Plasmonic surface enhancement of dual fluorescence and phosphorescence emission from organic semiconductors: effect of exchange gap and spin-orbit coupling.
Dual singlet-triplet fluorescence-phosphorescence emitting compounds demonstrate that plasmonic surface enhancement is controlled solely by the underlying oscillator strength of a transition: metal-free compounds with weak spin-orbit coupling show no enhancement in phosphorescence efficiency even though fluorescence is amplified.
Department of Physics and Astronomy, University of Utah, Salt Lake City, UT 84112, USA. dchaudhuri@iiserkol.ac.in
Debangshu
D
Chaudhuri
Dongbo
D
Li
Eva
E
Sigmund
H
H
Wettach
Sigurd
S
Höger
John M
JM
Lupton