Chapter New Generation of High Efficient OLED Using Thermally Activated Delayed Fluorescent Materials

The search for efficient materials for organic light emitting diodes is one of the most imperative research area. The focus is to obtain a bright large area emitter, limited by the low internal quantum efficiency of conventional organic emitters. Recently, a new generation of the organic materials (...

Description complète

Enregistré dans:
Détails bibliographiques
Auteur principal: Pereira, Luiz (auth)
Autres auteurs: Kumar, Manish (auth), Ribeiro, Miguel (auth)
Format: Électronique Chapitre de livre
Langue:anglais
Publié: InTechOpen 2018
Sujets:
Accès en ligne:OAPEN Library: download the publication
OAPEN Library: description of the publication
Tags: Ajouter un tag
Pas de tags, Soyez le premier à ajouter un tag!
Description
Résumé:The search for efficient materials for organic light emitting diodes is one of the most imperative research area. The focus is to obtain a bright large area emitter, limited by the low internal quantum efficiency of conventional organic emitters. Recently, a new generation of the organic materials (TADF) with a theoretical internal quantum efficiency up to 100%, opened new frameworks. However, significant challenges persist to achieve full understanding of the TADF mechanism and to improve the OLEDs stability. Starting from the photo-physical analysis, we show the relationship with the molecular electrical carrier dynamics and internal quantum efficiencies. The OLED structure, fabrication, and characterization are also discussed. Several examples for the full color emitters are given. Special emphasis on experimental results is made, showing the major milestones already achieved in this field.
ISBN:intechopen.76048
Accès:Open Access