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Fluorescence quenching in porous silicon/conjugated polymer composites
Author(s) -
Pranculis Vytenis,
Karpicz Renata,
Medvids Arturs,
Gulbinas Vidmantas
Publication year - 2012
Publication title -
physica status solidi (a)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 104
eISSN - 1862-6319
pISSN - 1862-6300
DOI - 10.1002/pssa.201127309
Subject(s) - quenching (fluorescence) , polymer , porous silicon , fluorescence , materials science , silicon , kinetics , photochemistry , fluorescence spectroscopy , chemical engineering , analytical chemistry (journal) , composite material , chemistry , optoelectronics , organic chemistry , optics , physics , quantum mechanics , engineering
MEH‐PPV and m‐LPPP polymers were spin‐coated onto porous silicon (PS). Quenching of the polymer and PS fluorescence has been investigated by means of time‐resolved and steady state fluorescence spectroscopy. Decay kinetics of the PS fluorescence in the blue spectral region attributed to the oxidized silicon surface reveals its quenching by the polymer film. No clear evidence of the opposite process, quenching of the polymer fluorescence by PS has been obtained.