Cool white light-emitting three stack OLED structures for AMOLED display applications

Beitrag in einer Fachzeitschrift


Details zur Publikation

Autor(en): Springer R
Zeitschrift: Optics Express
Jahr der Veröffentlichung: 2016
ISSN: 1094-4087


Abstract

his paper demonstrates 2-stack and 3-stack white organic light-emitting diodes (WOLEDs) with fluorescent blue and phosphorescent yellow emissive units. The 2-stack and 3-stack WOLED comprises blue-yellow and blue-blue-yellow (blue-yellow-blue) combinations. The position of the yellow emitter and possible cavity lengths in different stack architectures are theoretically and experimentally investigated to reach Commission Internationale de L’Eclairage (CIE) coordinates of near (0.333/0.333). Here, a maximum external quantum efficiency (EQE) of 23.6% and current efficiency of 62.2 cd/A at 1000 cd/m2 as well as suitable CIE color coordinates of (0.335/0.313) for the blue-blue-yellow 3-stack hybrid WOLED structure is reported. In addition, the blue-yellow-blue 3-stack architecture exhibits an improved angular dependence compared to the blue-blue-yellow structure at a decreased EQE of 19.1%.


FAU-Autoren / FAU-Herausgeber

Springer, Ramon
Professur für Informatik (Numerische Simulation mit Höchstleistungsrechnern)

Zuletzt aktualisiert 2019-18-03 um 12:38