scholarly journals Synthesis and Physico-Chemical Properties of Homoleptic Copper(I) Complexes with Asymmetric Ligands as a DSSC Dye

Molecules ◽  
2021 ◽  
Vol 26 (22) ◽  
pp. 6835
Author(s):  
Tomohiko Inomata ◽  
Mayuka Hatano ◽  
Yuya Kawai ◽  
Ayaka Matsunaga ◽  
Takuma Kitagawa ◽  
...  
Keyword(s):  
Dft Calculations ◽  
Low Cost ◽  
Dye Sensitized Solar Cells ◽  
Chemical Properties ◽  
Dye Sensitized ◽  
Physico Chemical ◽  
Td Dft ◽  
Conversion Efficiencies ◽  
Symmetric Ligands ◽  
Sensitized Solar Cells

To develop low-cost and efficient dye-sensitized solar cells (DSSCs), we designed and prepared three homoleptic Cu(I) complexes with asymmetric ligands, M1, M2, and Y3, which have the advantages of heteroleptic-type complexes and compensate for their synthetic challenges. The three copper(I) complexes were characterized by elemental analysis, UV-vis absorption spectroscopy, and electrochemical measurements. Their absorption spectra and orbital energies were evaluated and are discussed in the context of TD-DFT calculations. The complexes have high VOC values (0.48, 0.60, and 0.66 V for M1, M2, and Y3, respectively) which are similar to previously reported copper(I) dyes with symmetric ligands, although their energy conversion efficiencies are relatively low (0.17, 0.64, and 2.66%, respectively).

scholarly journals Sustainable Organic Dyes from Winemaking Lees for Photoelectrochemical Dye-Sensitized Solar Cells

2020 ◽  
Vol 10 (6) ◽  
pp. 2149
Author(s):  
Manuel Meneghetti ◽  
Aldo Talon ◽  
Elti Cattaruzza ◽  
Emilio Celotti ◽  
Elisabetta Bellantuono ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Dyes ◽  
Low Cost ◽  
Dye Sensitized Solar Cells ◽  
Cost Effective ◽  
Simulated Solar Light ◽  
Dye Sensitized ◽  
Different Temperatures ◽  
Conversion Efficiencies ◽  
Sensitized Solar Cells

During the last two decades, Dye Sensitized Solar Cells (DSSCs) have received a great deal of attention as a promising, low-cost alternative to conventional silicon photovoltaic devices. Natural dye molecules can be used as a sensitizer for their low cost, good light absorbance, easy preparation process, and biodegradability. In this study, dyes were obtained from wine lees, the last by-product of winemaking process, supplied by a venetian winery (Italy). Polyphenols, like tannins and anthocyanins, which were extracted from winemaking lees, were adsorbed on a nanostructured ordered mesoporous titanium dioxide, previously treated at different temperatures (400–600 °C). Both dyes and titania semiconductor samples were studied with different techniques. The tests were carried out on prototypes to evaluate the cell power and the photocurrent generated under simulated solar light irradiation. The obtained solar energy conversion efficiencies are comparable to those that were reported in literature by using organic dyes extracted from vegetables, fruits, and plants. It is significant that these dyes are largely available and cost effective, since recovered from a waste otherwise to be disposed of, opening up a perspective of feasibility for inexpensive and environmentally friendly dye solar cells to generate green electricity and transforming agri-food waste into a resource.

scholarly journals Modifications of Liquid Electrolyte for Monolithic Dye-sensitized Solar Cells

2021 ◽  
Vol 21 (1) ◽  
pp. 35
Author(s):  
Putri Nur Anggraini ◽  
Erlyta Septa Rosa ◽  
Natalita Maulani Nursam ◽  
Rico Fernado Sinaga ◽  
Shobih Shobih
Keyword(s):  
Solar Cells ◽  
Low Cost ◽  
Photovoltaic Performance ◽  
Dye Sensitized Solar Cells ◽  
Chemical Properties ◽  
Liquid Electrolyte ◽  
Dye Sensitized ◽  
Electrolyte Component ◽  
The Stability ◽  
Sensitized Solar Cells

