Efficiency enhancement of green organic light-emitting diode utilizing aromatic diamine/bathocuproine multiple quantum wells

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.

Automated summary

Based on the multiple-quantum-well (MQW) structure consisting of N, N'-Di (1-naphthyl)-N, N'-diphenyl-(1,1'-biphenyl)-4,4'-diamine (NPB) and bathocuproine (BCP) layers, organic light-emitting diodes have shown significantly improved performance in terms of external quantum efficiency, current efficiency, and luminance. These enhancements are attributed to the enhanced hole-electron balance achieved through utilizing the MQW structure.