scholarly journals Understanding why replacing I3−/I− by cobalt(ii)/(iii) electrolytes in bis(diimine)copper(i)-based dye-sensitized solar cells improves performance

2016 ◽  
Vol 4 (33) ◽  
pp. 12995-13004 ◽  
Author(s):  
Sebastian O. Fürer ◽  
Biljana Bozic-Weber ◽  
Thomas Schefer ◽  
Cedric Wobill ◽  
Edwin C. Constable ◽  
...  
Keyword(s):  
Solar Cells ◽  
Mass Transport ◽  
Fill Factor ◽  
Dye Sensitized Solar Cells ◽  
Redox Mediators ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

Copper(i)-based DSCs show superior performances (reaching a PEC of 3.69%) when [Co(phen)3]2+/3+ or [Co(bpy)3]2+/3+ redox mediators replace I3−/I− due to higher chemical capacitance, JSC and VOC; the higher mass transport of [Co(phen)3]2+/3+vs. [Co(bpy)3]2+/3+ leads to lower JSC, fill factor and PEC for the former vs. the latter.

Improving the mass transport of copper-complex redox mediators in dye-sensitized solar cells by reducing the inter-electrode distance

2017 ◽  
Vol 19 (47) ◽  
pp. 32132-32142 ◽  
Author(s):  
Rodrigo García-Rodríguez ◽  
Roger Jiang ◽  
Esdras J. Canto-Aguilar ◽  
Gerko Oskam ◽  
Gerrit Boschloo
Keyword(s):  
Solar Cells ◽  
Mass Transport ◽  
Copper Complex ◽  
Fill Factor ◽  
Dye Sensitized Solar Cells ◽  
Redox Mediators ◽  
Dye Sensitized ◽  
Electrode Distance ◽  
Sensitized Solar Cells ◽  
Internal Transport

Reduction of inter-electrode distance in DSCs with copper-based electrolyte increases the photocurrent and fill factor by improving internal transport.

scholarly journals Intriguing C–H⋯Cu interactions in bis-(phenanthroline)Cu(i) redox mediators for dye-sensitized solar cells

2018 ◽  
Vol 47 (4) ◽  
pp. 1018-1022 ◽  
Author(s):  
Alessia Colombo ◽  
Rachele Ossola ◽  
Mirko Magni ◽  
Dominique Roberto ◽  
Denis Jacquemin ◽  
...  
Keyword(s):  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Redox Mediators ◽  
Methyl Group ◽  
Dye Sensitized ◽  
Copper Site ◽  
First Time ◽  
Sensitized Solar Cells

For the first time, an anagostic interaction is found between a H atom of a methyl group and a copper site in the bis-2-tertbutyl(phenanthroline)Cu(i) complex.

Methoxy-Substituted Copper Complexes as possible Redox Mediators in Dye-Sensitized Solar Cells

2021 ◽  
Author(s):  
Marco Giordano ◽  
Giorgio Volpi ◽  
Matteo Bonomo ◽  
Paolo Mariani ◽  
Claudio Garino ◽  
...  
Keyword(s):  
Solar Cells ◽  
Copper Complexes ◽  
Dye Sensitized Solar Cells ◽  
Redox Mediators ◽  
Dye Sensitized ◽  
Diimine Ligands ◽  
Sensitized Solar Cells

Three aromatic diimine ligands and the corresponding homoleptic copper(I) and copper(II) complexes have been synthetized and characterized. The copper(II) derivatives are stabilized by an ancillary chlorido ligand. The nature of...

Correlating cobalt redox couples to photovoltage in the dye-sensitized solar cell

2018 ◽  
Vol 47 (34) ◽  
pp. 11942-11952 ◽  
Author(s):  
Kitty Y. Chen ◽  
Phil A. Schauer ◽  
Brian O. Patrick ◽  
Curtis P. Berlinguette
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Redox Potential ◽  
Linear Correlation ◽  
Dye Sensitized Solar Cells ◽  
Dye Sensitized Solar Cell ◽  
Redox Mediators ◽  
Dye Sensitized ◽  
Redox Couples ◽  
Sensitized Solar Cells

Two sets of structurally analogous Co(iii/ii)-based redox mediators were incorporated in the dye-sensitized solar cells and a linear correlation was demonstrated between redox potential and photovoltage.

scholarly journals Comparative Study of Characteristics of Dye Sensitized Solar Cells Fabricated Using Substrates Coated with Fluorine Doped Tin Oxide and Titanium

2020 ◽  
Vol 15 (3) ◽  
pp. 216-221
Author(s):  
Arbin Maharjan
Keyword(s):  
Solar Cells ◽  
Tin Oxide ◽  
Fill Factor ◽  
Short Circuit ◽  
Dye Sensitized Solar Cells ◽  
Coated Glass ◽  
Cell Efficiency ◽  
Glass Substrates ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

