Synthesis of Diimidazolylstilbenes as n‐Type Blue Fluorophores: Alternative Dopant Materials for Highly Efficient Electroluminescent Devices

Two new n‐type diimidazolylstilbenes as blue‐fluorescent dopant materials are synthesized and characterized. Blue‐fluorescent devices based on these two compounds as the dopants reveal outstanding external quantum efficiencies (EQEs) (current efficiencies) of 7.8% (10.4 cd A−1) and 7.7% (7.9 cd A−1)...

Full description

Saved in:
Bibliographic Details
Published inAdvanced materials (Weinheim) Vol. 24; no. 43; pp. 5867 - 5871
Main Authors Chou, Ho‐Hsiu, Chen, Yi‐Hsiang, Hsu, He‐Pei, Chang, Wen‐Hsin, Chen, Yu‐Han, Cheng, Chien‐Hong
Format Journal Article
LanguageEnglish
Published Weinheim WILEY‐VCH Verlag 14.11.2012
Subjects
dopant materials
fluorescence
Fluorescent Dyes - chemistry
imidazole
Imidazoles - chemistry
Luminescent Measurements - instrumentation
n‐type materials
organic light‐emitting diodes (OLEDs)
Quantum Theory
Stilbenes - chemical synthesis
Stilbenes - chemistry
Online AccessGet full text

Cover

More Information
Summary:Two new n‐type diimidazolylstilbenes as blue‐fluorescent dopant materials are synthesized and characterized. Blue‐fluorescent devices based on these two compounds as the dopants reveal outstanding external quantum efficiencies (EQEs) (current efficiencies) of 7.8% (10.4 cd A−1) and 7.7% (7.9 cd A−1) with Commission internationale de l'Eclairage (CIE) co‐ordinates of (0.14, 0.15) and (0.15, 0.11).
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.201202222