830325-93-4

Upstream product

• 15155-41-6 4,7-dibromobenzo[c][1,2,5]thiadiazole 
• 201802-67-7 4-(diphenylamino)phenyl boronic acid 
• 273-13-2 benzo[1,2,5]thiadiazole 
• 36809-26-4 4-N,N-diphenylamino-1-bromobenzene 
• 408359-97-7 [4-(5,5-dimethyl[1,3,2]dioxaborinan-2-yl)phenyl]diphenylamine 
• 267221-88-5 4-(diphenylamino)phenylboronic pinacol ester 

Downstream Products

• 926040-34-8 4-(4-(diphenylamino)phenyl)-7-(4-(N-phenyl-N-(4-methoxy)phenylamino)phenyl)-2,1,3-benzothiadiazole 
• 1253294-11-9 4-(5-(4-(N-phenyl-N-(4-methoxyphenyl)amino)phenyl)-3,4-ethylenedioxythien-2-yl)-7-(4-(diphenylamino)phenyl)-2,1,3-benzothiadiazole 
• 1253294-14-2 C₇₃H₆₄Br₂N₄O₃S₂ 
• 1253294-05-1 4-(5-(4-(N-phenyl-N-(4-hydroxyphenyl)amino)phenyl)-3,4-ethylenedioxythien-2-yl)-7-(4-(diphenylamino)phenyl)-2,1,3-benzothiadiazole 
• 1353557-95-5 C₉₀H₈₂N₆S₆ 
• 1510803-70-9 C₃₆H₂₅FeN₃S 
• 1510803-73-2 C₄₂H₂₉FeN₃S 
• 1510803-77-6 C₄₄H₂₉FeN₃S 
• 854516-37-3 5-[7-(4-diphenylaminophenyl)benzo[1,2,5]thiadiazol-4-yl]thiophene-2-carbaldehyde 
• 830325-94-5 4-(7-(4-(diphenylamino)phenyl)benzo[c][1,2,5]thiadiazol-4-yl)benzaldehyde 

Relevant academic research and scientific papers

V-type organic dye sensitizer and preparation method and application thereof

The invention discloses a V-type organic dye sensitizer, and belongs to the technical field of organic photoelectric functional materials. According to the V-type organic dye sensitizer, the moleculeadopts triphenylamine, phenothiazine and carbazole group

Efficient Organic Sensitizers with Pyridine-N-oxide as an Anchor Group for Dye-Sensitized Solar Cells

Five organic dyes with pyridine-N-oxide as the anchor group and electron acceptor have been synthesized and applied in dye-sensitized solar cells (DSSCs). Benzothiadiazole was introduced in the conjugation system to increase the electron withdrawing properties, FTIR spectra showed that the coordination was between the pyridine-N-oxide and the Br?nsted acid site on the TiO2surface. The relationship between different dye structures and the performance of the DSSCs was investigated systematically. The location of the thiophene unit was studied, and the direct linkage of benzothiadiazole with pyridine-N-oxide was beneficial to broaden the absorption. The donor–acceptor–acceptor-configured dye WL307, which has 2-ethylhexyloxy chains in the donor part, showed the best efficiency of 6.08 % under 100 mW cm?2light illumination. The dye series showed a fairly good stability during the one month test period.

Aryl-substituted unsymmetrical benzothiadiazoles: Synthesis, structure, and properties

A family of unsymmetrical donor-acceptor, ferrocenyl-substituted benzothiadiazoles of types D1-π-A-π-D2, D 1-π-A1-π-A2, D1-A-π-D 2, and D1-A1-A2-D2, bearing a variety of electron-donating and electron-withdrawing groups, were designed and synthesized. Their photophysical, electrochemical, and computational properties were explored, which show strong donor-acceptor interaction. The presence of electron-rich units anthracene (6f) and triphenylamine (6h), and an electron-deficient unit 1,1,4,4-tetracyanobuta-1,3- diene (TCBD) (9b) results in lowering of the band gap, which leads to a red shift of the absorption spectrum in these benzothiadiazole systems. The single crystal structures of 6c, 6g, 7a, and 7b are reported, which show marvelous supramolecular interactions.

