1293967-22-2

Upstream product

• 1250863-85-4 7-bromo-1,2,3,3a,4,8b-hexahydro-4-(4-methylphenyl)-cyclopent-[b]indole 
• 121-43-7 Trimethyl borate 
• 80278-94-0 1,2,3,3a,4,8b-hexahydrocyclopent[b]indole 

Downstream Products

• 1293967-24-4 C₃₃H₂₈N₂O₄ 
• 1293967-26-6 C₃₂H₂₆N₂O₄ 
• 1420884-61-2 C₄₉H₄₇N₃O₄ 
• 1420884-60-1 C₄₄H₄₄BrN₃O₂ 

Relevant academic research and scientific papers

D-A-π-A featured sensitizers containing an auxiliary acceptor of benzoxadiazole: Molecular engineering and co-sensitization

Two novel D-A-π-A organic sensitizers (WS-24 and WS-26) incorporating a benzoxadiazole (BOD) unit are synthesized for dye sensitized solar cells. An additional n-hexylthiophene unit is incorporated into WS-26 to decrease unfavourable dye aggregation, thus

Near-infrared absorbing isoindigo sensitizers: Synthesis and performance for dye-sensitized solar cells

A series of isoindigo-based metal-free organic sensitizers have been synthesized and used in dye-sensitized solar cells (DSSCs). Measurement data indicated that the fine-tuning of the donor or linker moiety could conveniently adjust the highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) energy levels. All DSSCs sensitized by three new dyes displayed an efficient panchromatic spectra response with the improved light-harvesting capability in near-infrared region, in which a highest photovoltaic conversion efficiency of 5.56% was obtained by the DSSCs of benzene-bridge isoindigo-based sensitizer, with a short-circuit photocurrent density (Jsc) of 13.16 mA/cm2, an open-circuit photovoltage (Voc) of 582 mV, and a fill factor (ff) of 0.73.

Light soaking effects on charge recombination and device performance in dye sensitized solar cells based on indoline-cyclopentadithiophene chromophores

The synthesis, characterization, electrochemical and photophysical properties of a novel D-π-A indoline organic dye, VCL01, are described. Its performance characteristics in dye sensitized solar cell (DSC) devices under standard AM 1.5G illumination are also investigated. VCL01 incorporates a cyclopentadithiophene unit as the π-bridge between the indoline donor and cyanoacetic acceptor units. In comparison with the reference dye LS-1 containing only one thiophene unit in the π-bridge, VCL01 shows a 40 nm red shift in adsorption, an increase in molar absorptivity and a 0.17 V lower oxidation potential, all consistent with the more conjugated nature of this sensitizer. The efficiencies of VCL01 and LS-1 DSC devices were 4.81% and 6.23%, respectively, which upon >100 min continuous light soaking under AM 1.5G illumination rose to 7.21% and 6.95%, representing an unprecedented 50% increase in efficiency for the VCL01 device. This increase is overwhelmingly due to an increase in photocurrent but, remarkably, Voc also increases by 50 mV upon illumination reflected in transient photovoltage data which indicate that electron lifetime increases considerably also. Time-correlated single photon counting data indicate that the light soaking effect can be partly attributed to improved TiO2/dye interaction leading to enhanced electron injection.