{'fraction_non_alphanumeric': 0.028066528066528068, 'fraction_numerical': 0.0, 'mean_word_length': 5.595890410958904, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Effect of noble metal core plasmons on spectroscopic properties of organic shell

The plasmon-exciton coupling in composite nanoparticles (NPs) was studied for different geometry noble metal core (Ag, Au) coated with the layer of cyanine dye (TC) in J-aggregate state. For such a system peak or dip in the absorption spectrum is observed on the wavelength corresponding to J-aggregate but photoluminescence is completely quenched by the metal core. For three-component nanoparticles with J-aggregate shell separated from the metal core with monomolecular dielectric layer (TMA) the interaction of metal plasmons and J-aggregate excitons is maintained meanwhile luminescence quenching is weakened. Fast dynamics (few picoseconds) in transient absorption of three-component nanoparticles was observed. Raman spectra of two-component and three-component nanoparticles were measured and conditions of observing Surface Enhanced Raman Scattering (SERS) are discussed.