第44卷第1期2023年1月Vol.44No.1Jan.,2023发光学报CHINESEJOURNALOFLUMINESCENCE高效有机发光二极管的光提取技术及其研究进展曲志浩,蔡嘉恒,周东营,廖良生*(苏州大学功能纳米与软物质研究院,江苏苏州215123)摘要:高性能材料研究使有机发光二极管(Organiclight‐emittingdiode,OLED)取得了突飞猛进的发展,但是器件内部生成的光子由于光学损耗无法全部发射到外部空间,从而极大地降低了OLED效率,并阻碍了其在节能照明市场的应用。通过调控光损失区域的波传导,光提取技术能够有效抑制衬底、波导、表面等离子激元等损耗模式,理论上可使效率扩大4倍。具有1.05~2倍扩大效果的光提取技术已被大量报道,但与理论极限仍存在很大差距。为此,本文简要分析了OLED光学损耗模式,综述了近年来高效的、特别是能实现2倍以上扩大效果的光提取技术。关键词:有机发光二极管;光提取;波导模式;微纳结构中图分类号:TN312.8文献标识码:ADOI:10.37188/CJL.20220314AdvancesinHighlyEffectiveLightExtractionSchemesforOrganicLight-emittingDiodesQUZhihao,CAIJiaheng,ZHOUDongying,LIAOLiangsheng*(InstituteofFunctionalNano&SoftMaterials,SoochowUniversity,Suzhou215123,China)*CorrespondingAuthor,E-mail:lsliao@suda.edu.cnAbstract:Researchesinadvancedandefficientmaterialshavegreatlypromotedthefastdevelopmentoforganiclight-emittingdiodes(OLEDs).However,thegeneratedphotonsinsidethedevicecannotcompletelyescapeintotheexternalfieldduetotheinherentopticallosses,whichgreatlyreducestheelectroluminescenceefficiencyofOLEDsandhindersthecommercializationprogressofOLEDsforlightingapplications.Bymanipulatingthelightpropagationinthevicinityofopticallosses,lightextractionschemescouldefficientlysuppressthesubstratemode,thewaveguidemode,andthesurfaceplasmonpolaritonmode,leadingtoamaximumenhancementfactorof4intheo‐ry.AlargenumberofreportedlightextractionstrategiescouldimprovetheOLEDefficiencyby1.05-2times,butstilllagbehindthetheoricallimit.Withthisregard,webrieflyintroducetheopticallossmechanisminOLEDsandsummarizetherecentprogressesofhighlyeffectivelightextractiontechnologiesparticularlywiththepromisingen‐hancementfactorofabove2.Keywords:organicl...