Role of synthesis for oxygen defect incorporation in crystalline rubrene

Using photoluminescence characteristics at room temperature, we analyze incorporation of an oxygen-related defect, most likely rubrene peroxide, which produces an acceptor state in crystalline rubrene. Incorporation of rubrene-peroxide molecules can occur during the crystal growth as well as a resul...

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Bibliographic Details
Published in:Applied physics letters 2007-11, Vol.91 (21), p.212106-212106-3
Main Authors: Mitrofanov, Oleg, Kloc, Christian, Siegrist, Theo, Lang, David V., So, Woo-Young, Ramirez, Arthur P.
Format: Article
Language:English
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Summary:Using photoluminescence characteristics at room temperature, we analyze incorporation of an oxygen-related defect, most likely rubrene peroxide, which produces an acceptor state in crystalline rubrene. Incorporation of rubrene-peroxide molecules can occur during the crystal growth as well as a result of the postgrowth oxidation, which depends on the presence of structural disorder.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.2815939