Polarized electroluminescence from bilayer structures

Autor:	Jan Rakusan, Ludwig Brehmer, František Schauer, Geng Wang, Stanislav Nešpůrek, Marie Karaskova
Rok vydání:	2004
Předmět:	Spin coating Materials science Polymers and Plastics Bilayer Organic Chemistry Analytical chemistry Silylene Electroluminescence Condensed Matter Physics Photochemistry chemistry.chemical_compound chemistry Materials Chemistry Phthalocyanine OLED Polysilane Irradiation
Zdroj:	Macromolecular Symposia. 212:441-446
ISSN:	1521-3900 1022-1360
DOI:	10.1002/masy.200450855
Popis:	The photoalignment ability of poly[methyl(phenyl)silylene] (PMPSi) films makes it possible to use them as hole-transporting substrates for the preparation of organic oriented films. A PMPSi layer prepared by spin coating was irradiated, after drying, with linearly polarized UV light. Then, water-soluble hydroxyaluminium phthalocyaninesulfonate [Al(OH)Pc(SO 3 Na) 1-2 ] was deposited by casting. The cell ITO/PMPSi/Al(OH)Pc(S03Na) 1-2 /Al showed non-linear current-voltage characteristics. For applied voltages higher than 10 V, polarized electroluminescence was observed. Its spectral characteristic consisted of two peaks with maxima at about 320 and 700 nm; their polarized anisotropies R EL = Φ || / Φ⊥ were ca. 15 and 0.5, respectively.
Databáze:	OpenAIRE
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