Multiply Folded Graphene

التفاصيل البيبلوغرافية
العنوان: Multiply Folded Graphene
المؤلفون: Kim, Kwanpyo, Lee, Zonghoon, Malone, Brad, Chan, Kevin T., Alemán, Benjamín, Regan, William, Gannett, Will, Crommie, M. F., Cohen, Marvin. L., Zettl, A.
المصدر: Phys. Rev. B 83, 245433 (2011)
سنة النشر: 2010
المجموعة: Condensed Matter
مصطلحات موضوعية: Condensed Matter - Mesoscale and Nanoscale Physics
الوصف: The folding of paper, hide, and woven fabric has been used for millennia to achieve enhanced articulation, curvature, and visual appeal for intrinsically flat, two-dimensional materials. For graphene, an ideal two-dimensional material, folding may transform it to complex shapes with new and distinct properties. Here, we present experimental results that folded structures in graphene, termed grafold, exist, and their formations can be controlled by introducing anisotropic surface curvature during graphene synthesis or transfer processes. Using pseudopotential-density functional theory calculations, we also show that double folding modifies the electronic band structure of graphene. Furthermore, we demonstrate the intercalation of C60 into the grafolds. Intercalation or functionalization of the chemically reactive folds further expands grafold's mechanical, chemical, optical, and electronic diversity.
Comment: 29 pages, 10 figures (accepted in Phys. Rev. B)
نوع الوثيقة: Working Paper
DOI: 10.1103/PhysRevB.83.245433
URL الوصول: http://arxiv.org/abs/1012.5426
رقم الأكسشن: edsarx.1012.5426
قاعدة البيانات: arXiv
الوصف
DOI:10.1103/PhysRevB.83.245433