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Epoxy resin has become an integral part of electronic and electrical devices where the material is exposed to pulse stress. Surface charge accumulation and decay of charged dielectric materials are very important parameters related to the electrical properties of the material. Nano-composite technology makes it possible to improve electrical properties of insulating materials. Therefore, it is important...
The organic films such as P3HT/PCBM incorporating Ag metal nanoparticles are fabricated and experimentally characterized. Due to the excited surface plasma induced by Ag metal nanoparticles, the absorption of the active organic material layer is increased by around 30%. The broadened absorption spectrum to the 260-650nm wavelength range is also observed from our measurements because of the enhanced...
Plasmon coupling of dimers of Ag nanoparticles is studied by the EELS as shown in Fig 1a [1]. The spectroscopic images in the above Fig. 1a are extracted from 2.8eV, 3.4eV and 3.6eV respectively, where one can see the preferable exciting points of the features around the Ag nanoparticles. With the aid of DDA calculation(Fig. 1b), the three features are identified as the in-phase plasmon coupling,...
Enhanced nonlinear fluorescence is observed in distributed CdS nanocrystals and Au nanoparticles composite thin film. Well-defined spacings between the semiconductor quantum dots (SQDs) and the metal nanoparticles are considered. The samples are excited with the second harmonic generation of a mode-locked Ti-sapphire laser, and fluorescence spectra are measured. An approximately two-fold increase...
Investigating with pseudo-spectral time-domain method, we show that resonant scattering characteristics of Ag nanoparticle arrays are attributed to near-field surface magnetic field, instead of enhanced electric field induced by plasmonic coupling.
We report surface-plasmon enhanced fluorescence in CdSe/ZnS semiconductor quantum dots via linear and nonlinear excitations. 2times and 10times fluorescence enhancements have been achieved for linear and nonlinear excitations, respectively.
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