Near-Field Interactions between Metal Nanoparticle Surface Plasmons and Molecular Excitons in Thin-Films. Part I: Absorption

In this and the following paper (parts I and II, respectively), we systematically study the interactions between surface plasmons of metal nanoparticles (NPs) with excitons in thin-films of organic media. In an effort to exclusively probe near-field interactions, we utilize spherical Ag NPs in a size-regime where far-field light scattering is negligibly small compared to absorption. In part I, we discuss the effect of the presence of these Ag NPs on the absorption of the embedding medium by means of experiment, numerical simulations, and analytical calculations, all shown to be in good agreement. We observe absorption enhancement in the embedding medium due to the Ag NPs with a strong dependence on the medium permittivity, the spectral position relative to the surface plasmon resonance frequency, and the thickness of the organic layer. By introducing a low-index spacer layer between the NPs and the organic medium, this absorption enhancement is experimentally confirmed to be a near-field effect. In part I...

[1]  Ulrich Wiesner,et al.  Plasmonic dye-sensitized solar cells using core-shell metal-insulator nanoparticles. , 2011, Nano letters.

[2]  Paul Heremans,et al.  Plasmonic Efficiency Enhancement of High Performance Organic Solar Cells with a Nanostructured Rear Electrode , 2013 .

[3]  A. Nitzan,et al.  Spectroscopic properties of molecules interacting with small dielectric particles , 1981 .

[4]  S. Link,et al.  Probing a century old prediction one plasmonic particle at a time. , 2010, Nano letters.

[5]  V. Shalaev,et al.  Demonstration of a spaser-based nanolaser , 2009, Nature.

[6]  P. Jain,et al.  Calculated absorption and scattering properties of gold nanoparticles of different size, shape, and composition: applications in biological imaging and biomedicine. , 2006, The journal of physical chemistry. B.

[7]  U. Kreibig,et al.  Separation of plasmon-polariton modes of small metal particles , 1987 .

[8]  A. Saito,et al.  Enhanced fluorescence by surface plasmon coupling of Au nanoparticles in an organic electroluminescence diode , 2010 .

[9]  Haiyang Li,et al.  Electronic structures of CuPc on a Ag(110) surface , 2007 .

[10]  H. Atwater,et al.  Plasmonics for improved photovoltaic devices. , 2010, Nature materials.

[11]  S. Choulis,et al.  Influence of metallic nanoparticles on the performance of organic electrophosphorescence devices , 2006 .

[12]  Meir Orenstein,et al.  Controlling absorption enhancement in organic photovoltaic cells by patterning Au nano disks within the active layer. , 2011, Optics express.

[13]  T. Vargo,et al.  Modeling interband transitions in silver nanoparticle-fluoropolymer composites. , 2005, The journal of physical chemistry. B.

[14]  D. Bradley,et al.  Plasmonic sinks for the selective removal of long-lived states. , 2011, ACS nano.

[15]  Z. Kam,et al.  Absorption and Scattering of Light by Small Particles , 1998 .

[16]  Vincent M. Rotello,et al.  Applications of Nanoparticles in Biology , 2008 .

[17]  K. Lance Kelly,et al.  Chain Length Dependence and Sensing Capabilities of the Localized Surface Plasmon Resonance of Silver Nanoparticles Chemically Modified with Alkanethiol Self-Assembled Monolayers , 2001 .

[18]  P. Heremans,et al.  Near-Field Interactions between Metal Nanoparticle Surface Plasmons and Molecular Excitons in Thin-Films. Part II: Emission , 2012 .

[19]  Katsuaki Tanabe,et al.  Field Enhancement around Metal Nanoparticles and Nanoshells: A Systematic Investigation , 2008 .

[20]  Jung-Yong Lee,et al.  The origin of enhanced optical absorption in solar cells with metal nanoparticles embedded in the active layer. , 2010, Optics express.

[21]  Stephen R. Forrest,et al.  Mixed donor-acceptor molecular heterojunctions for photovoltaic applications. I. Material properties , 2005 .

[22]  Molly M. Miller,et al.  Sensitivity of metal nanoparticle plasmon resonance band position to the dielectric environment as observed in scattering , 2006 .

