{"title":"LiF/Al/Au和堆叠相位调谐层对高对比度串联有机发光器件视角的影响","authors":"B. Ding, K. Alameh","doi":"10.1109/HONET.2014.7029399","DOIUrl":null,"url":null,"abstract":"The impact of a LiF/Al/Au composite layer on both electrical performance and optical performance of high contrast-ratio tandem organic light emitting devices (HCT-OLEDs) operating in wide viewing angle regimes is investigated. The strong photon emission from Al/Au/ NPB(N,N'-di(naphthalene-1-yl)- N,N'-diphenylbenzidine) /Alq3(tris8-hydroxyquinoline-aluminum)/LiF/Al and the symmetrical current-voltage curve for Al/LiF/Alq3/LiF/Al verify the hole-injecting anodic and the electron-injecting cathodic roles of Al(4 nm)/Au(7 nm) and Al(4 nm)/LiF(0.7 nm), respectively. The reflectivity spectrum is measured for viewing angles ranging from 5° to 50°. Experimental results show that when the viewing angle is increased from 5° to 50°, the reflectivity spectrum is blue shifted, which affects the contrast of HCT-OLEDs. Importantly, the measured average reflectivity in the visible range for viewing angles below 50° is as low as 6.6%, making the proposed HCT-OLEDs attractive for flat-panel-display applications.","PeriodicalId":297826,"journal":{"name":"2014 11th Annual High Capacity Optical Networks and Emerging/Enabling Technologies (Photonics for Energy)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Impact of the LiF/Al/Au and stacked phase tuning layers on the viewing angle of high contrast-ratio tandem organic light emitting devices\",\"authors\":\"B. Ding, K. Alameh\",\"doi\":\"10.1109/HONET.2014.7029399\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The impact of a LiF/Al/Au composite layer on both electrical performance and optical performance of high contrast-ratio tandem organic light emitting devices (HCT-OLEDs) operating in wide viewing angle regimes is investigated. The strong photon emission from Al/Au/ NPB(N,N'-di(naphthalene-1-yl)- N,N'-diphenylbenzidine) /Alq3(tris8-hydroxyquinoline-aluminum)/LiF/Al and the symmetrical current-voltage curve for Al/LiF/Alq3/LiF/Al verify the hole-injecting anodic and the electron-injecting cathodic roles of Al(4 nm)/Au(7 nm) and Al(4 nm)/LiF(0.7 nm), respectively. The reflectivity spectrum is measured for viewing angles ranging from 5° to 50°. Experimental results show that when the viewing angle is increased from 5° to 50°, the reflectivity spectrum is blue shifted, which affects the contrast of HCT-OLEDs. Importantly, the measured average reflectivity in the visible range for viewing angles below 50° is as low as 6.6%, making the proposed HCT-OLEDs attractive for flat-panel-display applications.\",\"PeriodicalId\":297826,\"journal\":{\"name\":\"2014 11th Annual High Capacity Optical Networks and Emerging/Enabling Technologies (Photonics for Energy)\",\"volume\":\"39 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2014-12-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2014 11th Annual High Capacity Optical Networks and Emerging/Enabling Technologies (Photonics for Energy)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/HONET.2014.7029399\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2014 11th Annual High Capacity Optical Networks and Emerging/Enabling Technologies (Photonics for Energy)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/HONET.2014.7029399","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Impact of the LiF/Al/Au and stacked phase tuning layers on the viewing angle of high contrast-ratio tandem organic light emitting devices
The impact of a LiF/Al/Au composite layer on both electrical performance and optical performance of high contrast-ratio tandem organic light emitting devices (HCT-OLEDs) operating in wide viewing angle regimes is investigated. The strong photon emission from Al/Au/ NPB(N,N'-di(naphthalene-1-yl)- N,N'-diphenylbenzidine) /Alq3(tris8-hydroxyquinoline-aluminum)/LiF/Al and the symmetrical current-voltage curve for Al/LiF/Alq3/LiF/Al verify the hole-injecting anodic and the electron-injecting cathodic roles of Al(4 nm)/Au(7 nm) and Al(4 nm)/LiF(0.7 nm), respectively. The reflectivity spectrum is measured for viewing angles ranging from 5° to 50°. Experimental results show that when the viewing angle is increased from 5° to 50°, the reflectivity spectrum is blue shifted, which affects the contrast of HCT-OLEDs. Importantly, the measured average reflectivity in the visible range for viewing angles below 50° is as low as 6.6%, making the proposed HCT-OLEDs attractive for flat-panel-display applications.
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