高透明度、高雾度塑料纸在有机发光器件中的应用及其性能提升  

Application and performance improvement of high transparency and high haze plastic-paper in organic light-emitting devices

作　　者：宋忠铭 刘国栋[1] 王银凤 吴家豪 袁俊钊 SONG Zhong-ming;LIU Guo-dong;WANG Yin-feng;WU Jia-hao;YUAN Jun-zhao(College of Bioresources Chemical and Materials Engineering,National Demonstration Center for Experimental Light Chemistry Engineering Education,Shaanxi Province Key Laboratory of Papermaking Technology and Specialty Paper,Key Laboratory of Functional Printing and Transport Packaging of China National Light Industry,Key Laboratory of Paper based Functional Materials of China National Light Industry,Shaanxi University of Science&Technology,Xi′an 710021,China)

机构地区：[1]陕西科技大学、轻工科学与工程学院轻化工程国家级实验教学示范中心、陕西省造纸技术及特种纸品开发重点实验室、中国轻工业功能印刷与运输包装重点实验室、中国轻工业纸基功能材料重点实验室,陕西西安710021

出　　处：《陕西科技大学学报》2024年第2期9-16,共8页Journal of Shaanxi University of Science & Technology

基　　金：国家自然科学基金项目(22078186)。

摘　　要：随着柔性电子行业的发展,传统的PET、PEN等塑料衬底由于成本更高,光取出效率低下等问题已经无法满足人们的需求.纸张由于其获取途径广泛,成本低廉,更加轻薄是一种前景广阔的柔性衬底.通过浸渍涂布工艺,将环氧树脂与硫酸纸进行结合,制备了一种新的基材,即塑料纸.通过测试发现,塑料纸具有优异的光学性能、机械性能以及水和化学稳定.研究结果表明,通过环氧树脂涂布处理后,不仅提高了纸张表面的平整性,而且改善了纸张的润湿性.制备出的塑料纸光透过率高达88.25%,达到与PET基材同一水平,并且塑料纸的雾度达到62.9%,远远高于PET基材.塑料纸的拉伸强度为108.4 MPa,还兼具良好的水和化学稳定性.在大气环境下,基于发光电化池(LEC)的原理,成功地在塑料纸表面制备出有机发光器件,并实现均匀地发光.该器件的最大亮度为396.2 cd m^(-2),最大电流效率为0.64 cd A-1,是PET衬底的2.9倍,具有更加优异的光电性能.所研制的高透光率、高光雾度的塑料纸在柔性光电器件中具有很大的应用潜力.With the rapid development of flexible electronics industry,the conventional PET、PEN and other plastic substrates are unable to satiate the requirement due to higher cost and low light extraction efficiency.Paper has broad prospects as a flexible substrate due to its wide access,low-cost and thinness.In this paper,we integrated epoxy resin into sulfuric acid paper to fabricate a new type of substrate:plastic-paper.The plastic-paper has excellent optical properties,mechanical properties as well as water and chemical stability,as found through testing.Results show that the surface flatness and wettability of the paper are improved by the application of epoxy resin coating.The plastic-paper has a high optical transmittance up to 88.25%,reaching the same level with PET substrate.And the plastic-paper also has a high transmittance haze of 62.9%,which is far higher than PET substrate.The plastic-paper has a tensile strength up to 108.4 MPa,along with excellent water and chemical stability.Successful fabrication the organic light-emitting device on the plastic-paper surface and emitted uniform light based on the principle of light-emitting electrochemical cell(LEC),under atmospheric condition.The best device performance with a maximum luminance of 396.2 cd m^(-2),a maximum current efficiency of 0.64 cd A-1,which is 2.9 times higher than that of PET substrates,providing more excellent optoelectronic properties.The developed plastic-paper with high optical transmittance and high optical haze holds a great potential in flexible optoelectronic devices.

关 键 词：塑料纸 透光率 雾度 光电性能 

分 类 号：TS652[轻工技术与工程] TB332[一般工业技术—材料科学与工程]