18436-22-1

Upstream product

• 35578-47-3 4,4'-dibromobenzil 
• 122-39-4 diphenylamine 
• 79-37-8 oxalyl dichloride 
• 603-34-9 N,N-diphenylaminobenzene 

Downstream Products

• 787640-67-9 2,3-bis(4-diphenylaminophenyl) quinoxaline 

Relevant academic research and scientific papers

Rewritable multilevel memory performance of a tetraazatetracene donor-acceptor derivative with good endurance

A new tetraazatetracene derivative, 2,3-[4,4'- bis(N,N-diphenylamino)benzyl]-5,12-bis[(triisopropylsilyl)ethynyl]- 1,4,6,11-tetraazatetracene (TPAs-BTTT), displays rewritable multilevel memory behavior, which is probably induced by multielectron intramolecular charge transfer (CT).

D-A structured high efficiency solid luminogens with tunable emissions: Molecular design and photophysical properties

Fabrication of efficient solid luminogens with tunable emission is both fundamentally significant and technically important. Herein, based on our previous strategy for the construction of efficient and multifunctional solid luminogens through the combinat

Synthesis, structure, physical properties and OLED application of pyrazine-triphenylamine fused conjugated compounds

In this paper, several donor-acceptor compounds using pyrazine and triphenylamine as building units have been synthesized and fully characterized. The physical properties and theoretical calculations were also investigated. In addition, the OLED devices u

Electropolymerization of V-shape D-A-D type monomers for efficient and tunable electrochromics

Five novel donor-acceptor-donor (D-A-D) type monomers (VQ1 ~ VQ5) with a common V-shape configuration have been developed and further electropolymerized for electrochromic applications. The monomers were designed by introducing two triphenylamine groups into the 2- and 3- position of the quinoxaline derivates, respectively. These redox-active monomers could be electrodeposited robustly on the ITO electrodes in an electrolyte solution via the oxidative coupling reactions between triphenylamine radical cations. The obtained thin polymer films (PVQ1 ~ PVQ5) exhibited reversible redox behaviours and obvious color changes upon voltage variation. All these polymers exhibited excellent electrochromic performances involving high optical contrast (over 70%), short response time (less than 2 s) and high coloration efficiency (over 200 cm2 C?1). Moreover, the optical properties of these polymers in both neutral state and oxidation state can be tuned by variation of the additional substituents on the quinoxaline parts, respectively.

Optimizing Charge Transfer and Out-Coupling of A Quasi-Planar Deep-Red TADF Emitter: towards Rec.2020 Gamut and External Quantum Efficiency beyond 30 %

Herein, we report a deep-red TADF emitter pCNQ–TPA, composed of quinoxaline-5,8-dicarbonitrile (pCNQ) acceptor and triphenylamine (TPA) donor. pCNQ–TPA supported its OLED with desired CIE coordinates of (0.69, 0.31) and the record maximum external quantum efficiency of 30.3 %, which is the best red TADF diode with Rec.2020 gamut for UHDTV. It is showed that through tuning pCNQ–TPA doping concentration, intra- and inter-molecular charge transfer are balanced to synchronously improve emission color saturation and TADF radiation, and remedy aggregation-induced quenching, rendering photoluminescence quantum yield (PLQY) reaching 90 % for deep-red emission peaked at ≈690 nm. Quasi-planar structure further endows pCNQ–TPA with an improved horizontal ratio of emitting dipole orientation, which increases light out-coupling ratio to 0.34 for achieving the state-of-the-art device efficiencies.

Cyano quinoxaline red light thermal excitation delayed fluorescence material, synthesis method and application thereof

The invention provides a cyano quinoxaline red light thermal excitation delayed fluorescence material. The efficient red light TADF material is prepared by designing a molecular structure, modifying molecules with aromatic amine groups or aromatic phosphi

LUMINOGENS FOR BIOLOGICAL APPLICATIONS

A compound comprises a donor and an acceptor, wherein at least one donor ( "D" ) and at least one acceptor ( "A" ) may be arranged in an order of D-A; D-A-D; A-D-A; D-D-A-D-D; A-A-D-A-A; D-A-D-A-D; and A-D-A-D-A. The compound may be selected from the group consisting of: MTPE-TP, MTPE-TT, TPE-TPA-TT, PTZ-BT-TPA, NPB-TQ, TPE-TQ-A, MTPE-BTSe, DCDPP-2TPA, DCDPP-2TPA4M, DCDP-2TPA, DCDP-2TPA4M, TTS, ROpen-DTE-TPECM, and RClosed-DTE-TPECM. The compound may be used as a probe and may be functionalized with special targeted groups to image biological species. As non-limiting examples, the compound may be used in cellular cytoplasms or tissue imaging, blood vessel imaging, in vivo fluorescence imaging, brain vascular imaging, sentinel lymph node mapping, and tumor imaging, and the compound may be used as a photoacoustic agent.

TRANSITION-METAL CHARGE-TRANSPORT MATERIALS, METHODS OF FABRICATION THEREOF, AND METHODS OF USE THEREOF

Briefly described, embodiments of this disclosure include transition-metal charge-transport materials, methods of forming transition-metal charge-transport materials, and methods of using the transition-metal charge-transport materials.