Abstract
This paper reports a systematic investigation of the growth and attachment of small gold nanoparticles to the functionalized surface of larger silica nanoparticles by three different methods. Nearly monodispersed silica particles and gold nanoparticles were prepared by sol-gel method. The size of the particle could be altered by changing the concentration of reactants, temperature and the time for which they react. The nanocoreshell particles prepared by three different methods were studied using scanning electron microscopy (SEM), UV-vis spectroscopy and Fourier transform infrared spectroscopy. We have found that the third method (c), a combination of the first two methods (a) and (b), has given better results.
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A P Alivisatos, J. Phys. Chem. 100, 13226 (1996)
L M Liz-Marzan, M A Correa-Duarte, I Pastoriza-Santos, P Mulvaney, T Ung, M Giersig and N A Kotov, Handbook of surfaces and interfaces of materials edited by H S Nalwa (Academic Press, 2001), vol. 3, Chapter 5, p. 189
F Hache, D Richard, C Flytzanis and U Kribig, Appl. Phys. 47, 347 (1988)
J Y Bigot, J C Merle, O Cregut and A Daunois, Phys. Rev. Lett. 75, 4702 (1995)
M Perener, P Bost, U Lemmer, G Von Plessem, J Feldmann, U Becker, M Menig, M Schmitt and H Schmidt, Phys. Rev. Lett. 78, 2192 (1997)
S L Westcott, S J Oldenburg, T R Lee and N J Halas, Langmuir 14, 5396 (1998)
A Moroz, Europhys. Lett. 50, 466 (2000)
A Moroz, Phys. Rev. Lett. 83, 5274 (1999)
W Y Zhang, X Y Lei, Z L Wang, D G Zheng, W Y Tam, C T Chang and P Sheng, Phys. Rev. Lett. 84, 2853 (2000)
W Stober, A Fink and E Bohn, J. Coll. Int. Sci. 62, 26 (1968)
J Turkenvich, P C Stevenson and J Hillier, Discuss. Faraday Soc. 11, 55 (1951)
C Graf and A V Blaaderen, Langmuir 18, 524 (2002)
S J Oldenburg, D Averitt, S L Westcott and N J Halas, Chem. Phys. Lett. 288, 243 (1998)
S J Oldenburg, J B Jackson, S L Westcott and N J Halas, Appl. Phys. Lett. 75, 2897 (1999)
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Kandpal, D., Kalele, S. & Kulkarni, S.K. Synthesis and characterization of silica-gold core-shell (SiO2@Au) nanoparticles. Pramana - J Phys 69, 277–283 (2007). https://doi.org/10.1007/s12043-007-0128-z
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DOI: https://doi.org/10.1007/s12043-007-0128-z