Dye-sensitized solar cells (DSSC) has been well known as a highly competitive photovoltaic technology owing to its interesting characteristics, such as, low-cost, simple, and convenient to modify both chemically and physically. One way to reduce the production cost of DSSCs is to conduct a structural modification in the form of a monolithic structure by using a single conductive substrate to accommodate both photoelectrode and counter electrode. However, the photovoltaic performance of monolithic DSSCs is typically still lacking compared to its conventional DSSCs counterparts that uses sandwich structure. One of the crucial factors that determine the photovoltaic performance of a monolithic DSSC is its electrolyte. In this work, the performance of monolithic DSSCs were studied through modifications of the electrolyte component. Two types of commercial liquid electrolytes that have different chemical properties were used and combined into various compositions, and the resulting DSSCs performances were compared. The stability of the monolithic cells was also monitored by measuring the cells repeatedly under the same condition. The result showed that during the first measurement the highest performance with a power conversion efficiency of 1.69% was achieved by the cell with a higher viscosity electrolyte. Meanwhile, the most stable performance is shown by the cell containing lower viscosity electrolyte, which achieved an efficiency of 0.66% that measured on day 35. 

scholarly journals DFT and TD-DFT Calculations of Some Metal Free Phthalonitrile Derivatives for Enhancement of the Dye Sensitized Solar Cells

2011 ◽  
Vol 119 (3) ◽  
pp. 395-404 ◽  
Author(s):  
P.M. Anbarasan ◽  
P. Senthil Kumar ◽  
K. Vasudevan ◽  
S. Moorthy Babu ◽  
V. Aroulmoji
Keyword(s):  
Solar Cells ◽  
Dft Calculations ◽  
Dye Sensitized Solar Cells ◽  
Metal Free ◽  
Dye Sensitized ◽  
Td Dft ◽  
Sensitized Solar Cells

Theoretical screening of promising donor and π-linker groups for POM-based Zn–porphyrin dyes in dye-sensitized solar cells

2019 ◽  
Vol 21 (7) ◽  
pp. 3822-3831 ◽  
Author(s):  
Yu Gao ◽  
Wei Guan ◽  
Likai Yan ◽  
Yanhong Xu
Keyword(s):  
Density Functional Theory ◽  
Solar Cells ◽  
Dft Calculations ◽  
Density Functional ◽  
Dye Sensitized Solar Cells ◽  
Time Dependent ◽  
Functional Theory ◽  
Dye Sensitized ◽  
Td Dft ◽  
Sensitized Solar Cells

A series of Zn–porphyrin dyes with different donor and π-linker groups based on the dye SM315 were systematically investigated to screen highly efficient candidates based on density functional theory (DFT) and time-dependent DFT (TD-DFT) calculations.

scholarly journals Fabrication of DSSCs with biebrich scarlet, alizarine cyanine green and evans blue dyes as new organic photosensitizers

2018 ◽  
Vol 36 (4) ◽  
pp. 655-661 ◽  
Author(s):  
Sarita Bose ◽  
K.R. Genwa
Keyword(s):  
Solar Cells ◽  
Evans Blue ◽  
Organic Dyes ◽  
Low Cost ◽  
Dye Sensitized Solar Cells ◽  
Photoelectrochemical Cells ◽  
Dye Sensitized ◽  
New Generation ◽  
Conversion Efficiencies ◽  
Sensitized Solar Cells

AbstractDye sensitized solar cells are photoelectrochemical cells mimicking photosynthesis. They represent a new generation of solar cells which is intensively studied nowadays. This cell was fabricated using TiO2 nanoparticles coated on FTO glass, organic dyes as photosensitizer, PEDOT:PSS as counter electrode and iodide-triiodide as electrolyte. The present work aims at the use of low cost new organic dyes viz. biebrich scarlet, alizarine cyanine green and evans blue for DSSC as an alternative to metallic dyes. In the present work, I-V characteristics, energy or power conversion efficiencies of the dyes have been studied in different solvents. The photoelectrochemical properties of the dyes were observed under 1.5 AM condition.

Electrocatalytic properties of iron chalcogenides as low-cost counter electrode materials for dye-sensitized solar cells

RSC Advances ◽  
2015 ◽  
Vol 5 (89) ◽  
pp. 72553-72561 ◽  
Author(s):  
Jiahao Guo ◽  
Suxia Liang ◽  
Yantao Shi ◽  
Bo Li ◽  
Ce Hao ◽  
...  
Keyword(s):  
Solar Cells ◽  
Counter Electrode ◽  
Electrode Materials ◽  
Theoretical Calculations ◽  
Low Cost ◽  
Dye Sensitized Solar Cells ◽  
Iron Chalcogenides ◽  
Dye Sensitized ◽  
Conversion Efficiencies ◽  
Sensitized Solar Cells

Three iron chalcogenides were successfully prepared and tested as CE materials in DSSCs. The devices using FeS2, FeSe2 and FeTe2 obtained high photovoltaic conversion efficiencies of 8.00, 7.92 and 7.21%, respectively, which were also confirmed by theoretical calculations.

Sign in / Sign up

Export Citation Format

Share Document