Chen, Mei-HsinMei-HsinChenLu, Yin-JuiYin-JuiLuChang, Yu-JenYu-JenChangWu, Chung-ChihChung-ChihWuWu, Chih-IChih-IWu2018-09-102018-09-102010-04http://scholars.lib.ntu.edu.tw/handle/123456789/359344https://www.scopus.com/inward/record.uri?eid=2-s2.0-77951193186&doi=10.1149%2f1.3354982&partnerID=40&md5=c6f1301bbb5904ed36a81174ef3682ddThe interfacial interactions resulted from various Cs-derivatives, including cesium carbonate (Cs2 CO3), cesium fluoride (CsF), and cesium nitrite (CsNO3), with tris-(8-hydroxyquinoline)- aluminum (Alq3) in organic light emitting diodes (OLEDs) were investigated via photoemission spectroscopy and current-voltage characteristics. The n-type doping effect caused by Cs2 CO3 in Alq 3 is most efficient among the three compounds. Based on the results of current injection efficiency, the performance of OLEDs with CsF in cathode structures is similar to that with Cs2 CO3, which can function well with both Al and Ag in cathodes. The interfacial reactions in cathodes incorporated with CsNO3 are different than that with two other Cs-derivatives, leading to the reaction between Al and CsNO3 which could lower the electron injection barrier. © 2010 The Electrochemical Society.8-Hydroxyquinoline; Cathode structure; Cesium carbonates; Cesium fluoride; Current injection efficiency; Electron-injection barrier; Interfacial interaction; Interfacial reactions; n-Type doping; Photoemission spectroscopy; Cathodes; Cesium; Cesium compounds; Current voltage characteristics; Emission spectroscopy; Helmet mounted displays; Light emission; Light emitting diodes; Silver; Organic light emitting diodes (OLED)journal article10.1149/1.33549822-s2.0-77951193186WOS:000276619300025