Synthesis of Nitro-Functionalized A3B-Type Tetraphenylporphyrins Compounds and Potential Applications in Dye-Sensitized Solar Cells

2015 ◽  
Vol 748 ◽  
pp. 21-24
Author(s):  
Hui Li ◽  
Yuan Bin She ◽  
Hai Yan Fu ◽  
Ting Wen Jia
Keyword(s):  
Condensation Reaction ◽  
Dye Sensitized Solar Cells ◽  
High Yield ◽  
Synthesis Process ◽  
H Nmr ◽  
Melting Point Analysis ◽  
Point Analysis ◽  
Potential Applications ◽  
Optimum Reaction ◽  
Sensitized Solar Cells

An improved Adler pre-mixed method based on a TFA-catalyzed condensation reaction between aldehydes and pyrroles was developed to synthesize a series of nitro-functionalized A3B-type tetraphenylporphyrins, and all the structures of A3B-type tetraphenylporphyrins were characterized by melting point analysis, electronic absorption spectroscopy, infrared spectroscopy, high-resolution mass spectroscopy, 1H NMR spectroscopy, and elemental analysis. Several factors in the synthesis process were systematically investigated to establish the optimum reaction conditions, hereby obtaining the high yield of products.

Improved Synthesis of 5-(R-group)-10, 15, 20-tris(4-methylphenyl)porphyrins as Starting Compounds for the Preparation of Potential Sensitizer in Solar Cells

2015 ◽  
Vol 748 ◽  
pp. 97-100
Author(s):  
Ting Wen Jia ◽  
Yuan Bin She ◽  
Hai Yan Fu ◽  
Huan Chang
Keyword(s):  
Solar Cells ◽  
Mixed Solvents ◽  
Dye Sensitized Solar Cells ◽  
Synthetic Methods ◽  
High Yield ◽  
Side Reactions ◽  
H Nmr ◽  
Melting Point Analysis ◽  
Point Analysis ◽  
Group 10

This paper presented a simple and effective method for the synthesis of unsymmetrical meso-phenyl-substituted porphyrins, which could be applied to link blocks for dye-sensitized solar cells of different structures. In order to overcome the main disadvantages associated with the need of highly toxic oxidant and unavoidable side reactions in the reported synthetic methods of unsymmetrical meso-phenyl-substituted porphyrins, an improved Macdonald-type 2+2 condensation based on the mixed solvents of dipyrromethanes and aldehydes were adopted to synthesize a series of 5-(R-group)-10, 15 and20-tris (4-methylphenyl) porphyrins, and all the structures were characterized by melting point analysis, electronic absorption spectroscopy and1H NMR spectroscopy. As a result, the high yield (13-17%) of A3B-type porphyrins as potential sensitizers in solar cells could be obtained by this new synthetic method.

scholarly journals Eco-Friendly Dye-Sensitized Solar Cells Based on Water-Electrolytes and Chlorophyll

Materials ◽  
2021 ◽  
Vol 14 (9) ◽  
pp. 2150
Author(s):  
Ji-Hye Kim ◽  
Sung-Yoon Park ◽  
Dong-Hyuk Lim ◽  
So-Young Lim ◽  
Jonghoon Choi ◽  
...  
Keyword(s):  
Solar Cells ◽  
Plasma Treatment ◽  
Ruthenium Complex ◽  
Photovoltaic Performance ◽  
Dye Sensitized Solar Cells ◽  
Dye Adsorption ◽  
Synthesis Process ◽  
Dye Sensitized ◽  
Water Based ◽  
Sensitized Solar Cells

Organic solvents used for electrolytes of dye-sensitized solar cells (DSSCs) are generally not only toxic and explosive but also prone to leakage due to volatility and low surface tension. The representative dyes of DSSCs are ruthenium-complex molecules, which are expensive and require a complicated synthesis process. In this paper, the eco-friendly DSSCs were presented based on water-based electrolytes and a commercially available organic dye. The effect of aging time after the device fabrication and the electrolyte composition on the photovoltaic performance of the eco-friendly DSSCs were investigated. Plasma treatment of TiO2 was adopted to improve the dye adsorption as well as the wettability of the water-based electrolytes on TiO2. It turned out that the plasma treatment was an effective way of improving the photovoltaic performance of the eco-friendly DSSCs by increasing the efficiency by 3.4 times. For more eco-friendly DSSCs, the organic-synthetic dye was replaced by chlorophyll extracted from spinach. With the plasma treatment, the efficiency of the eco-friendly DSSCs based on water-electrolytes and chlorophyll was comparable to those of the previously reported chlorophyll-based DSSCs with non-aqueous electrolytes.

scholarly journals Solid-state p-type dye-sensitized solar cells: progress, potential applications and challenges