Development of naphtho[1,2-b:5,6-b′]dithiophene based novel small molecules for efficient bulk-heterojunction organic solar cells

Two new small molecules with a rigid planar naphtho[1,2-b:5,6-b′] dithiophene (NDT) unit were designed and synthesized. Solution processed bulk-hetereojunction organic solar cells based on blends of the small molecules and [6,6]-phenyl-C71-buty

Highly efficient red electroluminescent polymers with dopant/host system and molecular dispersion feature: Polyfluorene as the host and 2,1,3-benzothiadiazole derivatives as the red dopant

By selecting polyfluorene as the polymer host, choosing 2,1,3-benzothiadiazole derivative moieties as the red dopant units and covalently attaching 0.3 mol% of the dopant units to the side chain of the polymer host, we developed a novel series of red electroluminescent polymers of dopant/host system with molecular dispersion feature. Their EL spectra exhibited predominant red emission from the dopant units because of the energy transfer and charge trapping from the polymer backbone to the dopant units. The emission wavelength of the polymers could be tuned by modifying the chemical structures of the dopant units. Single-layer devices (device configuration: ITO/PEDOT: PSS/polymer/Ca/Al) of these polymers emitted red light with a peak at 615 nm, a luminous efficiency of 5.04 cd A-1 and an external quantum efficiency of 3.47%, or emitted deep-red light with a peak at 650 nm, a luminous efficiency of 1.70 cd A-1 and an external quantum efficiency of 2.75%. Their high EL efficiencies were due to the energy transfer and charge trapping from the host to the dopant units as well as the molecular dispersion of the dopant units in the host. Increase of the dopant unit content led to increased turn-on voltages and decreased EL efficiencies of the resulting devices. The Royal Society of Chemistry.

Singlet oxygen generation by two-photon excitation of porphyrin derivatives having two-photon-absorbing benzothiadiazole chromophores

Porphyrin derivatives with four two-photon absorbing 2,1,3-benzothiadiazole chromophores at the meso positions provide large two-photon absorption cross-sections up to 735 GM as well as large quantum yields of one-photon singlet oxygen sensitization of ca

Novel 2,1,3-benzothiadiazole-based red-fluorescent dyes with enhanced two-photon absorption cross-sections

This paper reports the two-photon absorbing and orange-red fluorescence emitting properties of a series of new 2,1,3-benzothiadiazole (BTD)-based D-π-A-π-D-type and star-burst-type fluorescent dyes. In the D-π-A-π-D-type dyes 1-6, a central BTD core was connected with two terminal N,N-disubstituted amino groups via various.π-conjugated spacers. The star-burst-type dyes 8 and 10 have a three-branched structure composed of a central core (benzene core in 8 and triphenylamine core in 10) and three triphenylamine-containing BTD branches. All the BTD-based dyes displayed intense orange-red color fluorescence in a region of 550-689 nm, which was obtained by single-photonexcitation with good fluorescent quantum yield up to 0.98 as well as by two-photon excitation. Large two-photon absorption (TPA) cross-sections (110-800 GM) of these BID dyes were evaluated by open aperture Z-scan technique with a femtosecond Ti/sapphire laser. The TPA cross-sections of D-π-A-π-D-type dyes 2-6 with a benzene, thiophene, ethene, ethyne, and styrene moiety, respectively, as an additional π-conjugated spacer are about 1.5-2.5 times larger than that of 1c with only a benzene spacer. The TPA cross-sec- lions significantly increased in three-branched star-burst-type BTDs 8 (780 GM) with a benzene core and 10 (800 GM) with a triphenylamine core, which are about 3-5 times larger than those of the corresponding one-dimensional sub-units 9 (170 GM) and 11 (230 GM). respectively. The ratios of σ/ eπ between three-branched and one-dimensional dyes were 6.5:3.8 (for 8 and 9) and 6.0:4.0 (for 10 and 11). which are larger than those predicted simply on the basis of the chromophore number density (1:1). according to a cooperative enhancement of the two-photon absorbing nature in the three-branched system.

Organic dyes incorporating low-band-gap chromophores for dye-sensitized solar cells

(Figure Presented) Versatile dyes based on benzothiadiazole and benzoselenadiazole chromophores have been developed that perform efficiently in dye-sensitized solar cells. Power conversion efficiency of 3.77% is realized for a dye in which charge recombin

Strongly red-fluorescent novel donor-π-bridge-acceptor-π-bridge-donor (D-π-A-π-D) type 2,1,3-benzothiadiazoles with enhanced two-photon absorption cross-sections

Novel donor-π-bridge-acceptor-π-bridge-donor (D-π-A-π-D) type 2,1,3-benzothiadiazole fluorescent dyes connected to the N,N-diarylamino terminus via various type π-conjugate spacers exhibits large two-photon absorption cross-sections and high fluorescent quantum yields in orange-red color.

Photoinduced charge separation and charge recombination in [60]fullerene-(benzothiadiazole-triphenylamine) based dyad in polar solvents

The molecular dyad C60-(BTD-TPA) consisting of an electron donor triphenylamine-appended 2,1,3-benzothiadiazole chromophore (BTD-TPA) unit covalently linked to an electron acceptor [60]fullerene has been synthesized. The photoinduced electron t