23034-60-8

Upstream product

• 4181-05-9 4-(diphenylamino)benzaldehyde 
• 98-86-2 acetophenone 

Downstream Products

• 1292770-00-3 3-cyano-4-(4-diphenylaminophenyl)-2-(2-phenylindol-3-yl)-6-phenylpyridine 
• 1292769-97-1 3-cyano-4-(4-diphenylaminophenyl)-2-(5-methoxyindol-3-yl)-6-phenylpyridine 
• 1292770-02-5 3-cyano-4-(4-diphenylaminophenyl)-2-(1-methylindol-3-yl)-6-phenylpyridine 
• 1292769-96-0 3-cyano-4-(4-diphenylaminophenyl)-2-(indol-3-yl)-6-phenylpyridine 
• 1292769-98-2 3-cyano-4-(4-diphenylaminophenyl)-2-(2-methylindol-3-yl)-6-phenylpyridine 
• 1292770-01-4 2-(5-bromoindol-3-yl)-3-cyano-4-(4-diphenylaminophenyl)-6-phenylpyridine 
• 1292769-99-3 3-cyano-4-(4-diphenylaminophenyl)-2-(7-methylindol-3-yl)-6-phenylpyridine 

Relevant academic research and scientific papers

Narrow-band red-emitting phosphor with negligible concentration quenching for hybrid white LEDs and plant growth applications

Narrow-band red-emitters are the key to solving problems encountered by the current white LED technology. In this context, a series of new red-emitting Li3BaSrLa3(MoO4)8:Eu3+phosphors were synthesized

The solvatochromism and aggregation-induced enhanced emission based on triphenylamine-propenone

Three new donor-π bridge-acceptor (D-π-A) compounds based on triphenylamine-propenone, namely 4-(1-phenylprop-2-en-1-one-3-yl)triphenylamine (PhO-TPA), 4-(1-(pyridin-2-yl)prop-2-en-1-one-3-yl)triphenylamine (PyO-TPA) and 4,4′,4′″-(tri(1-(pyridin-2-yl)prop

Narrow band red emitting europium complexes and their application in smart white LEDs and vapoluminescent sensors

Narrow band red emitting phosphors play a vital role in high performance smart white LEDs. In this context, a series of new Eu(iii) complexes have been synthesized with neutral ligands (C1-functionalised phenanthro-imidazole-based ancillary ligands substituted with phenyl moieties (m-CF3, p-CF3, p-CH3and 1-naphthyl and 2-naphthyl group)) and dibenzoylmethane (DBM) as an anionic ligand. All the newly synthesized Eu-complexes showed extremely narrow band red emission due to the electric dipole transition (5D0-7F2, both in solid and thin film) with high quantum efficiency. A combined experimental and theoretical study indicates that the energy transfer from the ligand to the metal ion is complete. A temperature dependent photoluminescence (PL) study in solution reveals that the red emission is retained (only the ED (5D0-7F2) intensity decreases with increasing temperature). Red LEDs and hybrid white LEDs were fabricated by using a near UV LED chip with europium complexes and a near UV/blue LED conjugated with a yellow organic dye and europium complex mixture, respectively. Hybrid white LEDs (Eu(DBM)3Phen-pCN-pCF3+ yellow organic dye) showed superior CRI (84%) and CIE (x= 0.36,y= 0.39) values (near UV based) and CRI (82%) and CIE (x= 0.34,y= 0.36) values (blue LED based). In addition, the studied Eu-complexes herein showed excellent reversible on-off-on luminescence behavior with exposure to acid-base vapours. Detailed spectroscopic investigation reveals that the protonation of the Eu-complexes (ligands) plays a key role in the on-off-on luminescence.

Zero-concentration quenching: A novel Eu3+based red phosphor with non-layered crystal structure for white LEDs and NaSrY(MoO4)3:Sm3+based deep-red LEDs for plant growth

Oxide based highly efficient narrow band red emitting phosphors are still a bottleneck in white LED applications. Trivalent europium ion based phosphors could be a better choice, however their weak oscillator strength restricts their use in white light em

Electron transport and ultrafast spectroscopic studies of new methanofullerenes bearing a heteroatom in the exohedral chain

Fullerene derivatives (C60 and C70) have been widely used in excitonic solar cells due to their exceptional electron accepting properties and low reorganization energies. In recent years, a wide variety of fullerene-based n-Type materials have been developed, showing tremendous potential in the field of organic photovoltaics. However, only a few studies have been performed on heteroatom bearing methanofullerenes and their opto-electronic properties for use as n-Type organic semiconductor materials. In the present study, we report the synthesis of two mono-substituted methanofullerene derivatives, i.e., C60-Th (Product 1) and C60-TPA (Product 2), with a heteroatom (S and N, respectively) in the exohedral chain attached via an ethylene linker to the cyclopropane ring, and a comprehensive study of their photophysical and electrochemical properties. The methanofullerene derivatives have been synthesized using an amine-Assisted cycloaddition (AACA) reaction method. The structures of the synthesized products were established via different spectroscopic techniques. Reasonable quenching efficiencies were observed with respect to the fluorescence emission in mixtures with the donor polymer P3HT using both methanofullerenes. The electron transport properties were evaluated through fabricating electron-only devices, and 10 and 6 times higher mobilities were found compared to PC61BM for Products 1 and 2, respectively. Finally, the charge transfer properties were evaluated in mixtures with P3HT via transient absorption spectroscopy to study the ultrafast charge separation and formation of long-lived charge-separated states. The study suggests that both the products show excellent electron transport properties and the formation of longer-lived charge-separated states in mixtures with the donor polymer for use as n-Type materials for organic solar cells.