2019 ◽  
Vol 3 (4) ◽  
pp. 888-898 ◽  
Author(s):  
Haining Tian
Keyword(s):  
Solar Cells ◽  
Solid State ◽  
Dye Sensitized Solar Cells ◽  
Dye Sensitized ◽  
Potential Applications ◽  
P Type ◽  
Sensitized Solar Cells

Progress, potential applications and challenges of solid-state p-type dye-sensitized solar cells have been overviewed and discussed.

scholarly journals Zinc Oxide Nanoparticles Catalyzed Condensation Reaction of Isocoumarins and 1,7-Heptadiamine in the Formation of Bis-Isoquinolinones

2012 ◽  
Vol 2012 ◽  
pp. 1-7 ◽  
Author(s):  
Varadhan Krishnakumar ◽  
Kesarla Mohan Kumar ◽  
Badal Kumar Mandal ◽  
Fazlur-Rahman Nawaz Khan
Keyword(s):  
Zinc Oxide ◽  
Zinc Oxide Nanoparticles ◽  
Condensation Reaction ◽  
High Yield ◽  
Oxide Nanoparticles ◽  
Acid Chlorides ◽  
Zno Nps ◽  
H Nmr ◽  
Yield And Purity ◽  
C Nmr

The diversified bis-isoquinolinones were obtained in two steps, utilizing homophthalic acid and various acid chlorides providing 3-substituted isocoumarins in the first step which on further condensation with 1,7-heptadiamine involving C–N bond formation from the lactone in the presence of 10 mol% zinc oxide nanoparticles (ZnO NPs) (<150 nm) afforded the desired bis-isoquinolinones in high yield and purity. The synthesized compounds were then characterized using FTIR,1H NMR,13C NMR, and HRMS techniques.

scholarly journals Toward Eco-Friendly Dye-Sensitized Solar Cells (DSSCs): Natural Dyes and Aqueous Electrolytes

Energies ◽  
2021 ◽  
Vol 15 (1) ◽  
pp. 219
Author(s):  
Ji-Hye Kim ◽  
Dong-Hyuk Kim ◽  
Ju-Hee So ◽  
Hyung-Jun Koo
Keyword(s):  
Solar Cells ◽  
High Efficiency ◽  
Low Cost ◽  
Dye Sensitized Solar Cells ◽  
Natural Dyes ◽  
Synthesis Process ◽  
High Power Conversion Efficiency ◽  
Dye Sensitized ◽  
Ru Complex ◽  
Sensitized Solar Cells

Due to their low cost, facile fabrication, and high-power conversion efficiency (PCE), dye-sensitized solar cells (DSSCs) have attracted much attention. Ruthenium (Ru) complex dyes and organic solvent-based electrolytes are typically used in high-efficiency DSSCs. However, Ru dyes are expensive and require a complex synthesis process. Organic solvents are toxic, environmentally hazardous, and explosive, and can cause leakage problems due to their low surface tension. This review summarizes and discusses previous works to replace them with natural dyes and water-based electrolytes to fabricate low-cost, safe, biocompatible, and environmentally friendly DSSCs. Although the performance of “eco-friendly DSSCs” remains less than 1%, continuous efforts to improve the PCE can accelerate the development of more practical devices, such as designing novel redox couples and photosensitizers, interfacial engineering of photoanodes and electrolytes, and biomimetic approaches inspired by natural systems.

scholarly journals Model Dye-Sensitized Solar Cell dan Aplikasinya Berdasarkan Data Temperatur Harian: Studi Kasus Pangkalpinang

2021 ◽  
Vol 6 (2) ◽  
Author(s):  
Aliefia Noor ◽  
Meri Hamdini ◽  
Salsabila Ramadina ◽  
Yuant Tiandho
Keyword(s):  
Solar Cells ◽  
Short Circuit ◽  
Dye Sensitized Solar Cells ◽  
Short Circuit Current ◽  
Open Circuit ◽  
Effect Of Temperature ◽  
Synthesis Process ◽  
Dye Sensitized ◽  
Proposed Model ◽  
Sensitized Solar Cells

<p>Dye-Sensitized Solar Cells (DSSC) is photovoltaic with a dye that functions as an acceptor of sunlight. The great potential of using DSSC lies in the ease of the synthesis process, and the dyes used can come from plants. However, like most other solar cells, increasing the operating temperature can degrade the DSSC performance and thus decrease the efficiency. This article presents a model of the relationship between the effect of temperature on DSSC performance. The model proposed is derived from the DSSC equivalence with a diode circuit. By confirming the experimental research results, it is known that the model presented in this study has excellent accuracy on various DSSC performance parameters (R2&gt; 0.99). The performance studied includes the I-V curve's shape, the value of the short-circuit current, the diode leakage current, and the open-circuit voltage. Based on daily temperature data in Pangkalpinang City, the potential performance of the DSSC could also be determined when it was developed in Kep. Bangka Belitung. The short-circuit current value obtained is in the range of 14 A with a voltage of 0.6 V. It is hoped that this proposed model can be information for the development of DSSC because of its enormous potential application in Indonesia.</p>

scholarly journals Synthesis of Thiophenyl Thiazole Based Novel Quinoxaline Derivatives

