摘要Silver nanoparticles with an average size of about 20nm are synthesized in a colloidal solution with the aid of microwave irradiation. Neither additional reductant nor stabilizer is required in this microwave-assisted method. The color of the colloidal solution is found to be dark green, different from the characteristic yellow of silver colloidal solutions. The silver nanoparticles in the colloidal solution have a narrow size distribution and large yield quantity. UV-visible absorption spectroscopy analysis reveals that the as-synthesized monodisperse silver nanoparticles have exceptional optical properties. Raman spectroscopy measurements demonstrate that these silver nanoparticles exhibit a notable surface-enhanced Raman scattering ability.
Abstract：Silver nanoparticles with an average size of about 20nm are synthesized in a colloidal solution with the aid of microwave irradiation. Neither additional reductant nor stabilizer is required in this microwave-assisted method. The color of the colloidal solution is found to be dark green, different from the characteristic yellow of silver colloidal solutions. The silver nanoparticles in the colloidal solution have a narrow size distribution and large yield quantity. UV-visible absorption spectroscopy analysis reveals that the as-synthesized monodisperse silver nanoparticles have exceptional optical properties. Raman spectroscopy measurements demonstrate that these silver nanoparticles exhibit a notable surface-enhanced Raman scattering ability.
[1] Maier S A et al 2001 Adv. Mater. 13 1501 [2] Deng Z et al 2007 J. Phys. Chem. C 111 11692 [3] Xie Z G et al 2008 Chin. Phys. Lett. 25 4473 [4] Kim Y H et al 2007 J. Phys. Chem. C 111 3629 [5] Bian F et al 2008 Chin. Phys. Lett. 25 4463 [6] Jin R et al 2003 Nature 425 487 [7] Sun Y and Xia Y 2002 Science 298 2176 [8] Li C et al 2007 Angew. Chem. Int. Ed. 463264 [9] Xiong Y et al 2007 J. Am. Chem. Soc. 129 3665 [10] Tsuji M et al 2005 Chem. Eur. J. 11 440 [11] Grace A N et al 2007 Mater. Chem. Phys. 104191 [12] Nadagouda M N et al 2008 Cryst. Growth. Des. 8 291 [13] Zhu J and Zhu Y 2006 J. Phys. Chem. B 1108593 [14] Gou L et al 2007 Chem. Mater. 19 1755 [15] Mallikarjuna N N et al 2007 Cryst. Growth Des. 7 686 [16] Xiong Y et al 2006 Langmuir 22 8563 [17] Jin R et al 2001 Science 294 1901 [18] Pol V G et al 2002 Langmuir 18 3352 [19] S\'{anchez-Iglesias A et al 2006 Adv. Mater. 18 2529 [20] Wiley B J et al 2007 Nano Lett. 7 1032 [21] Zhou Q et al 2008 J. Phys. D: Appl. Phys. 41 152007 [22] Wang G, Ye F, Chao C, Zuo J and Fang R 1999 Chin. J.Light Scattering 11 142 (in Chinese) [23] Ma W, Wu H and Fang Y 2005 Chin. J. LightScattering 17 58 (in Chinese) [24] Zhang J et al 2005 J. Phys. Chem. B 10912544 [25] Zhu H, Fang Y, Wei F, Yu Y, Zhu K and Zhang P 1994 Spectrosc. Spectral Anal. 14 19 (in Chinese) [26] Chu Y et al 2008 Appl. Phys. Lett. 93181108 [27] Mayer A B R et al 2000 J. Phys. Chem. B 1047278 [28] Bright R M et al 1998 Langmuir 14 5695
2009, Vol. 26 
