Plasmonic properties of silver in polymer

Abstract In the present research silver nanoparticles were produced by e-beam evaporation of metal on polymer-modified silica substrate at room temperature (20 °C) and elevated temperature (80 °C). Modification of the silica substrate was done by different weight concentration polymer (PMMA/PS) blends formed from the polymer solutions by spin coating. The silver layer thickness varied from 1 nm to 10 nm. Silver nanoparticles in polymer matrix were characterized by XRD, AFM and UV–vis spectrometry. The crystalline silver nanoparticles showed surface plasmon resonance (SPR) with absorption maximum at 420–550 nm that was dependent on the silver layer thickness, PMMA and PS weight concentration in polymer blends and substrate temperature during vacuum deposition. The silver nanoparticles in polymer with selective light properties resulting from the controlled SPR shifting to the UV–vis wavelength region were produced.

[1]  Vito Di Noto,et al.  PMMA: A key macromolecular component for dielectric low-κ hybrid inorganic–organic polymer films , 2007 .

[2]  S. Karan,et al.  Size selective photoluminescence in poly(methyl methacrylate) thin solid films with dispersed silver nanoparticles synthesized by a novel method , 2006 .

[3]  S. Tamulevičius,et al.  Growth of Ag films on polyethylene terephthalate (PET) deposited by electron beam , 2006 .

[4]  Y. Ozaki,et al.  Water-induced morphology changes in an ultrathin silver film studied by ultraviolet-visible, surface-enhanced Raman scattering spectroscopy and atomic force microscopy , 2005 .

[5]  Zhuang Li,et al.  A simple method for the preparation of ultrahigh sensitivity surface enhanced Raman scattering (SERS) active substrate , 2005 .

[6]  Zhi Li,et al.  Inversion of Phase Morphology in Polymer‐Blend Thin Films on Glass Substrates , 2004 .

[7]  Donghyun Kim,et al.  Effect of resonant localized plasmon coupling on the sensitivity enhancement of nanowire-based surface plasmon resonance biosensors. , 2006, Journal of the Optical Society of America. A, Optics, image science, and vision.

[8]  N. Fang,et al.  Sub–Diffraction-Limited Optical Imaging with a Silver Superlens , 2005, Science.

[9]  S. Maier,et al.  Plasmonics: Metal Nanostructures for Subwavelength Photonic Devices , 2006, IEEE Journal of Selected Topics in Quantum Electronics.

[10]  C. Guillén,et al.  Transparent films on polymers for photovoltaic applications , 2002 .

[11]  T. Matsuura,et al.  Preferential surface segregation of homopolymer and copolymer blend films , 2007 .

[12]  C. Mirkin,et al.  Controlling anisotropic nanoparticle growth through plasmon excitation , 2003, Nature.

[13]  S. Fukuda,et al.  Degradation of Ag and Ag-alloy mirrors sputtered on poly(ethylene terephthalate) substrates under visible light irradiation , 2003 .

[14]  E. Coronado,et al.  The Optical Properties of Metal Nanoparticles: The Influence of Size, Shape, and Dielectric Environment , 2003 .

[15]  A. Shard,et al.  XPS and AFM surface studies of solvent-cast PS/PMMA blends , 2001 .

[16]  M. Rong,et al.  Interfacial interaction in Ag/polymer nanocomposite films , 2001 .

[17]  Dajun Chen,et al.  A one-pot approach to the preparation of silver-PMMA “shell-core” nanocomposite , 2006 .

[18]  J. Tocho,et al.  Sizing gold nanoparticles by optical extinction spectroscopy , 2004 .

[19]  W. Barnes,et al.  Surface plasmon subwavelength optics , 2003, Nature.

[20]  S. Tamulevičius,et al.  The surface properties of PS/PMMA blends nanostructured polymeric layers , 2004 .

[21]  Adam Wax,et al.  Substrate effect on refractive index dependence of plasmon resonance for individual silver nanoparticles observed using darkfield microspectroscopy. , 2005, Optics express.

[22]  Harald Ditlbacher,et al.  Quantitative analysis of surface plasmon interaction with silver nanoparticles. , 2005, Optics letters.

[23]  S. Tamulevičius,et al.  Oxygen Plasma Processing of Silicon and Silica Substrates for Thin Films of Polymer Blends , 2004 .

[24]  N. Perkas,et al.  Coating silver nanoparticles on poly(methyl methacrylate) chips and spheres via ultrasound irradiation , 2007 .

[25]  P. Jain,et al.  Potential of silver nanoparticle-coated polyurethane foam as an antibacterial water filter. , 2005, Biotechnology and bioengineering.

[26]  Heinrich M. Jaeger,et al.  Hierarchical self-assembly of metal nanostructures on diblock copolymer scaffolds , 2001, Nature.

[27]  M. Pinar Mengüç,et al.  Spectrally selective heating of nanosized particles by surface plasmon resonance , 2007 .

[28]  C. Mirkin,et al.  Photoinduced Conversion of Silver Nanospheres to Nanoprisms , 2001, Science.

[29]  H. Ade,et al.  Substrate dependence of morphology in thin film polymer blends of polystyrene and poly(methyl methacrylate) , 2000 .