Tris(2-Acyl-1,3-indandionate)aluminum(III) complexes as emitting layer in electroluminescent devices
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2016
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BRAZILIAN MEETING ON INORGANIC CHEMISTRY, 18th
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This work reports about syntheses, characterization, Photo (PL) - and electroluminescence
(EL) properties of the complexes presenting general formula [Al(aind)3], where aind: 2-
acetyl-1,3-indandionate (acind), 2-propyl-1,3-indandionate (propind), 2-benzoyl-1,3-
indandionate (bind) or 2-(4-methyl)benzoyl-1,3-indandionate (mbind). These complexes were
characterized by elemental analyses, Fourier-infrared absorption spectroscopy,
thermogravimetric analyses. The bilayer electroluminescent devices were prepared with the
following configuration ITO/NPB/[Al(aind)3]/LiF/Al, where NPB is N,N-bis-1-naphhyl-N,N
-diphenyl-1,1-bifenil-4,4-diamina. The photoluminescent spectra of all complexes are
characterized by overlapped broad bands arising from both fluorescence (around 640 nm) and
phosphorescence (around 525 nm) phenomena (Fig. 1 (a)). On the other hand, their OLEDs
exhibited only a high electroluminescence intense band in the red spectral region that may be
assigned to the phosphorescence from acyl-1,3-indandionate ligands (Fig. 1 (b)). These data
reflects the highest population of excited triplet state when the complexes are electrically
excited. Furthermore, the OLEDs presented emission from low tension (~12V), reaching the
highest intensity around 16 V. According with these results, the tris(2-Acyl-1,3-
indandionate)aluminum(III) complexes act as both efficient electron transporters and emitting
layers.
Como referenciar
TEOTONIO, ERCULES E.S.; COSTA, ISRAEL F.; MOURA, JANDEILSON L.; FAUSTINO, WAGNER M.; CREMONA, MARCO; ADENES, RIAN E.; AVILA, HAROLDO J.C.; BRITO, HERMI F.; FELINTO, MARIA C.F.C. Tris(2-Acyl-1,3-indandionate)aluminum(III) complexes as emitting layer in electroluminescent devices. In: BRAZILIAN MEETING ON INORGANIC CHEMISTRY, 18th, September 25-30, 2016, São Pedro, SP. Abstract... Disponível em: http://repositorio.ipen.br/handle/123456789/27395. Acesso em: 30 Dec 2025.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.