Influence of silver nanoparticles on relaxation processes and efficiency of dipole – dipole energy transfer between dye molecules in polymethylmethacrylate films

Journal Article · Sat Oct 31 04:00:00 EDT 2015 · Quantum Electronics (Woodbury, N.Y.)

DOI:https://doi.org/10.1070/QE2015V045N10ABEH015791· OSTI ID:22551171

Bryukhanov, V V; Borkunov, R Yu; Tsarkov, M V ^[1]; Konstantinova, E I; Slezhkin, V A ^[2]

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1. Immanuel Kant Baltic Federal University, Kaliningrad (Russian Federation)
2. Kaliningrad State Technical University, Kaliningrad (Russian Federation)

The fluorescence and phosphorescence of dyes in thin polymethylmethacrylate (PMMA) films in the presence of ablated silver nanoparticles has been investigated in a wide temperature range by methods of femtosecond and picosecond laser photoexcitation. The fluorescence and phosphorescence times, as well as spectral and kinetic characteristics of rhodamine 6G (R6G) molecules in PMMA films are measured in a temperature range of 80 – 330 K. The temperature quenching activation energy of the fluorescence of R6G molecules in the presence of ablated silver nanoparticles is found. The vibrational relaxation rate of R6G in PMMA films is estimated, the efficiency of the dipole – dipole electron energy transfer between R6G and brilliant green molecules (enhanced by plasmonic interaction with ablated silver nanoparticles) is analysed, and the constants of this energy transfer are determined. (nanophotonics)

• OSTI ID: 22551171
• Journal Information: Quantum Electronics (Woodbury, N.Y.), Journal Name: Quantum Electronics (Woodbury, N.Y.) Journal Issue: 10 Vol. 45; ISSN 1063-7818
• Country of Publication: United States
• Language: English

Related Subjects

77 NANOSCIENCE AND NANOTECHNOLOGY
ACTIVATION ENERGY
DIPOLES
ELECTRONS
ENERGY TRANSFER
EXCITATION
FLUORESCENCE
LASERS
NANOPARTICLES
PHOSPHORESCENCE
PMMA
QUENCHING
RELAXATION
RHODAMINES
SILVER
TEMPERATURE RANGE 0273-0400 K
THIN FILMS