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Titolo:
Structural optimization of 2,5-diarylsiloles as excellent electron-transporting materials for organic electroluminescent devices
Autore:
Uchida, M; Izumizawa, T; Nakano, T; Yamaguchi, S; Tamao, K; Furukawa, K;
Indirizzi:
Chisso Corp, Yokohama Res Ctr, Yokohama, Kanagawa 2368605, Japan Chisso Corp Yokohama Kanagawa Japan 2368605 hama, Kanagawa 2368605, Japan Kyoto Univ, Inst Chem Res, Kyoto 6110011, Japan Kyoto Univ Kyoto Japan 6110011 Univ, Inst Chem Res, Kyoto 6110011, Japan
Titolo Testata:
CHEMISTRY OF MATERIALS
fascicolo: 8, volume: 13, anno: 2001,
pagine: 2680 - 2683
SICI:
0897-4756(200108)13:8<2680:SOO2AE>2.0.ZU;2-2
Fonte:
ISI
Lingua:
ENG
Soggetto:
BLUE ELECTROLUMINESCENCE; LAYER;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Engineering, Computing & Technology
Citazioni:
22
Recensione:
Indirizzi per estratti:
Indirizzo: Uchida, M Chisso Corp, Yokohama Res Ctr, Yokohama, Kanagawa 2368605, JapanChisso Corp Yokohama Kanagawa Japan 2368605 gawa 2368605, Japan
Citazione:
M. Uchida et al., "Structural optimization of 2,5-diarylsiloles as excellent electron-transporting materials for organic electroluminescent devices", CHEM MATER, 13(8), 2001, pp. 2680-2683

Abstract

We have already reported that 2,5-di(2-pyridyl)silole (PySPy) has high performance as an electron-transporting material (ETM) for organic electroluminescent devices (OELDs). For the purpose of developing more practicable ETMs, we have now prepared three new 2,5-diarylsilole derivatives, PPySPyP, PyPySPyPy, and PyPSPPy, having 6-phenyl-2-pyridyl, 6-(2-pyridyl)-2-pyridyl, and 3-(2-pyridyl)phenyl as the aryl groups, respectively, and have studied their structure-properties relationships. These derivatives have higher glass transition temperatures when compared to PySPy. Among these compounds andtris(8-hydroxyquinolino)aluminum (Alq), the bipyridylsilole derivative, PyPySPyPy, showed the highest electron-transporting abilities. The efficiencyof a device consisting of ITO/triphenyldiamine derivative/Alq/PyPySPyPy/MgAg reached 2.2 lm/W at 3.4 V. Furthermore, the half-life time of a device consisting of ITO/triphenylamine dimer derivative/Alq/PyPySPyPy/LiF/Al was nearly 3 times longer than that of the control device without PyPySPyPy under a constant current.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 26/01/21 alle ore 04:09:30