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Synthesis and characterizations of silver-fullerene C(70) nanocomposite

R. Singhal D. C. Agarwal S. Mohapatra Y. K. Mishra D. Kabiraj F. Singh D. K. Avasthi A. K. Chawla R. Chandra G. Mattei J. C. Pivin 1
CSNSM - Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse
Abstract : Films of C(70) fullerene containing silver nanoparticles were synthesized by thermal codeposition. Optical absorption studies revealed that surface plasmon resonance of Ag nanoparticles occurs at unusually large wavelength, which showed a regular redshift from 521 to 581 nm with increase in metal content from 4.5% to 28%. It is explained by the Maxwell-Garnett theory considering the absorbing nature of fullerene matrix. Rutherford backscattering and transmission electron microscopy were performed to quantify metal content and the particle size, respectively. A better detection of low intensity vibrational modes of C(70) in Raman scattering is observed due to surface enhanced Raman scattering. (c) 2008 American Institute of Physics.
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R. Singhal, D. C. Agarwal, S. Mohapatra, Y. K. Mishra, D. Kabiraj, et al.. Synthesis and characterizations of silver-fullerene C(70) nanocomposite. Applied Physics Letters, American Institute of Physics, 2008, 93, pp.103114. ⟨10.1063/1.2976674⟩. ⟨in2p3-00855437⟩



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