https://scholars.lib.ntu.edu.tw/handle/123456789/325560
標題: | Electronic structures and electron-injection mechanisms of cesium-carbonate-incorporated cathode structures for organic light-emitting devices | 作者: | CHIH-I WU C.-T. Lin Y.-H. Chen M.-H. Chen Y.-J. Lu CHUNG-CHIH WU |
公開日期: | 四月-2006 | 卷: | 88 | 期: | 15 | 起(迄)頁: | 152104 | 來源出版物: | Applied Physics Letters | 摘要: | In this letter, we investigate electronic structures and electron-injection mechanisms of the effective cathode structures for organic light-emitting devices incorporating cesium carbonate (Cs2 C O3), either deposited as an individual thin injection layer or doped into the organic electron-transport layers. The electronic structures and the interface chemistry studied by ultraviolet and x-ray photoemission spectroscopy show that the enhanced electron injection is associated with strong n -doping effects and increase of electron concentrations in the electron-transport layer induced by Cs2 C O3. Since such a reaction occurs without the presence of metals, cathode structures incorporating Cs2 C O3 may be applied to a wide range of electrode materials. © 2006 American Institute of Physics. |
URI: | http://scholars.lib.ntu.edu.tw/handle/123456789/325560 https://www.scopus.com/inward/record.uri?eid=2-s2.0-33646132027&doi=10.1063%2f1.2192982&partnerID=40&md5=4d2f53170219c1fe609f1dbc501271e4 |
ISSN: | 00036951 | DOI: | 10.1063/1.2192982 | SDG/關鍵字: | Carbonates; Cathodes; Cesium alloys; Light emitting diodes; Semiconductor doping; X ray photoelectron spectroscopy; Cathode structures; Cesium-carbonate-incorporated cathode; Electron injection; Electronic structure |
顯示於: | 電機工程學系 |
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