[1] Han X X,Weidinger I M,Hildebrandt P,et al.ACS Nano,2013,7:3212.

[2] Song W,Mao Z,Liu X J,et al.Nanoscale,2011,4:2333.

[3] Mao Z,Song W,Chen L,et al.J.Phys.Chem.C,2011,115(37):18378.

[4] Xu H,Bjerneld E,Kall M,et al.Phys.Rev.Lett.,1999,83:4357.

[5] Lierop D,Larmour L,Faulds K,et al.Anal.Chem.,2013,85(3):1408.

[6] Xu H.Phys.Rev.B,2005,72:073405.

[7] Ji W,Xue X,Ruan W,et al.Chem.Commun.,2011,47:2426.

[8] Chen L,Yu Z,Lee Y,et al.Analyst,2012,137:5834.

[9] Lu X F,Wang C,Wei Y.Small,2009,5:2349.

[10] Greiner A,Wendorff J H.Angew.Chem.Int.Ed.,2007,46:5670.

[11] Huang Z M,Zhang Y Z,Kotaki M,et al.Composites Sci.Technol.,2003,63:2223.

[12] Li D,Xia Y N.Adv.Mater.,2004,16:1151.

[13] Osawa M,Matsuda N,Yoshii K,et al.J.Phys.Chem.,1994,98:12702.