Journal
JOURNAL OF PHYSICAL CHEMISTRY C
Volume 122, Issue 1, Pages 762-769Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.jpcc.7b09125
Keywords
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Funding
- Polish National Science Center [2013/09/D/ST4/03780, 2013/11/N/ST4/01488, 2016/21/B/ST8/00468]
- European Research Council under the European Union [306357]
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Concomitant amplified spontaneous emission (ASE) and Forster resonance energy transfer (FRET) are investigated in electrospun light-emitting fibers. Upon dye doping with a proper FRET couple system, free-standing fibrous mats exhibit tunable FRET efficiency and, more importantly, tailorable threshold conditions for stimulated emission. In addition, effective scattering of light is found in the fibrous material by measuring the transport mean free path of photons by coherent backscattering experiments. The interplay of ASE and FRET leads to high control in designing optical properties from electrospun fibers, including the occurrence of simultaneous stimulated emission from both donor and acceptor components. All tunable-optical properties are highly interesting in view of applying electrospun light-emitting materials in lightening, display, and sensing technologies.
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