Molecular engineering of anthracene-based emitters for highly efficient nondoped deep-blue fluorescent OLEDs

Abstract

Deep-blue anthracene-based emitters for efficient nondoped fluorescent OLEDs.

A multifunctional luminescent material based on quinoxaline and triphenylamine groups: polymorphism, mechanochromic luminescence, and applications in high-efficiency fluorescent OLEDs

“…6 To achieve various emission colors and photophysical properties, sophisticated synthesis and purification processes have to be used. 7–9 Polymorphism, which involves the existence of two or more crystalline configurations in a single emitter, can be utilized to achieve high-contrast emission colors and to simultaneously adjust the triplet-exciton behavior to achieve high efficiency. 10–13 Additionally, it is an effective way to investigate crystal-packing and structure–property relationships.…”

A Dimeric π‐Stacking of Anthracene Inducing Efficiency Enhancement in Solid‐State Fluorescence and Non‐Doped Deep‐Blue Triplet–Triplet Annihilation Organic Light‐Emitting Diodes

“…The delayed component fraction slowly decreased as the voltage increased, probably due to a severe triplet exciton quenching at high driving voltages, as observed in many TAA‐OLEDs. [ 15d,30,38 ] To gain more evidence on the TTA process, the EL decays of TPNACN ‐ and TPBACN ‐based devices at 9 V were acquired, and the logarithm of the transient EL intensity was plotted as a function of the logarithm of time. As depicted in Figure 5b, the slopes of the plots at the long‐life region are −2.07 and −1.85 for TPNACN ‐ and TPBACN ‐based devices, respectively.…”

Synthesis, photophysical, thermal properties and X-Ray studies of novel organic dyes bearing Inden-1-ylidene and fluorene

“…Usually, in condensed media, pyrene and its derivatives have a tendency to produce excimers [23,24]. On the other hand, anthracene derivatives have attracted many researchers due to their exceptional PL and electroluminescence (EL) properties, wide-energy gap, and good thermal stabilit y, making these derivatives appealing as blue-emitting materials in OLEDs [25][26][27].…”