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Blue superradiance from neat semiconducting alternating copolymer films
Author(s) -
Brouwer Hendrik Jan,
Krasnikov Victor V.,
Hilberer Alain,
Hadziioannou Georges
Publication year - 1996
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.19960081116
Subject(s) - materials science , lasing threshold , superradiance , copolymer , thin film , phenylene , polymer , poly(p phenylene vinylene) , amplified spontaneous emission , optoelectronics , absorbance , photochemistry , fluorescence , laser , conjugated system , optics , nanotechnology , wavelength , chemistry , physics , composite material
Blue superradiant emission in thin polymer films with a low energy threshold, as reported here, offers hope for the possible development of solid‐state electrically pumped polymer lasers. The absorbance, emission, and fluorescence spectra of the blue‐light emitting copolymer poly[dimethylsilylene‐ p ‐phenylene‐vinylene‐(2,5‐di‐ n ‐octyl‐ p ‐phenylene)‐vinylene‐ p ‐phenylene] are presented and discussed. It is suggested that lasing in the superradiant regime occurs as a result of the combination of optically induced net gain and waveguiding in the thin film.