Jiang, D., Hill, E. W., Bangert, U., Bleloch, A., Gass, M., Novoselov, K. S., Katsnelson, M. I., Geim, A. K. |
| المصدر: | Nano Letters 2008 8 (8) 2442 |
| سنة النشر: | 2008 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Mesoscale and Nanoscale Physics, Condensed Matter - Materials Science |
| الوصف: | The properties of suspended graphene are currently attracting enormous interest, but the small size of available samples and the difficulties in making them severely restrict the number of experimental techniques that can be used to study the optical, mechanical, electronic, thermal and other characteristics of this one-atom-thick material. Here we describe a new and highly-reliable approach for making graphene membranes of a macroscopic size (currently up to 100 microns in diameter) and their characterization by transmission electron microscopy. In particular, we have found that long graphene beams supported by one side only do not scroll or fold, in striking contrast to the current perception of graphene as a supple thin fabric, but demonstrate sufficient stiffness to support extremely large loads, millions of times exceeding their own weight, in agreement with the presented theory. Our work opens many avenues for studying suspended graphene and using it in various micromechanical systems and electron microscopy. Comment: 10 pages, 4 figures. Accepted for Nano Letters. v4 includes corrections to theory, updated references, corrected typos |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1021/nl801412y |
| URL الوصول: | http://arxiv.org/abs/0805.1884 |
| رقم الأكسشن: | edsarx.0805.1884 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1021/nl801412y |
|---|