文献类型：期刊文献

中文题名：三氧化钼修饰银透明电极的光电性能及其应用研究

英文题名：Study on photoelectric properties and application of molybdenum trioxide modified silver transparent electrode

作者：金祎超[1];吕昭月[1];谢海芬[1];徐海生[2]

机构：[1]华东理工大学物理学院,上海200237;[2]江苏昆山海斯电子有限公司,江苏昆山215300

年份：2022

卷号：33

期号：9

起止页码：904

中文期刊名：光电子．激光

外文期刊名：Journal of Optoelectronics·Laser

收录：Scopus;北大核心:【北大核心2020】；CSCD:【CSCD2021_2022】；

基金：上海高校市级重点课程(沪教委[2020]58号)资助项目

语种：中文

中文关键词：银;表面形貌;三氧化钼;有机发光二极管(OLED)

外文关键词：silver;surface morphology;molybdenum trioxide(MoO3);organic light-emitting diode(OLED)

摘要：银(silver,Ag)纳米薄膜具有优异的导电性、延展性、易制备等优点,是极具潜力的柔性透明电极材料。通过真空热蒸镀制备不同厚度的银薄膜(6 nm、10 nm、14 nm、18 nm、20 nm、24 nm),由于光散射和光吸收的共同作用,其透过率随厚度的增加呈先减小、再增加、再减小的趋势,厚度为18 nm时最优,最高透过率约60%;而面电阻则随厚度的增加逐渐减小。为提升银膜的透过率,引入高折射率(2.1)电介质三氧化钼(molybdenum trioxide,MoO_(3))对银膜进行修饰,制备了MoO_(3)/Ag/MoO_(3)(MAM)多层膜。结果表明:引入MoO_(3)可以平滑银膜表面,降低面电阻,并改善电导率;更重要的是“MoO_(3)/Ag”界面处会发生折射率耦合,大大提升多层膜的整体透过率,透过率普遍增加至少10%。当银层的厚度为14 nm时,MAM多层膜的透过率最优,可接近70%。最后,以银作为透明阴极,成功制备了双侧发光的绿光有机发光二极管(organic light-emitting diode,OLED)。
Silver is a potential candidate of flexible transparent electrode materials due to its excellent conductivity,malleability and ease preparation.Ag thin films with different thicknesses(6 nm,10 nm,14 nm,18 nm,20 nm,24 nm)were prepared by vacuum thermal evaporation.Because of the combined effect of light scattering and absorption,the transmittance decreased first,then increased,and then decreased with the increase of thickness.When the thickness of Ag film was 18 nm,the best transmittance was about 60%.Meanwhile,the surface resistance decreased gradually with the increase of thickness.In order to improve the transmittance of Ag film,molybdenum trioxide(MoO_(3))with high refractive index of 2.1 was introduced to modify Ag film to prepare MoO_(3)/Ag/MoO_(3)(MAM)multilayer film.The results show that the introduction of MoO_(3)smoothes the surface of Ag film,reduces the surface resistance and improves the conductivity.More importantly,the refractive index coupling occurs at the MoO_(3)/Ag interface,which greatly improves the overall transmittance of the multilayer,and the transmittance generally increases by at least 10%.When the thickness of Ag is 14 nm,the transmittance of MAM multilayer is the best,up to 70%.Finally,the feasibility of silver transparent electrode was verified in a green organic light-emitting diode(OLED).