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Usage

Uses

Used in the Synthesis of Dye-Sensitized Solar Cells:
7-Bromo-1,2,3,3a,4,8b-hexahydro-4-(4-methylphenyl)cyclopent[b]indole is used as a key component in the synthesis of dye-sensitized solar cells (DSSCs). DSSCs are a type of photovoltaic cell that relies on a photosensitizer, such as 7-BroMo-1,2,3,3a,4,8b-hexahydro-4-(4-Methylphenyl)cyclopent[b]indole, to absorb sunlight and generate electricity. The unique molecular structure of 7-Bromo-1,2,3,3a,4,8b-hexahydro-4-(4-methylphenyl)cyclopent[b]indole allows it to efficiently absorb light and transfer electrons, making it an effective chromophore for DSSCs.
In the field of renewable energy, 7-Bromo-1,2,3,3a,4,8b-hexahydro-4-(4-methylphenyl)cyclopent[b]indole is used as a chromophore for the development of dye-sensitized solar cells. Its ability to absorb light and transfer electrons efficiently makes it a valuable component in the creation of these solar cells, which have the potential to offer a sustainable and cost-effective energy solution.
The innovative use of 7-Bromo-1,2,3,3a,4,8b-hexahydro-4-(4-methylphenyl)cyclopent[b]indole in the synthesis of DSSCs highlights its potential as a versatile and valuable compound in the field of materials science. As research continues, it is likely that additional applications for 7-BroMo-1,2,3,3a,4,8b-hexahydro-4-(4-Methylphenyl)cyclopent[b]indole will be discovered, further expanding its utility and significance in various industries.

Upstream product

• 273220-33-0 4-(p-tolyl)-1,2,3,3a,4,8b-hexahydrocyclopenta[b]indole 
• 80278-94-0 1,2,3,3a,4,8b-hexahydrocyclopent[b]indole 

Downstream Products

• 1379684-11-3 C₅₄H₆₇NO₂Si₂ 
• 1379684-14-6 C₄₉H₅₉NOSi₂ 
• 1379684-17-9 C₄₇H₅₁NOSi 
• 1379684-23-7 C₅₀H₅₂N₂O₂Si 
• 1379684-26-0 C₅₁H₅₂N₂O₂ 
• 1379684-08-8 7-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-4-(p-tolyl)-1,2,3,3a,4,8b-hexahydrocyclopenta[b]indole 

Relevant academic research and scientific papers

Porphyrin sensitizers with modified indoline donors for dye-sensitized solar cells

As a strong electron donor, indoline has been used in developing organic sensitizers for fabricating efficient dye-sensitized solar cells. Herein we report porphyrin dyes based on modified indoline donors. Firstly, XW29 and XW31 featured with a methylphenyl-substituted indoline and a bulkier dialkylfluorene-substituted indoline, respectively, are synthesized. XW31 exhibits a Jsc of 22.06 mA cm-2 as compared with that of 21.26 mA cm-2 for XW29. Consequently, XW31 achieves a higher power conversion efficiency of 10.46% than that of 10.14% for XW29. On this basis, to further broaden the spectral response, a benzothiadiazole (BTD) unit is incorporated as the auxiliary electron acceptor to obtain XW30 and XW32, respectively. The IPCE spectra are thus successfully extended to 850 nm. However, due to possibly aggravated dye aggregation, charge recombination and less effective dye regeneration induced by the BTD unit, moderate efficiencies of ca. 8.6% are obtained. Through coadsorption, elevated efficiencies of ～9.9% are achieved for XW30 and XW32. These results provide further insights into developing efficient porphyrin dyes by combining the dialkylfluorene moiety with the indoline donor.

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.

Di-thiazolyl-benzodiazole based sensitizers and their use in photovoltaic cell

Described herein are D-π-A type sensitizers of the formula (I) or (II) having a novel central π-conjugated unit di-thiazolyl-benzodiazole and dye-sensitized electrodes including a substrate having an electrically conductive surface, an oxide semiconductor film formed on the conductive surface, and the above sensitizer of formula (I) or (II), as specified above, supported on the film. A solar cell includes the above electrode, a counter electrode, and an electrolyte deposited there between. The sensitizers of formula (I) and (II) efficiently sensitize the semiconductor materials and show a high solar to electricity conversion efficiency.

Donor-acceptor dyes incorporating a stable dibenzosilole π-conjugated spacer for dye-sensitized solar cells

Four novel organic dyes including three based on dibenzosilole (YS01-03) and one based on fluorene (YS04) were synthesized, and their photophysical properties and dye-sensitized solar cell (DSC) performances were characterized. The silicon-containing dibenzosilole-based dyes (YS01-03) were superior to the carbon analogue fluorene-based dye YS04 in incident-photon-to-current conversion efficiency (IPCE), and total solar-to-electric conversion efficiency (η), with YS03, which has the bulkiest and most branched electron donor group, achieving the highest η of 5.07% compared to 2.88% of YS04. To better understand how silicon influences the excited state oxidation potentials (S +/*) and absorption maxima (λmax), the equilibrium molecular geometries of dyes YS01-04 were calculated using density functional theory (DFT) utilizing B3LYP energy functional and DGDZVP basis set. It was shown that the torsion angles (1 and 2) across the biphenyl linkages of dyes containing silicon (YS01-03) were less twisted than that of the silicon-free dye (YS04), which enhanced the π-π* overlap, and that translated into photocurrent enhancements in the silicon-containing dyes YS01-03. Moreover, the vertical electronic excitations and S+/* of dyes YS01-04 were studied using different long-range corrected time-dependent DFT methods, including CAM-B3LYP, LC-BLYP, WB97XD, and LC-wPBE at the basis set level DGDZVP. Excellent agreement between the calculated, using CAM-B3LYP/DGDZVP, and experimental results was found. The Royal Society of Chemistry 2012.