[1] Pei S F, Cheng H M. Carbon, 2012, 50: 3210.

[2] Eda G, Lin Y Y, Mattevi C, et al. Adv. Mater., 2010, 22: 505.

[3] Lu Z, Guo C X, Yang H B, et al. J. Colloid Interface Sci., 2011, 353: 588.

[5] Zhu S J, Tang S J, Zhang J H, et al. Chem. Commun., 2012, 48: 4527.

[7] Wang Y, Yao H B, Wang X H, et al. J. Mater. Chem., 2011, 21: 562.

[8] Wei W, He T C, Teng X, et al. Small, 2012, 8: 2271.

[9] Xiong L, Yang T, Yang Y, et al. Biomaterial, 2010, 31: 7078.

[10] Chen S, Wang S W, Zhang J, et al. J. Nanosci. Nanotechnol., 2009, 9: 1942.

[12] Masia M, Forbert H, Marx D. J. Phys. Chem. A, 2007, 111: 12181.

[13] Narula R, Reich S. Phys. Rev. B, 2008, 78: 165422.

[14] Pollnau M, Gamelin D R, Luthi S R, et al. Phys. Rev. B, 2001, 61: 3337.

[15] Lim G K, Chen Z L, Clark J, et al. Nat. Photonics, 2011, 5: 554.

[16] Nair R R, Blake P, Grigorenko A N, et al. Science, 2008, 320: 1308.