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Two kinds of gold nanoparticles with different surface-capping groups (Au-DT and Au-DT-CTAB), 1-dodecanthiol and cetyltrimethylammonium bromide (CTAB) are prepared by a two-phase method. Structures and linear optical properties of the materials are characterized using transmission electron microscopy and ultraviolet--visible absorption spectroscopy. The effects of surface modification on nonlinear optical (NLO) performance and optical limiting behavior of gold nanoparticles are investigated using the openZ-scan technique at a laser wavelength of 532 nm. The results show that Au-DT-CTAB shows an enhanced NLO effect in comparison with Au-DT. The secondary modification with CTAB can not only improve local field enhancement effect but also make the contribution of thermoelectrons to NLO performance of gold nanoparticles on laser irradiation.
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Keywords:
- gold nanoparticles /
- surface modification /
- Z-scan measurement
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[16] Sheik-Bahae M, Said A A, Wei T H, Hagan D J, van Stryland EW 1990 IEEE J. Quantum Electron 26 760
[17] Qu S L, Gao Y C, Jiang XW, Zeng H D, Song Y L, Qiu H R, ZhuC S, Hirao K 2003 Opt. Commun. 224 321
[18] Qu S L, Zhao C J, Gao Y C, Song Y L, Liu S T, Qiu J R, Zhu C S2005 Acta Phys. Sin. 54 139 (in Chinese) [曲士良, 赵崇军, 高亚臣, 宋瑛林, 刘树田, 邱建荣, 朱从善2005 物理学报 54 139]
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[1] Zhan C L, Li D H, Zhang D Q, Xu W, Nie Y X, Zhu D B 2004Opt. Mater. 26 11
[2] Wang P, Lu Y H, Tang L, Zhang J Y, Ming H, Xie J P, Ho F H,Chang H H, Lin H Y, Tsai D P 2004 Opt. Commun. 229 425
[3] Shen H, Cheng B L, Lu G W, Guan D Y, Chen Z H, Yang G Z2006 J. Phys. D Appl. Phys. 39 233
[4] Wang K, Long H, Fu M, Zhang L C, Yang G, Lu P X 2011 ActaPhys. Sin. 60 034209 (in Chinese) [王凯, 龙华, 付明, 张莉超, 杨光, 陆培祥 2011 物理学报 60 034209]
[5] Qu S L, Zhao C J, Jiang XW, Fang G Y, Gao Y C, Zeng H D, SongY L, Qiu J R, Zhu C S, Hirao K 2003 Chem. Phys. Lett. 368 352
[6] Wang K, Yang G, Long H, Li Y H, Dai N L, Lu P X 2008 ActaPhys. Sin. 57 3862 (in Chinese) [[王凯,杨光, 龙华, 李玉华, 戴能利, 陆培祥 2008 物理学报 57 3862]
[7] Wang J, Blau W J 2009 Opt. A Pure Appl. Opt. 11 024001
[8] WuWZ, Zheng Z R, Jin Q H, Yan Y X, LiuWL, Zhang J P, YangY Q, Su W H 2008 Acta Phys. Sin. 57 1177 (in Chinese) [吴文智, 郑植仁, 金钦汉, 闫玉禧, 刘伟龙,张建平, 杨延强, 苏文辉 2008 物理学报 57 1177]
[9] Su W Y, Fu X Z, Wei K M 2001 Acta Phys. -Chim. Sin. 17 28 (inChinese) [苏文悦, 付贤智,魏可镁 2001 物理化学学报 17 28]
[10] Fan H Y, Yang K, Boye D M, Sigmon T, Malloy K J, Xu H F,L?opez G P, Brinker C J 2004 Science 304 567
[11] West R, Wang Y, Goodson T 2003 J. Phys. Chem. B 107 3419
[12] Sun W F, Dai Q, Worden J G, Huo Q 2005 J. Phys. Chem. B 10920854
[13] Gao L Z, Zhang X T, Dai S X, Li Y C, Huang Y B, Du Z L, Li TJ 2006 Acta Phys. -Chim. Sin. 20 647 (in Chinese) [高丽珍, 张兴堂, 戴树玺, 李蕴才, 黄亚彬, 杜祖亮, 李铁津 2006物理化学学报 20 647 ]
[14] Brust M, Walker M, Bethell D, Schiffrin D J, Whyman R 1994 J.Chem. Soc. Chem. Commun. 7 801
[15] Fan H Y, Wright A, Gabaldon J, Rodriguez A, Brinker C J, JiangY B 2006 Adv. Funct. Mater. 16 891
[16] Sheik-Bahae M, Said A A, Wei T H, Hagan D J, van Stryland EW 1990 IEEE J. Quantum Electron 26 760
[17] Qu S L, Gao Y C, Jiang XW, Zeng H D, Song Y L, Qiu H R, ZhuC S, Hirao K 2003 Opt. Commun. 224 321
[18] Qu S L, Zhao C J, Gao Y C, Song Y L, Liu S T, Qiu J R, Zhu C S2005 Acta Phys. Sin. 54 139 (in Chinese) [曲士良, 赵崇军, 高亚臣, 宋瑛林, 刘树田, 邱建荣, 朱从善2005 物理学报 54 139]
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