scholarly journals Improving the Spectral Response of Black Dye by Cosensitization with a Simple Indoline Based Dye in Dye-Sensitized Solar Cell

2013 ◽  
Vol 2013 ◽  
pp. 1-5 ◽  
Author(s):  
Md. Akhtaruzzaman ◽  
Ashraful Islam ◽  
Mohammad Rezaul Karim ◽  
A. K. Mahmud Hasan ◽  
Liyuan Han
Keyword(s):  
Solar Cell ◽  
Light Absorption ◽  
Spectral Response ◽  
Short Circuit ◽  
Power Conversion ◽  
Dye Sensitized Solar Cells ◽  
Wavelength Region ◽  
Dye Sensitized Solar Cell ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

Indoline dyeD-1was successfully applied as a cosensitizer for improving the spectral response of black dye in dye-sensitized solar cells (DSCs). It was observed thatD-1effectively increases the short-circuit photocurrent by offsetting the competitive light absorption byI/I3-electrolyte in the wavelength region 350–500 nm when adsorbed on the TiO2nanocrystaline films in a mix dye system. The DSCs containing theD-1and black dye achieved a power conversion efficiency of 9.80% with higher short-circuit photocurrent of 19.54 mA/cm2compared to the system of black dye without cosensitization under standard AM 1.5 sunlight.

Kinetics of dye regeneration in liquid electrolyte unveils efficiency of 10.5% in dye-sensitized solar cells

2018 ◽  
Vol 6 (42) ◽  
pp. 11444-11456 ◽  
Author(s):  
Jonnadula Venkata Suman Krishna ◽  
Narra Vamsi Krishna ◽  
Towhid H. Chowdhury ◽  
Suryaprakash Singh ◽  
Idriss Bedja ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Power Conversion ◽  
Dye Sensitized Solar Cells ◽  
Liquid Electrolyte ◽  
Dye Sensitized Solar Cell ◽  
Dye Sensitized ◽  
Dye Regeneration ◽  
Sensitized Solar Cells ◽  
Kinetics Of

We have designed and synthesised four novel porphyrin sensitizers for dye-sensitized solar cell applications and shown power conversion efficiency of 10.5%.

scholarly journals Increased photocurrent in a tandem dye-sensitized solar cell by modifications in push–pull dye-design

2015 ◽  
Vol 51 (18) ◽  
pp. 3915-3918 ◽  
Author(s):  
C. J. Wood ◽  
G. H. Summers ◽  
E. A. Gibson
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Spectral Response ◽  
Dye Sensitized Solar Cells ◽  
Photocurrent Density ◽  
Dye Sensitized Solar Cell ◽  
Dye Sensitized ◽  
P Type ◽  
Sensitized Solar Cells

New donor–π–acceptor dyes functionalised with a bodipy or indolium acceptor are described, which have an excellent spectral response in the red region and generate record photocurrent in tandem dye-sensitized solar cells. Our cationic acceptor dye, CAD3, generated a cathodic photocurrent density of 8.2 mA cm−2, the highest reported for a NiO p-type solar cell to date.

Carboxy-1,4-phenylenevinylene- and carboxy-2, 6-naphthylene-vinylene unsymmetrical substituted zinc phthalocyanines for dye-sensitized solar cells

2009 ◽  
Vol 13 (03) ◽  
pp. 369-375 ◽  
Author(s):  
Fabio Silvestri ◽  
Miguel García-Iglesias ◽  
Jun-Ho Yum ◽  
Purificación Vázquez ◽  
M. Victoria Martínez-Díaz ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Power Conversion ◽  
Dye Sensitized Solar Cells ◽  
Dye Sensitized Solar Cell ◽  
Dye Sensitized ◽  
Zinc Phthalocyanines ◽  
Conversion Efficiencies ◽  
Sensitized Solar Cells ◽  
Phthalocyanine Ring

Two unsymmetrical Zn (II) phthalocyanines 1 and 2 bearing an anchoring carboxylic function linked to the phthalocyanine ring through different rigid arylenevinylene bridges have been designed for dye-sensitized solar cell (DSSC) applications. The phthalocyanines 1 and 2, when anchored onto nanocrystalline TiO 2 films, yielded 30% incident monochromatic photon-to-current conversion efficiency (IPCE) and 2% power conversion efficiencies under AM1.5 sun.

