Creating highly efficient stretchable OLEDs with nanowavy structures for angle-independent narrow band emission  

作　　者：Ajay Nimbalkar Aqsa Irfan Min Chul Suh 

机构地区：[1]Department of Information Display,College of Sciences,Kyung Hee University,26 Kyungheedae-ro,Dongdaemun-gu,Seoul,02447,Republic of Korea

出　　处：《npj Flexible Electronics》2024年第1期312-322,共11页npj-柔性电子(英文)

基　　金：supported by the Industrial Strategic Technology Development Program(20014668,20011059,RS-2024-00418116,RS-2024-00417913)through KEIT,funded by the Ministry of Trade,Industry and Energy,Korea;supported by Basic Science Research Program through the NRF,by the Ministry of Science and ICT,Korea(2021R1A2C1008725);BK21 Plus Program(21A20130000018,)funded through the NRF by the Ministry of Education,Korea.

摘　　要：Stretchable organic light-emitting diodes(SOLEDs)have been the challenging class of OLEDs as they have limited processability to fabricate a design that can withstand external deformation.Herein,we demonstrated the highly efficient top-emitting geometrical stretchable OLED(GSOLED)by incorporating the prestretched elastomer with optical adhesive film.The experimental and theoretical characterizations verified the enhancement of device efficiencies with the light extraction phenomenon brought by nanowavy corrugated structures.Furthermore,GSOLED shows stability in stretchable conditions and displays narrower emission spectrum with improved color purity.The full width at half maximum(FWHM)of 21 nm shows narrowband emission with a high current efficiency and EQE of 221 cd A^(−1) and 39.50%.This work marks a significant step forward,providing unprecedented insights into the factors influencing device performance in current and future material systems for stretchable organic light-emitting diodes.

关 键 词：OLEDS NARROW PURITY 

分 类 号：TN3[电子电信—物理电子学]