Blue-Shifted SPR of Au Nanoparticles with Ordering of Carbon by Dense Ionization and Thermal Treatment

Thin films of carbon-containing Au nanoparticles (NPs), prepared by the co-sputtering using a neutral Ar atom beam, were irradiated by 120 MeV Ag ions and also annealed, separately, at increasing temperatures in inert atmosphere. The surface plasmon resonance (SPR) band of the nanocomposite film was observed to be blue shifted (∼50 nm) in both cases, with increasing fluence and temperature. The structural changes of Au NPs embedded in amorphous carbon matrix were investigated using X-ray diffraction and transmission electron microscopy. A growth of Au NPs was observed with increasing fluence and also with increasing temperature. A percolation of Au NPs was observed at 500 °C. A growth of Au NPs with ion irradiation is explained in the framework of a thermal spike model. Raman spectroscopy revealed the ordering of a-C thin films with increasing fluence and temperature, which is ascribed to a change of refractive index and the blue shift of the SPR band.

[1]  G. Amaratunga,et al.  Evolution of sp2 bonding with deposition temperature in tetrahedral amorphous carbon studied by Raman spectroscopy , 2000 .

[2]  Shaochun Tang,et al.  Shape evolution and thermal stability of Ag nanoparticles on spherical SiO2 substrates , 2008 .

[3]  Robertson.  Mechanical properties and coordinations of amorphous carbons. , 1992, Physical review letters.

[4]  Wagner,et al.  Resonant Raman scattering of amorphous carbon and polycrystalline diamond films. , 1989, Physical review. B, Condensed matter.

[5]  Li,et al.  Radial distribution function of amorphous carbon. , 1990, Physical review letters.

[6]  W. Assmann,et al.  Existence of transient temperature spike induced by SHI: evidence by ion beam analysis , 2004 .

[7]  S. Prawer,et al.  Effects of heavy ion irradiation on amorphous hydrogenated (diamondlike) carbon films , 1987 .

[8]  D. Babonneau,et al.  Silver nanoparticles encapsulated in carbon cages obtained by co-sputtering of the metal and graphite , 1998 .

[9]  Rusli,et al.  Effects of high energetic He+ ion irradiation on the structure of polymeric hydrogenated amorphous carbon , 1999 .

[10]  J. Ghatak,et al.  Synthesis of gold-silicon core-shell nanoparticles with tunable localized surface plasmon resonance , 2008 .

[11]  Roger J. Narayan,et al.  Pulsed laser deposition of functionally gradient diamondlike carbon–metal nanocomposites , 2005 .

[12]  C. Mapelli,et al.  COMMON FORCE FIELD FOR GRAPHITE AND POLYCYCLIC AROMATIC HYDROCARBONS , 1999 .

[13]  D. Lin-Vien.  The Handbook of Infrared and Raman Characteristic Frequencies of Organic Molecules , 1991 .

[14]  Pan,et al.  Local coordination of carbon atoms in amorphous carbon. , 1991, Physical review. B, Condensed matter.

[15]  Mckenzie,et al.  Neutron-scattering studies of the structure of highly tetrahedral amorphous diamondlike carbon. , 1991, Physical review letters.

[16]  H. Carstanjen,et al.  Test of the hypothesis of transient molten state diffusion for swift-heavy-ion induced mixing , 2005 .

[17]  E. Pippel,et al.  Swift heavy ion induced formation of nanocolumns of C clusters in a Si based polymer , 2006, Nanotechnology.

[18]  Koichiro Tanaka,et al.  Ultrafast Optical Switching in a Silver Nanoparticle System , 2000 .

[19]  W. Caseri,et al.  Oriented pearl-necklace arrays of metallic nanoparticles in polymers : a new route toward polarization-dependent color filters , 1999 .

[20]  J. Perrière,et al.  Carbon sputtering of polymer-like amorphous carbon by swift heavy ions , 1999 .

[21]  J. Angus,et al.  Low-Pressure, Metastable Growth of Diamond and "Diamondlike" Phases , 1988, Science.

[22]  David A. Schultz,et al.  Plasmon resonant particles for biological detection. , 2003, Current opinion in biotechnology.

[23]  U. Pal,et al.  Synthesis and characterization of Au nanoparticles in Al2O3 matrix , 2003 .

[24]  S. S. Kim,et al.  Graphitization of ultrathin amorphous carbon films on Si(001) by Ar+ ion irradiation at ambient temperature , 2000 .

[25]  A. Requicha,et al.  Plasmonics—A Route to Nanoscale Optical Devices , 2001 .

