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Titolo:
Soluble europium complexes for light-emitting diodes
Autore:
Yu, G; Liu, YQ; Wu, X; Zhu, DB; Li, HY; Jin, LP; Wang, MZ;
Indirizzi:
Chinese Acad Sci, Inst Chem, Ctr Mol Sci, Beijing 100080, Peoples R China Chinese Acad Sci Beijing Peoples R China 100080 100080, Peoples R China Beijing Normal Univ, Dept Chem, Beijing 100875, Peoples R China Beijing Normal Univ Beijing Peoples R China 100875 0875, Peoples R China
Titolo Testata:
CHEMISTRY OF MATERIALS
fascicolo: 9, volume: 12, anno: 2000,
pagine: 2537 - 2541
SICI:
0897-4756(200009)12:9<2537:SECFLD>2.0.ZU;2-6
Fonte:
ISI
Lingua:
ENG
Soggetto:
ORGANIC ELECTROLUMINESCENT DEVICES; HIGHLY EFFICIENT; CONJUGATED POLYMERS; EMISSION; PHOTOLUMINESCENCE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Engineering, Computing & Technology
Citazioni:
31
Recensione:
Indirizzi per estratti:
Indirizzo: Yu, G Chinese Acad Sci, Inst Chem, Ctr Mol Sci, Beijing 100080, Peoples R China Chinese Acad Sci Beijing Peoples R China 100080 0, Peoples R China
Citazione:
G. Yu et al., "Soluble europium complexes for light-emitting diodes", CHEM MATER, 12(9), 2000, pp. 2537-2541

Abstract

Soluble rare-earth complexes LiEu(TTA)(4), NaEu(TTA)(4), and KEu(TTA)(4) [TTA = 2-thenoyltrifluoroacetonato] were synthesized, and their luminescenceproperties doped in poly(N-vinylcarbazole) (PVK) thin films and in different solvents were observed. The results indicate that the emission comes from the Eu3+ ion. The photoluminescence spectra of NaEu(TTA)(4) are independent of the solvent, with the exception of the luminescence intensity. When NaEu(TTA)(4) is doped into PVK films, the luminescence intensity of the Eu3ion is enhanced with increasing NaEu(TTA)(4) concentration in the PVK film. The nature of the cations in the Eu3+ complexes does not affect the luminescence performance and processability of the complexes. Single-, double-, and three-layer light-emitting diodes based on PVK doped with LiEu(TTA)(4),NaEu(TTA)(4), and KEu(TTA)(4) as an active layer were fabricated and investigated.

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Documento generato il 11/07/20 alle ore 11:16:40