2015 ◽  
Vol 51 ◽  
pp. 115-124
Author(s):  
Haresh G. Kathrotiya ◽  
Yogesh T. Naliapara
Keyword(s):  
Aromatic Amine ◽  
Elemental Analysis ◽  
Condensation Reaction ◽  
High Yield ◽  
Experimental Procedure ◽  
H Nmr ◽  
Quinoxaline Derivatives ◽  
Ft Ir ◽  
C Nmr

A new series of thiophenyl thiazole based novel quinoxaline derivatives 4a-4t have been synthesized by base catalysed condensation reaction. In which 6-substituted 2,3-dichloroquinoxaline 1a and 4-(thiophen-2-yl) thiazol-2-amine 2b reacted in basic condition to afford intermediate 3c which reacts with various aromatic amine to form final compounds. Easy experimental procedure, high yield, and selectivity are the imperative features of this method. The identity of all the compounds has been established by 1H NMR, 13C NMR, FT-IR, and elemental analysis.

scholarly journals Synthesis, Characterization, Photoluminescence Property of Al(III) Schiff Base Complexes and Their Applications in Forensic Fingerprint and Dye Sensitized Solar Cells

2020 ◽  
Vol 32 (6) ◽  
pp. 1427-1432
Author(s):  
M. Srinivas ◽  
N. Sulochana ◽  
G. Ramesh
Keyword(s):  
Schiff Base ◽  
Solar Cells ◽  
Condensation Reaction ◽  
Dye Sensitized Solar Cells ◽  
Organic Ligand ◽  
Schiff Base Complexes ◽  
Yellow Light ◽  
Pale Yellow ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

Aluminium(III)-Schiff base complexes of bis(salicylidene)phenyl-1,2-diamino organic ligand derivatives were synthesized by condensation reaction with salicylaldehyde, substituted phenyl-1,2-diamine with aluminum trichloride and characterized by 1H NMR, FTIR, EDS and ICP-AAS. Photophysical properties like photoluminescence (PL) and IV characteristics were studied for the dye-sensitized solar cells (DSSCs) performance. The latent forensic finger print developments have also been demonstrated from the synthesized complexes. Photoluminescence studies revealed that emission peaks of the complexes in solution state appeared at 418- 572 nm and emitted blue and pale-yellow light. Latent fingerprint detection study indicated that the powder compounds show a good adhesion and finger ridge details without back ground staining. Based on these results, these Al(III) complexes can serve as a suitable non-dopant blue light as well as pale yellow light emitting compound for flat panel display applications and applied to detect latent fingerprints on variable substrates.

scholarly journals Separation of Functionalized 5,6-Disubstituted-1,10-Phenanthroline for Dye-Sensitized Solar Cell Applications

2013 ◽  
Vol 2013 ◽  
pp. 1-8 ◽  
Author(s):  
Hashem Shahroosvand ◽  
Parisa Abbasi ◽  
Behrouz Notash ◽  
Leyla Najafi
Keyword(s):  
Dye Sensitized Solar Cells ◽  
P System ◽  
Monoclinic Space Group ◽  
Single Crystal Diffraction ◽  
H Nmr ◽  
Dye Sensitized ◽  
Ft Ir ◽  
End Capping ◽  
Sensitized Solar Cells ◽  
Phenanthroline Ligands

5,6-Epoxy-1,10-phenanthroline is used as a convenient starting material for 5-hydroxy-6-Aryl-1,10-phenanthroline ligands containing carboxylic and sulfonic groups useful for further anchoring of the sensitizer on TiO2for dye-sensitized solar cells (DSCs). Based on the crystal growth of the mixture of products, a convenient separation route for the extension of the p-system on 5,6-disubstituted-1,10-phenanthroline was used to develop a novel series of functionalized 1,10-phenanthroline ligands with electron-withdrawing end-capping group. Also, we report the epoxy opening of 5,6-epoxy-1,10-phenanthroline by aromatic amines stoichiometrically in refluxing water and ethanol in the absence of any catalyst. The dyes were characterized by1H-NMR, FT-IR, UV-Vis, and X-ray single crystal diffraction analyses. It crystallizes in the monoclinic space groupC 2/c,a= 20.920(4) Å,b= 10.340(2) Å,c= 16.187(3) Å,β= 92.30(3)°,V= 3498.6(12) Å3, andZ= 8. The reaction details and features were described in detail.

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