Intrinsically stretchable OLEDs with a designed morphology-sustainable layer and stretchable metal cathode  

作　　者：Je-Heon Oh Kun-Hoo Jeon Jin-Woo Park 

机构地区：[1]Department of Materials Science and Engineering,Yonsei University,Seoul,03722,Korea

出　　处：《npj Flexible Electronics》2024年第1期465-474,共10页npj-柔性电子(英文)

基　　金：supported by a National Research Foundation of Korea(NRF)Grant funded by the Korea Government(MSIT)(RS-2023-00302611)and the Technology Innovation Program Development Program(“20022479”,“Development of deuterium oxide localization and deuterium benzene synthesis technology to improve OLED lifetime by 25%”)funded by the Ministry of Trade,Industry&Energy(MOTIE,Korea).

摘　　要：The development of wearable devices has increased the need for organic light-emitting diodes(OLEDs)that are soft,stretchable,and can integrate seamlessly with the human body.Traditional intrinsically stretchable OLEDs(is-OLED)often suffer from reduced performance due to orthogonal solvent problem and lamination fabrication process,which can cause defects and delamination.To overcome these challenges,we developed a sequentially coated is-OLED and confirmed the maintenance of the designed morphologies of each layer and a highly stretchable metallic is-cathode.Our is-OLEDs achieved a maximum total luminance of 3151 cdm(–2)and a total current efficiency of 5.4 cd A^(–1).It also demonstrated superior durability,with the ability to stretch up to 70%and maintain 80%luminance after 300 cycles at 40%strain.This advancement suggests a promising future for durable and efficient soft electronic devices.

关 键 词：OLEDS LAYER DURABILITY 

分 类 号：TN3[电子电信—物理电子学]