Engineering of metal-free bipyridine-based bridged silsesquioxanes for sustainable solid-state lighting
authors Graffion, J; Cattoen, X; Freitas, VT; Ferreira, RAS; Man, MWC; Carlos, LD
nationality International
journal JOURNAL OF MATERIALS CHEMISTRY
keywords EMITTING-DIODES; HYBRIDS; EFFICIENT; PHOSPHORS; BLINKING; EMISSION
abstract We demonstrate an improvement of the emission quantum yield and the luminance figures of merit of metal-free bridged silsesquioxanes-by a factor of 2, 0.43 +/- 0.04, and by two orders of magnitude, (1.4 +/- 0.1) x 10 4 cd m(-2), respectively-by changing the regioisomer of the silylated precursor. The organic-inorganic hybrids are easily excited by commercial blue InGaN-based light emitting diodes (LEDs) displaying an intriguing potential to applications in green photonics as metal-free phosphors for solid state lighting.
publisher ROYAL SOC CHEMISTRY
issn 0959-9428
year published 2012
volume 22
issue 14
beginning page 6711
ending page 6715
digital object identifier (doi) 10.1039/c2jm15225h
web of science category Chemistry, Physical; Materials Science, Multidisciplinary
subject category Chemistry; Materials Science
unique article identifier WOS:000301459500030

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