基于MAPbI电子传输层的颜色可调倒置有机发光器件

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关键词：倒置有机发光器件；MAPbI电子传输层；颜色可调中图分类号：TN383+.1；O482.31 文献标识码：ADOI： 10.37188/CJL.20250091 CSTR：32170.14.CJL.20250091

Color-tunable Inverted Organic Light Emitting Devices Based on MAPbI， Electron TransportLayer

WANG Tao 1 ，JINYuze1，LIANGWeilong¹，ZHANGXiangl*，LIUShihao²，LUOLinbao1 （1.SchoolofMicroelectronics，Hefei UniversityofTechnology，Hefei2306O1，China; 2.CollegeofElectronicsScienceand Engineering，JilinUniversity，Changchun13oo12，China） （20 CorrespondingAuthor，E-mail：zhangx@hfut.edu.cn

Abstract：This studyadresses thehigh electron-injectionbarrierandcarrierimbalanceissues in invertedorganic lightemittingdevices（OLEDs）byincorporatingCH3NH3PbI3（ MAPbI3 ）perovskite asthe electron transport layer（ETL）. Comparativeanalysisreveals thattheMAPbIETLexhibits threesignificantadvantagesovertheconventionalorganicmaterial BPhen：（1）areductionof theelectron-injectionbarrierbyO.9eV，（2）superior electron transportcapability as shownbysingle-carrerdevices，and（3）thedeviceexhibitsareduced turn-onvoltageof1.7V，withacurrenteficiency of28.5cd/Aandanefciencyolloffrateofonly2.4%at5OOOcd/m2.Furthermore，thestudyreveals thatthisETLenablesdynamicregulationoftheexcitonrecombinatiozonedistribution，achievingacontinuous tunabilityofthecolorcoordinatesfrom（0.5760，0.3612）to（0.3993，0.3921）.Thiswork notonlyprovidesanovelperovskite-basedETLfor inverted OLEDs but also demonstrates therole of interface regulation in achieving white emission.

Key Words：inverted organic light-emiting device;MAPbI， electron transport layer；color-tunable

1引言

近年来，有机发光器件（Organic light-emittingdevices，OLEDs）获得了飞速发展，在电视、智能手机、可穿戴设备等多个领域的市场渗透率不断提高，其中，倒置OLEDs由于能与 Πn 沟道非晶硅薄膜晶体管直接集成，从而获得了广泛关注]。（剩余11052字）