Acridine-Triphenylamine Based Hole-Transporting and Hole-Injecting Material for Highly Efficient Phosphorescent-Based Organic Light Emitting Diodes

Abstract

Featured Application: We have idenfied our synthesized TPA-1A material can apply as hole injecting and hole transporting material for PhOLEDs applications.Abstract: In this study, triphenylamine-based hole-transporting material 4-(9,9-diphenylacridin-10(9H)-yl)-N-(4-(9,9-diphenylacridin-10(9H)-yl) phenyl)-N-phenylaniline (TPA-1A) was designed and synthesized by using single-step Buchwald-Hartwig coupling reaction with higher yield percentage of 76%. Our synthesized TPA-1A showed excellent thermal stability, with a higher glass transition temperature of 176 • C and decomposition temperature of 474 • C at 5% weight reduction. TPA-1A based green phosphorescent organic light emitting diodes (PhOLED) device was fabricated to investigate the device properties and compare it with the similar reference N,N -Di(1-naphthyl)-N,N -diphenyl-(1,1 -biphenyl)-4,4 -diamine (NPB)based device. The TPA-1A-based PhOLED demonstrated an excellent current and power efficiency of 49.13 cd/A and 27.56 lm/W, respectively. Moreover, TPA-1A demonstrated better hole injection efficiencies as well. The overall efficiencies were better than the reference NPB-based device.

Solution-Processable meso-Triarylamine Functionalized Porphyrins with a High Mobility and ON/OFF Ratio in Bottom-Gated Organic Field-Effect Transistors

“…17 TAA has strong donor properties, and its unique propellerlike geometry makes it a widely studied material. 18 It has been vastly used in organic electronics and optoelectronic devices. Suitably functionalized TAA-based small molecules are reported with high mobility values.…”

“…Like porphyrins, triarylamine (TAA)-based molecules are also being extensively explored as the active layer of OFETs . TAA has strong donor properties, and its unique propellerlike geometry makes it a widely studied material . It has been vastly used in organic electronics and optoelectronic devices.…”

Triazine-Acceptor-Based Green Thermally Activated Delayed Fluorescence Materials for Organic Light-Emitting Diodes

“…The emission layer is made of two components, namely, host and dopant materials. The dopant material, at a suitable doping concentration, is usually doped with a high–triplet energy host material to support effective energy balance and emit colors by a proper charge recombination [9,10,11,12,13,14,15,16,17,18,19].…”

Cationic and Betaine-Type Boronated Acridinium Dyes: Synthesis, Characterization, and Photocatalytic Activity

“…3−11 From the practical point of view, significant efforts have been devoted to utilizing acridine dyes as sensor materials for detection of anions 12−15 as well as for biolabeling purposes. 16−18 There is also an increased interest in their use as components for the construction of organic light-emitting diodes (LEDs) 19−22 and solar cells. 23 Furthermore, selected derivatives exhibit potent chemiluminescence, making them useful in clinical diagnostics.…”