[26]  D. Avasthi,et al.  Atom beam sputtering setup for growth of metal particles in silica , 2006 .

[27]  J. Ziegler,et al.  SRIM – The stopping and range of ions in matter (2010) , 2010 .

[28]  R. Lopez,et al.  Rapid tarnishing of silver nanoparticles in ambient laboratory air , 2005 .

[29]  Robertson,et al.  Electronic and atomic structure of amorphous carbon. , 1987, Physical review. B, Condensed matter.

[30]  M. Lux‐Steiner,et al.  Electrically conducting ion tracks in diamond-like carbon films for field emission , 1999 .

[31]  D. Mckenzie,et al.  Electron-diffraction evidence for threefold coordination in amorphous hydrogenated carbon films , 1983 .

[32]  M. Bozack,et al.  Polymer-initiated photogeneration of silver nanoparticles in SPEEK/PVA films: direct metal photopatterning. , 2004, Journal of the American Chemical Society.

[33]  J. Ziegler.  THE STOPPING AND RANGE OF IONS IN SOLIDS , 1988 .

[34]  S. Logothetidis,et al.  Crystallization effects and diamond formation in amorphous carbon films under low energy ion beam irradiation , 2001 .

[35]  A. Bubenzer,et al.  Hard carbon coatings with low optical absorption , 1983 .

[36]  M. Hillenkamp,et al.  Instability of Ag nanoparticles in SiO2 at ambient conditions , 2007 .

[37]  Y. Mishra,et al.  Synthesis of metal–polymer nanocomposite for optical applications , 2007 .

[38]  Joan Adler,et al.  Computer simulations of damage due to passage of a heavy fast ion through diamond , 2004 .

[39]  A. R. Merchant,et al.  Ion beam modification of tetrahedral amorphous carbon : the effect of irradiation temperature , 1997 .

[40]  S. Ghosh,et al.  Swift heavy ion (150 MeV:Ag13 +) induced structural changes in a-C:H films studied by Raman spectroscopy , 2005 .

[41]  P. D. Swift,et al.  Electron optical techniques for microstructural andcompositional analysis of thin films , 1990 .

[42]  Michael Vollmer,et al.  Optical properties of metal clusters , 1995 .

[43]  John Robertson,et al.  Diamond-like carbon , 1994 .

[44]  F. Hong,et al.  Studies of ion irradiation effects in hydrogenated amorphous carbon thin films by X-ray absorption and photoemission spectroscopy , 2008 .

[45]  S. Mohapatra,et al.  Synthesis and characterization of Ag nanoparticles in silica matrix by atom beam sputtering , 2007 .

[46]  James P. Doyle,et al.  Vapor deposition processes for amorphous carbon films with sp3 fractions approaching diamond , 1991 .

[47]  J. Robertson,et al.  Interpretation of Raman spectra of disordered and amorphous carbon , 2000 .

[48]  S. Solin,et al.  “Diamond-like” 3-fold coordinated amorphous carbon , 1980 .

[49]  A. Medvid,et al.  Graphitization of amorphous diamond-like carbon films by laser irradiation , 2008 .

[50]  Suguru Sangu,et al.  Nanophotonics: design, fabrication, and operation of nanometric devices using optical near fields , 2002 .

[51]  Koji Maeda,et al.  Evolution kinetics of sp2 ordering in tetrahedral amorphous carbon films induced by electron irradiation , 2005 .

[52]  Stephanie R. Sails,et al.  Monitoring the quality of diamond films using Raman spectra excited at 514.5 nm and 633 nm , 1996 .

[53]  Raymond A. Buchanan,et al.  Electrochemical and Antimicrobial Properties of Diamondlike Carbon-Metal Composite Films , 2006 .

[54]  F. C. Zawislak,et al.  Hard and sp2-rich amorphous carbon structure formed by ion beam irradiation of fullerene, a-C and polymeric a-C:H films , 2004 .

[55]  Lawrence R. Doolittle,et al.  Algorithms for the rapid simulation of Rutherford backscattering spectra , 1985 .

[56]  F. Tuinstra,et al.  Raman Spectrum of Graphite , 1970 .

[57]  Ilker S. Bayer,et al.  Controlled growth of gold nanoparticles induced by ion irradiation: An in situ x-ray diffraction study , 2007 .

[58]  G. U. Kulkarni,et al.  Nanogranular Au films deposited on carbon covered Si substrates for enhanced optical reflectivity and Raman scattering , 2007 .