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Optical Modulation of Amplified Emission in a Polyfluorene–Diarylethene Blend
Author(s) -
Perissinotto Stefano,
Garbugli Michele,
Fazzi Daniele,
Bertarelli Chiara,
Carvelli Marco,
Srimath Kandada Ajay R.,
Yue Zhounan,
Wong Kam S.,
Lanzani Guglielmo
Publication year - 2011
Publication title -
chemphyschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.016
H-Index - 140
eISSN - 1439-7641
pISSN - 1439-4235
DOI - 10.1002/cphc.201100480
Subject(s) - polyfluorene , photocurrent , diarylethene , modulation (music) , materials science , photoluminescence , photonics , optoelectronics , quenching (fluorescence) , amplified spontaneous emission , fluorescence , signal (programming language) , photochemistry , optics , electroluminescence , chemistry , laser , nanotechnology , physics , computer science , programming language , layer (electronics) , acoustics
A novel system for the modulation of amplified emission based on a polyfluorene/diarylethene (namely F8BT/DTP) blend is shown. The high sensitivity of amplified spontaneous emission (ASE) is exploited to achieve efficient emission modulation with a low‐intensity control signal. Modulation is then characterized by photoluminescence (PL) lifetime measurements, photocurrent experiments, and density functional theory calculations. This system can also act as a photocurrent switch based on the same principle. This technique may represent a useful tool for fluorescence quenching and sensing as well as find application in organic photonics.