Suppressing surface plasmon losses to improve the efficiency of blue organic light-emitting diodes using the plasmonic quasi-bandgap phenomenon

作     者：TAE-WOO LEE DOHONG KIM JUN HEE HAN SOMIN LEE HOSEUNG LEE SEUNGYEOP CHOI KYUNG CHEOL CHOI 

作者机构：School of Electrical EngineeringKorea Advanced Institute of Science and Technology(KAIST)Daejeon 34141Republic of Korea 

出 版 物：《Photonics Research》 (光子学研究（英文版）)

年 卷 期：2021年第9卷第9期

页      面：1784-1795页

核心收录：

学科分类：0808[工学-电气工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0803[工学-光学工程] 0702[理学-物理学] 

基　　金：Korean Ministry of Science&ICT(NRF-2017R1A5A1014708) National Research Foundation of Korea(2019R1A2C3010012) LG Display Co.,Ltd 

主　　题：light blue surface 

摘      要：It is a persistent problem in organic light-emitting diode(OLED)display devices that the efficiency of blue-light source materials is lower than that of green-or red-light source *** address this problem,numerous studies have investigated blue-light-emitting ***,ensuring the reliability of the blue-light-emitting materials has been difficult in most *** this study,electrodes using asymmetric dielectric/metal/dielectric structures with plasmonic quasi-bandgap characteristics were developed to achieve a highly efficient blue fluorescent *** electrodes were applied in a microcavity OLED and a transparent *** the developed electrode in fabricated OLED devices not only maximized the cavity resonance effect and transparency,but also preserved the advantage of the work function of the metal in terms of electrical properties,with high device *** approach also minimized losses caused by surface plasmon polaritons,which is a blind spot in the optical aspect of metal electrodes,resulting in improved light extraction efficiency.