Type: Article
Efficiency enhancement of green organic light-emitting diode utilizing aromatic diamine/bathocuproine multiple quantum wells
Journal: Optical Materials (09253467)Year: July 2021Volume: 117Issue:
DOI:10.1016/j.optmat.2021.111125Language: English
Abstract
Organic light-emitting diodes based on multiple-quantum-well (MQW) structures consisting of regular placement of N, N′-Di (1-naphthyl)-N, N′-diphenyl-(1,1′-biphenyl)-4,4′-diamine (NPB) and bathocuproine (BCP) layers have been fabricated. The findings show that the QWs structure can intensely raise the quality of OLED results. Compared with conventional device performance without MQW structure, the external quantum efficiency, current efficiency, and luminance of the OLED with two periods of QWs have been severely increased up to 1.77%, 25.40 cd/A, and 8686 cd/m2, respectively. These improvements in results are attributed to the enhanced hole-electron balance, owing to utilizing the MQW structure. © 2021 Elsevier B.V.