Separating the redox couple for highly efficient solid-state dye-sensitized solar cells

2014 ◽  
Vol 16 (16) ◽  
pp. 7334-7338 ◽  
Author(s):  
Juan Li ◽  
Wei Zhang ◽  
Lu Zhang ◽  
Zhong-Sheng Wang
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Solid State ◽  
Power Conversion Efficiency ◽  
Power Conversion ◽  
Dye Sensitized Solar Cells ◽  
Redox Couple ◽  
Dye Sensitized Solar Cell ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

The power conversion efficiency of a solid-state dye-sensitized solar cell was improved by >2.5-fold when the redox-couple was separated.

scholarly journals Electronic and optical properties of metalloporphyrins of zinc on TiO2 cluster in dye-sensitized solar-cells (DSSC). A quantum chemistry study

RSC Advances ◽  
2017 ◽  
Vol 7 (68) ◽  
pp. 42677-42684 ◽  
Author(s):  
Fernando Mendizabal ◽  
Raúl Mera-Adasme ◽  
Wen-Hua Xu ◽  
Dage Sundholm
Keyword(s):  
Optical Properties ◽  
Solar Cells ◽  
Solar Cell ◽  
Quantum Chemistry ◽  
Light Absorption ◽  
Dye Sensitized Solar Cells ◽  
Dye Sensitized Solar Cell ◽  
Zinc Porphyrin ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

Dye-sensitized solar-cell (DSSC) systems have been investigated by calculating light-absorption and electron-injection processes of zinc-porphyrin-dye based sensitizers adsorbed on a TiO2 cluster simulating the semiconductor.

Highly efficient light harvesting ruthenium sensitizers for dye-sensitized solar cells featuring triphenylamine donor antennas

2014 ◽  
Vol 2 (14) ◽  
pp. 4945-4953 ◽  
Author(s):  
Kun Cao ◽  
Jianfeng Lu ◽  
Jin Cui ◽  
Yan Shen ◽  
Wei Chen ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Light Harvesting ◽  
Power Conversion ◽  
Dye Sensitized Solar Cells ◽  
Dye Sensitized Solar Cell ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

Ruthenium complexes featuring triphenylamine donor antennas boost dye-sensitized solar cell devices' power conversion efficiency close to 11%.

Rational design of hybrid dye-sensitized solar cells composed of double-layered photoanodes with enhanced power conversion efficiency

2014 ◽  
Vol 2 (29) ◽  
pp. 11035-11039 ◽  
Author(s):  
Xiaodan Zhang ◽  
Wenming Liao ◽  
Wei Mu ◽  
Dajiang Zheng ◽  
Yusheng Zhou ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Rational Design ◽  
Counter Electrode ◽  
Power Conversion ◽  
Dye Sensitized Solar Cells ◽  
Dye Sensitized Solar Cell ◽  
Dye Sensitized ◽  
Single Compartment ◽  
Sensitized Solar Cells

A uniquely structured dye-sensitized solar cell was fabricated by assembling two photoanodes and one counter electrode in a single compartment.

Applications of Cu@C Nanoparticles in New Dye-Sensitized Solar Cells

2008 ◽  
Vol 47-50 ◽  
pp. 1121-1124 ◽  
Author(s):  
Chang Yu Liao ◽  
H. Paul Wang ◽  
Fu Lin Chen ◽  
Chien Hua Huang ◽  
Yasuhiro Fukushima
Keyword(s):  
Solar Cell ◽  
Molten Salt ◽  
Short Circuit ◽  
Dye Sensitized Solar Cells ◽  
Photocurrent Density ◽  
Dye Sensitized Solar Cell ◽  
Dye Sensitized ◽  
The Core ◽  
20 Nm ◽  
Sensitized Solar Cells