[23]  H. Yamashita,et al.  Enhancement of the photoinduced oxidation activity of a ruthenium(II) complex anchored on silica-coated silver nanoparticles by localized surface plasmon resonance. , 2010, Angewandte Chemie.

[24]  J. Weiner,et al.  Fundamentals and applications , 2003 .

[25]  Hossam Haick,et al.  Chemical sensors based on molecularly modified metallic nanoparticles , 2007 .

[26]  S. Maier.  Plasmonics: Fundamentals and Applications , 2007 .

[27]  George C. Schatz,et al.  Correlated Structure and Optical Property Studies of Plasmonic Nanoparticles , 2011 .

[28]  A. Belcher,et al.  Highly efficient plasmon-enhanced dye-sensitized solar cells through metal@oxide core-shell nanostructure. , 2011, ACS nano.

[29]  Lukas Novotny,et al.  Spectral dependence of single molecule fluorescence enhancement. , 2007, Optics express.

[30]  Javier Aizpurua,et al.  Plasmons in nearly touching metallic nanoparticles: singular response in the limit of touching dimers. , 2006, Optics Express.

[31]  P. Heremans,et al.  Excitation of multiple dipole surface plasmon resonances in spherical silver nanoparticles. , 2010, Optics express.

[32]  E. Fort,et al.  Surface enhanced fluorescence , 2008 .

[33]  J. Khurgin,et al.  Practical limits of absorption enhancement near metal nanoparticles , 2009, 2009 Conference on Lasers and Electro-Optics and 2009 Conference on Quantum electronics and Laser Science Conference.

[34]  Peter Bienstman,et al.  Plasmonic absorption enhancement in organic solar cells with thin active layers , 2009 .

[35]  J. Khurgin,et al.  Enhancement of optical properties of nanoscaled objects by metal nanoparticles , 2009 .

[36]  J. Hafner,et al.  Localized surface plasmon resonance sensors. , 2011, Chemical reviews.

[37]  Y. Ozaki,et al.  Surface-enhanced Raman scattering for protein detection , 2009, Analytical and bioanalytical chemistry.

[38]  P. Denk,et al.  Highly Absorbing Solar Cells—a Survey of Plasmonic Nanostructures , 2022 .

[39]  C. Noguez.  Surface Plasmons on Metal Nanoparticles: The Influence of Shape and Physical Environment , 2007 .

[40]  David R. Smith,et al.  Local Refractive Index Dependence of Plasmon Resonance Spectra from Individual Nanoparticles , 2003 .

[41]  Keiko Munechika,et al.  Dependence of fluorescence intensity on the spectral overlap between fluorophores and plasmon resonant single silver nanoparticles. , 2007, Nano letters.

[42]  Stephen R. Forrest,et al.  Long-range absorption enhancement in organic tandem thin-film solar cells containing silver nanoclusters , 2004 .

[43]  L. Eng,et al.  Near-field coupling of a single fluorescent molecule and a spherical gold nanoparticle. , 2007, Optics express.

[44]  L. Lagae,et al.  Fluorescence near gold nanoparticles for DNA sensing. , 2011, Analytical chemistry.

[45]  E. Lidorikis,et al.  Theory of plasmonic near-field enhanced absorption in solar cells , 2011 .

[46]  Toh-Ming Lu,et al.  Deposition of amorphous fluoropolymer thin films by thermolysis of Teflon amorphous fluoropolymer , 1992 .

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

[48]  Otto L. Muskens,et al.  OPTICAL EXTINCTION SPECTRUM OF A SINGLE METAL NANOPARTICLE: QUANTITATIVE CHARACTERIZATION OF A PARTICLE AND OF ITS LOCAL ENVIRONMENT , 2008 .

[49]  Sebastian Schlücker,et al.  SERS microscopy: nanoparticle probes and biomedical applications. , 2009, Chemphyschem : a European journal of chemical physics and physical chemistry.

[50]  D. Ginger,et al.  Plasmon-enhanced charge carrier generation in organic photovoltaic films using silver nanoprisms. , 2010, Nano letters.

[51]  Claire M. Cobley,et al.  Controlling the synthesis and assembly of silver nanostructures for plasmonic applications. , 2011, Chemical reviews.