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このアイテムの引用には次の識別子を使用してください: http://hdl.handle.net/10119/10281

タイトル: Molecular orientation induced by high-speed substrate transfer during vacuum vapor deposition of organic films
著者: Matsushima, Toshinori
Murata, Hideyuki
キーワード: Organic light-emitting diodes
Molecular orientation
Substrate transfer during vacuum deposition
Polarized absorption and fluorescence spectra
Homoepitaxial growth on rubbed surface
発行日: 2011-11-18
出版者: Elsevier
誌名: Organic Electronics
巻: 13
号: 2
開始ページ: 222
終了ページ: 229
DOI: 10.1016/j.orgel.2011.10.023
抄録: The authors investigate a relationship between substrate transfer speeds during vacuum vapor deposition and orientation characteristics of organic molecules. Results show that rod-shaped molecules of alpha-sexithiophene (a-6T) are oriented in a substrate transfer direction and an absorption dichroic ratio of 1.44 is obtained from the oriented a-6T molecule film when a high substrate transfer speed of 4 m s^<-1> is used. By combining the substrate transfer technique with homoepitaxial growth of a-6T molecules on a rubbed surface, the absorption dichroic ratio further increases to 4.29. Polarized electroluminescence (EL) characteristics are investigated using rod-shaped molecules of 4,4´-bis[4-(di-p-tolylamino)styryl]biphenyl (DPAVBi) as a light-emitting hole-transport layer. An EL dichroic ratio of 2.12 is obtained due to an orientation of DPAVBi molecules caused by combining two techniques.
Rights: NOTICE: This is the author's version of a work accepted for publication by Elsevier. Toshinori Matsushima and Hideyuki Murata, Organic Electronics, 13(2), 2011, 222-229, http://dx.doi.org/10.1016/j.orgel.2011.10.023
URI: http://hdl.handle.net/10119/10281
資料タイプ: author
出現コレクション:c10-1. 雑誌掲載論文 (Journal Articles)

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