To enhance the efficiency of a newly developing dye-sensitized solar cell (DSSC), Cu@C (7-20 nm) nanoparticles dispersed electrolyte has been studied. Experimentally, the efficiencies (η) of the DSSC are in the range of 2.70-4.09% with a short-circuit photocurrent density (Jsc) of 5.775-9.910 mA/cm2. Interestingly, it is found that addition of 1% of Cu@C (7 nm) nanoparticles in the molten salt (1,2-dimethyl-3-propylimidazolium iodide (DMPII)) conjugated electrolyte leads to an enhancement of 11% in the conversion efficiency (η) of 4.06%. By XANES, about 17-32% of copper in the core of Cu@C are oxidized to Cu2O (10-17%) and CuO (5-17%) in the molten salt in the electrolyte.

scholarly journals Characterization and Performance Evaluation of Dye Sensitized Solar Cell Using Nanostructured TiO2Electrode

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Sule Erten-Ela
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Short Circuit ◽  
Dye Sensitized Solar Cells ◽  
Photocurrent Density ◽  
Open Circuit ◽  
Dye Sensitized Solar Cell ◽  
Dye Sensitized ◽  
And Performance ◽  
Sensitized Solar Cells

Metal-free organic sensitizer consisting of donor, electron conducting, and anchoring anhydride groups was engineered at molecular level and synthesized. Dye sensitized solar cells based on conjugated naphthalene dye were fabricated using nanoporous electrode. Photoelectrodes with a 7 μm thick nanoporous layer and a 5 μm thick light-scattering layer were used to fabricate dye sensitized solar cells. DSSCs were fabricated in a FTO/nc-TiO2/organic dye/I-/I3-/Pt/FTO device geometry. Dye sensitized solar cell was characterized by current density-voltage (J-V) measurement. All current-voltage (I-V) measurements were done under 100 mW/cm2light intensity and AM 1.5 conditions. The photovoltaic data revealed a short circuit photocurrent density of 1.86 mA/cm2, an open circuit voltage of 430 mV, and a fill factor of 0.63, corresponding to an overall conversion efficiency of 0.53%.

Donor-π-acceptor, triazine-linked porphyrin dyads as sensitizers for dye-sensitized solar cells

2015 ◽  
Vol 19 (01-03) ◽  
pp. 175-191 ◽  
Author(s):  
Ganesh D. Sharma ◽  
Galateia E. Zervaki ◽  
Kalliopi Ladomenou ◽  
Emmanuel N. Koukaras ◽  
Panagiotis P. Angaridis ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Carboxylic Acid ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Power Conversion ◽  
Dye Sensitized Solar Cells ◽  
Orbital Energy ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

Two porphyrin dyads with the donor-π-acceptor molecular architecture, namely ( ZnP )-[triazine-gly]-( H 2 PCOOH ) and ( ZnP )-[triazine-Npip]-( H 2 PCOOH ), which consist of a zinc-metalated porphyrin unit and a free-base porphyrin unit covalently linked at their peripheries to a central triazine group, substituted either by a glycine in the former or a N-piperidine group in the latter, have been synthesized via consecutive amination substitution reactions of cyanuric chloride. The UV-vis absorption spectra and cyclic-voltammetry measurements of the two dyads, as well as theoretical calculations based on Density Functional Theory, suggest that they have suitable frontier orbital energy levels for use as sensitizers in dye-sensitized solar cells. Dye-sensitized solar cells based on ( ZnP )-[triazine-gly]-( H 2 PCOOH ) and ( ZnP )-[triazine-Npip]-( H 2 PCOOH ) have been fabricated, and they were found to exhibit power conversion efficiency values of 5.44 and 4.15%, respectively. Photovoltaic measurements (J–V curves) and incident photon to current conversion efficiency spectra of the two solar cells suggest that the higher power conversion efficiency value of the former solar cell is a result of its enhanced short circuit current, open circuit voltage, and fill factor values, as well as higher dye loading. This is ascribed to the existence of two carboxylic acid anchoring groups in ( ZnP )-[triazine-gly]-( H 2 PCOOH ), compared to one carboxylic acid group in ( ZnP )-[triazine-Npip]-( H 2 PCOOH ), which leads to a more effective binding onto the TiO 2 photoanode. Electrochemical impedance spectra show evidence that the ( ZnP )-[triazine-gly]-( H 2 PCOOH ) based solar cell exhibits a longer electron lifetime and more effective suppression of charge recombination reactions between the injected electrons and electrolyte.

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