889573-58-4

Upstream product

• 111-83-1 1-bromo-octane 
• 84632-54-2 3,6-bis(4-bromophenyl)-2,5-dihydropyrrolo[3, 4-c]pyrrole-1,4-dione 
• 623-00-7 4-bromobenzenecarbonitrile 

Downstream Products

• 1196890-64-8 3,6-bis(4-(diphenylamino)phenyl)-2,5-dioctylpyrrolo[3,4-c]pyrrole-1,4-dione 
• 1196890-66-0 3,6-bis-[(4'-diphenylamino)biphenyl-4-yl]-2,5-dioctylpyrrolo[3,4-c]pyrrole-1,4-dione 
• 1617544-74-7 2,5-dioctyl-3,6-bis(4-(1,2,2-triphenylvinyl)phenyl)pyrrolo[3,4-c]pyrrole-1,4(2H,5H)-dione 
• 1617544-77-0 3,6-bis[4-(4-{2-[4-(dimethylamino)phenyl]-1,2-diphenylethenyl}phenyl)phenyl]-2,5-dioctyl-1H,2H,4H,5H-pyrrolo[3,4-c]pyrrole-1,4-dione 
• 1617544-76-9 3,6-bis(4'-(1-(4-(dimethylamino)phenyl)-2,2-diphenylvinyl)biphenyl-4-yl)-2,5-dioctylpyrrolo[3,4-c]pyrrole-1,4(2H,5H)-dione 
• 1617544-75-8 2,5-dioctyl-3,6-bis(4'-(1,2,2-triphenylvinyl)biphenyl-4-yl)pyrrolo[3,4-c]pyrrole-1,4(2H,5H)-dione 

Relevant academic research and scientific papers

9-Anthryl-capped DPP-based dyes: Aryl spacing induced differential optical properties

While pyrrolo[3,4-c]pyrrole-1,4(2H,5H)-diones (DPPs) are extensively used as building blocks in field-effect transistors and photovoltaic active layers, less attention has been paid to the construction of novel optical materials. In this work, we have des

Conjugates of tetraphenylethene and diketopyrrolopyrrole: Tuning the emission properties with phenyl bridges

Diketopyrrolopyrrole (ACQ-gen) and tetraphenylethenes (AIE-gen) are linked together with phenyl bridges. The derivatives show substantially enhanced and red-shifted emission in the solid state.

Synthesis and electroluminescence properties of fluorene-co-diketopyrrolopyrrole-co-phenothiazine polymers

A series of fluorene-co-diketopyrrolopyrrole(DPP)-co-phenothiazine polymers, named as Flu-DPP-Phen, were synthesized by a palladium-catalyzed Suzuki coupling reaction with different feed ratios among 9,9-dihexylfluorene-2,7-bis(trimethylene boronate), 2,5-dioctyl-3,6-bis(4-bromophenyl)pyrrolo[3,4-c]pyrrole-1,4-dione, and 3,7-dibromo-10-octylphenothiazine. Their chemical structures and compositions were confirmed by 1H NMR and elemental analysis. These terpolymers were found to be thermally stable and readily soluble in common organic solvents. Absorption and photoluminescence (PL) properties of Flu-DPP-Phen exhibit regular change with increasing of DPP contents in the terpolymers. Electroluminescence (EL) properties of all the terpolymers were characterized with the device configurations of ITO/PEDOT/terpolymer/Ba/Al and ITO/PEDOT/PVK/terpolymer/Ba/Al. Owing to exciton confinement on the narrow band gap DPP unit, the emission of fluorene segments is quenched completely with very low content of DPP (0.2 mol%). The EL spectra of all the terpolymers show exclusive long-wavelength emission originating from DPP units, which implied that the energy transfer in the terpolymer is very efficient. EL colors of the terpolymers vary from orange to red, the maximum emission is gradually red-shifted from 582 nm to 600 nm. The best EL performance was achieved by Flu-DPP-Phen(50:30:20) with maximum external quantum efficiency (EQE) of 0.25% and maximum brightness of 259 cd/m2 in the device configuration of ITO/PEDOT/PVK/terpolymer/Ba/Al. The preliminary EL results proved that DPP units could effectively improve the electron affinity, and phenothiazine units could significantly enhance the hole injection ability, which resulted in the remarkable improvement of EQE.

Diphenylamine end-capped 1,4-diketo-3,6-diphenylpyrrolo[3,4-c]pyrrole (DPP) derivatives with large two-photon absorption cross-sections and strong two-photon excitation red fluorescence

Novel donor-π-bridge-acceptor-π-bridge-donor (D-π-A-π-D)-type 1,4-diketo-3,6-diphenylpyrrolo[3,4-c]pyrrole (DPP) derivatives with end-capping diphenylamine groups have been synthesized and shown to exhibit large two-photon absorption cross-sections over a wide range of wavelengths with strong two-photon excitation red fluorescence.

Diketopyrrolopyrrole-containing polyfluorenes: Facile method to tune emission color and improve electron affinity

A series of novel diketopyrrolopyrrole (DPP)-containing polyfluorenes, coded as PF-DPP01-50, were synthesized through palladium-catalyzed Suzuki polycondensation with different feed ratios between fluorene dibromide and DPP dibromide. Their chemical structures and compositions were verified by 1H NMR and elemental analysis. DSC and TGA results show that they have good to excellent thermal stabilities. Absorption and photoluminescence (PL) properties of PF-DPP01 -50, determined in both CHCl3 solutions and thin films, exhibit regular changes with increasing of DPP contents in copolymers, with absolute PL efficiencies being in the range 13.8-26.9%. Electroluminescence (EL) properties of all the copolymers were investigated with device configurations of ITO/PEDOT/copolymer/Ba/Al and ITO/PEDOT/copolymer/Al. A very low content of DPP units (1 %) is needed to achieve full energy transfer from fluorene segments to DPP units; hence, exclusive emission of the latter occurs. EL colors of these copolymers vary from orange to red, corresponding to CIE coordinates from (0.52, 0.46) to (0.62, 0.37). The best performance was achieved by orange-emitting PF-DPP01 in device configuration of ITO/PEDOT/copolymer/Ba/Al, with maximum EQE of 0.45% and maximum brightness of 520 cd/m2. Devices with configuration of ITO/PEDOT/copolymer/Al prove that DPP units can effectively improve the electron affinity of these copolymers. One of these devices (ITO/PEDOT/PF-DPP25/Al) can realize maximum EQE of 0.14% and maximum brightness of 127 cd/m2. Therefore, color-tuning (red-shift) and improvement of electron affinity can be achieved at the same time through incorporation of DPP units.