Dye-sensitized solar cells (DSSCs) have attracted many researchers because it has potential to supplement and compete with other solar cell technologies like Silicon (Si) and Cadmium Telluride (CdTe). The fabrication of DSSCs requires a photo electrode and a counter electrode of transparent and conducting nature. The commercial DSSCs uses electrodes of fluorine doped tin oxide (FTO) glass substrates. These electrodes are expensive and hence, possible alternative materials that are cheaper and that would provide better performance under similar environmental condition should be explored. In this paper, titanium (Ti)-coated glass substrates were prepared and then used to prepare electrodes for fabricating DSSCs. Similarly, DSSCs were fabricated using electrodes of conventional FTO-coated glass substrates. Performance characteristics like cell efficiency (η%), fill-factor (FF), short circuit current density (JSC) and open circuit voltage (VOC) of both fabricated DSSCs were obtained using their respective J-V characteristic curves under similar illumination of 100 mW/cm2 and with comparable transmittance under the visible transmission spectrum of 300-850 nm. The obtained results showed that DSSCs prepared using electrodes of FTO coated glass substrates have 1.557 times better cell efficiency and 2.172 times better fill factor than that of DSSCs fabricated using electrodes of Ti-coated glass substrates.

Synthesis of phenanthrene-annulated imidazolium electrolyte-based dye sensitized solar cells as redox mediators

2020 ◽  
Vol 713 ◽  
pp. 138372
Author(s):  
Sule Erten-Ela ◽  
Serpil Denizalti ◽  
Abdulrahman K. Ali ◽  
Cagdas Yavuz ◽  
Cagatay Ela
Keyword(s):  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Redox Mediators ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

Fine-tuning the coordination atoms of copper redox mediators: an effective strategy for boosting the photovoltage of dye-sensitized solar cells

2019 ◽  
Vol 7 (20) ◽  
pp. 12808-12814 ◽  
Author(s):  
Yawei Zhao ◽  
Junyu Shen ◽  
Ze Yu ◽  
Maowei Hu ◽  
Chong Liu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Copper Complexes ◽  
Dye Sensitized Solar Cells ◽  
Redox Mediator ◽  
Fine Tuning ◽  
Effective Strategy ◽  
Redox Mediators ◽  
New Class ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

Herein, we report a new class of copper complexes bearing a tetradentate polythioether ligand, [(S4)Cu]2+/+ (12+/+, S4 = 1,4,8,11-tetrathiocyclotetradecane), as a redox mediator in dye-sensitized solar cells (DSCs).

scholarly journals Metal Coordination Complexes as Redox Mediators in Regenerative Dye-Sensitized Solar Cells

Inorganics ◽  
2019 ◽  
Vol 7 (3) ◽  
pp. 30 ◽  
Author(s):  
Yasemin Saygili ◽  
Marko Stojanovic ◽  
Natalie Flores-Díaz ◽  
Shaik M. Zakeeruddin ◽  
Nick Vlachopoulos ◽  
...  
Keyword(s):  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Coordination Complexes ◽  
Metal Coordination ◽  
Redox Mediators ◽  
Dye Sensitized ◽  
Operational Characteristics ◽  
Iron Nickel ◽  
Sensitized Solar Cells ◽  
Substantial Interest

Dye-sensitized solar cells (DSSCs) have attracted a substantial interest in the last 30 years for the conversion of solar power to electricity. An important component is the redox mediator effecting the transport of charge between the photoelectrode and the dark counter electrode (CE). Among the possible mediators, metal coordination complexes play a prominent role and at present are incorporated in several types of devices with a power conversion efficiency exceeding 10%. The present review, after a brief introduction to the operation of DSSCs, discusses at first the requirements for a successful mediator. Subsequently, the properties of various classes of inorganic coordination complexes functioning as mediators relevant to DSSC operation are presented and the operational characteristics of DSSC devices analyzed. Particular emphasis is paid to the two main classes of efficient redox mediators, the coordination complexes of cobalt and copper; however other less efficient but promising classes of mediators, notably complexes of iron, nickel, manganese and vanadium, are also presented.

Design of Organic Dyes and Cobalt Polypyridine Redox Mediators for High-Efficiency Dye-Sensitized Solar Cells

2010 ◽  
Vol 132 (46) ◽  
pp. 16714-16724 ◽  
Author(s):  
Sandra M. Feldt ◽  
Elizabeth A. Gibson ◽  
Erik Gabrielsson ◽  
Licheng Sun ◽  
Gerrit Boschloo ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Efficiency ◽  
Organic Dyes ◽  
Dye Sensitized Solar Cells ◽  
Redox Mediators ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

Effect of metal-doping in TiO2 on fill factor of dye-sensitized solar cells

2011 ◽  
Vol 99 (11) ◽  
pp. 113503 ◽  
Author(s):  
Xi Zhang ◽  
Shu-Tao Wang ◽  
Zhong-Sheng Wang
Keyword(s):  
Solar Cells ◽  
Fill Factor ◽  
Dye Sensitized Solar Cells ◽  
Metal Doping ◽  
Dye Sensitized ◽  
Sensitized Solar Cells
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