Tuning emitting color of electroluminescent devices containing tris(2‑acyl‑1,3‑indandionate)aluminum(III) complexes as emitting layers
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Journal of the Brazilian Chemical Society
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In this study, a novel type of tris(2-acyl-1,3-indandione)-aluminum(III) coordination
compounds of the general formula [Al(acind)3]H2O, where 2-acyl-1,3-indandione (acind), 2-acetyl-
1,3-indandione (aind), 2-benzoyl-1,3-indandione (bind), and 4-methyl-2-benzoyl-1,3-indandione
(mbind), were synthesized and characterized by elemental analysis (CHN), Fourier transform
infrared (FTIR) and nuclear magnetic resonance (1H NMR) spectroscopies, thermal analysis
(TG/DTG and DTA), and optical absorption spectroscopy in the UV-Vis region. These compounds
present remarkably high green luminescence in powder and in thin-film forms. However, when these
compounds are applied in glass/ITO/β-NPB/spiro-2CBP/[Al(acind)3]/Al and glass/ITO/β‑NPB/
[Al(acind)3]/LiF/Al electroluminescent devices, where spiro-2CBP is 2,7-bis(carbazol-9-yl)-9,9-
spirobifluorene and β-NPB is N,N’-bis(naphthalen-2‑yl)-N,N’-bis(phenyl)-benzidine, the emission
color tuned from green to red, reflecting a change from the direct charge recombination in the
emitting layer of the [Al(acind)3] complexes to an exciplex-based emission in which [Al(acind)3]
complexes and spiro 2-CBP acted as acceptor and donor, respectively. These results suggest that
[Al(acind)3] complexes have potential applications as molecular light converter materials for
fabricating new electroluminescent devices.
Como referenciar
COSTA, ISRAEL F.; MOURA, JANDEILSON L.; ADERNE, RIAN E.; AVILA, HAROLD C.; CREMONA, MARCO; BRITO, HERMI F.; FELINTO, MARIA C.F.C.; FAUSTINO, WAGNER M.; TEOTONIO, ERCULES E.S. Tuning emitting color of electroluminescent devices containing tris(2‑acyl‑1,3‑indandionate)aluminum(III) complexes as emitting layers. Journal of the Brazilian Chemical Society, v. 30, n. 8, p. 1647-1656, 2019. DOI: 10.21577/0103-5053.20190064. Disponível em: http://repositorio.ipen.br/handle/123456789/30356. Acesso em: 20 Mar 2026.
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.