3Chen F, Tao N. J. Acc. Chem. Res., 2009, 42: 429.
4Dreyer D R, Ruoff R S, Bielawski C W. Angew. Chem. Int. Ed., 2010, 49: 9336.
5Chen Y, Zhang B, Liu G, Zhuang X D, Kang E T. Chem. Soc. Rev., 2012, 41: 4688.
6Ritter K A, Lyding J W. Nanotechnology, 2008, 19: 015704.
7Berger C, Song Z, Li X, Wu X, Brown N, Naud C, Mayou D, Li T, Hass J, Marchenkov A N, Conrad E H, First P N, de Heer W A. Science, 2006, 312: 1191.
8Ohta T, Bostwick A, Seyller T, Horn K, Rotenberg E. Science, 2006, 313: 951.
9de Heer W A, Berger C, Wu X, First P N, Conrad E H, Li X, Li T, Sprinkle M, Hass J, Sadowski M L, Potemski M, Martinez G. Solid State Commun., 2007, 143: 92.
10Sutter P W, Flege J I, Sutter E A. Nat. Mater., 2008, 7: 406.
