Effect of Anti-Reflective Layer in Dye-Sensitized Solar Cells

2014 ◽  
Vol 705 ◽  
pp. 320-323 ◽  
Author(s):  
Jung Eun Nam ◽  
Hyo Jeong Jo ◽  
Dae Ho Son ◽  
Dae Hwan Kim ◽  
Jin Kyu Kang
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Power Conversion ◽  
Photovoltaic Performance ◽  
Dye Sensitized Solar Cells ◽  
Electron Beam Evaporation ◽  
Solar Cell Device ◽  
Dye Sensitized ◽  
Reflective Layer ◽  
Sensitized Solar Cells

Anti-reflective (AR) layers play an important role in boosting the amount of light entering a device and reducing reflection losses in a device, thereby enhancing the power conversion efficiency of solar cells. We have coated an AR layer on the surface of a dye-sensitized solar cell device by using an electron beam evaporation system and investigated the effects of the AR layer by measuring photovoltaic performance. The AR layer is found to increases the Jsc and η of the solar cell.

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.

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%.

PEDOT:PSS assisted preparation of a graphene/nickel cobalt oxide hybrid counter electrode to serve in efficient dye-sensitized solar cells

RSC Advances ◽  
2015 ◽  
Vol 5 (121) ◽  
pp. 100159-100168 ◽  
Author(s):  
Gentian Yue ◽  
Guang Yang ◽  
Fumin Li ◽  
Jihuai Wu
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Counter Electrode ◽  
Photovoltaic Performance ◽  
Dye Sensitized Solar Cells ◽  
Dye Sensitized Solar Cell ◽  
Dye Sensitized ◽  
Nickel Cobalt ◽  
Nickel Cobalt Oxide ◽  
Sensitized Solar Cells

A much higher photovoltaic performance of a dye-sensitized solar cell with a (P-A) Gr/NiCo2O4 counter electrode is achieved than that of a Pt configuration device.

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.

A circulating electrolyte for a high performance carbon-based dye-sensitized solar cell

2017 ◽  
Vol 53 (40) ◽  
pp. 5561-5564 ◽  
Author(s):  
Shuai Gu ◽  
Enbing Bi ◽  
Bitian Fu ◽  
Gjergj Dodbiba ◽  
Toyohisa Fujita ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
High Performance ◽  
Photovoltaic Performance ◽  
Dye Sensitized Solar Cells ◽  
Dye Sensitized Solar Cell ◽  
Dye Sensitized ◽  
Sensitized Solar Cells ◽  
Carbon Based

Novel Pt-free dye-sensitized solar cells with a circulating electrolyte demonstrate much better photovoltaic performance than those with a stationary one.

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 Effect of π-Conjugated Spacer in N-Alkylphenoxazine-Based Sensitizers Containing Double Anchors for Dye-Sensitized Solar Cells

Polymers ◽  
2021 ◽  
Vol 13 (8) ◽  
pp. 1304
Author(s):  
Yung-Sheng Yen ◽  
Velu Indumathi
Keyword(s):  
Solar Cells ◽  
Electrochemical Impedance ◽  
Power Conversion ◽  
Photovoltaic Performance ◽  
Co Adsorption ◽  
Dye Sensitized Solar Cells ◽  
Photovoltaic Properties ◽  
Dye Sensitized ◽  
The Impact ◽  
Sensitized Solar Cells

A series of novel double-anchoring dyes for phenoxazine-based organic dyes with two 2-cyanoacetic acid acceptors/anchors, and the inclusion of a 2-ethylhexyl chain at the nitrogen atom of the phenoxazine that is connected with furan, thiophene, and 3-hexylthiophene as a linker, are used as sensitizers for dye-sensitized solar cells. The double-anchoring dye exhibits strong electronic coupling with TiO2, provided that there is an efficient charge injection rate. The result showed that the power conversion efficiency of DP-2 with thiophene linker-based cell reached 3.80% higher than that of DP-1 with furan linker (η = 1.53%) under standard illumination. The photovoltaic properties are further tuned by co-adsorption strategy, which improved power conversion efficiencies slightly. Further molecular theoretical computation and electrochemical impedance spectroscopy analysis of the dyes provide further insight into the molecular geometry and the impact of the different π-conjugated spacers on the photophysical and photovoltaic performance.

Photovoltaic performance and power conversion efficiency prediction of double fence porphyrins

2021 ◽  
Author(s):  
Canpu Yang ◽  
Peng Song ◽  
Reda El-Shishtawy ◽  
Fengcai Ma ◽  
Yuanzuo Li
Keyword(s):  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
High Efficiency ◽  
Power Conversion ◽  
Photovoltaic Performance ◽  
Dye Sensitized Solar Cells ◽  
Zinc Porphyrin ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

To explore high efficiency dye-sensitized solar cells (DSSCs), two experimentally derived (single fence and double fence porphyrins) and two theoretically designed zinc porphyrin molecules with D-D-π-A-A configurations were studied. Density...

Deposition of loosely bound organic D–A–π–A′ dyes on sensitized TiO2 film: a possible strategy to suppress charge recombination and enhance power conversion efficiency in dye-sensitized solar cells

2014 ◽  
Vol 2 (29) ◽  
pp. 11229-11234 ◽  
Author(s):  
Xiongwu Kang ◽  
Junxiang Zhang ◽  
Anthony J. Rojas ◽  
Daniel O'Neil ◽  
Paul Szymanski ◽  
...  
Keyword(s):  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Tio2 Film ◽  
Power Conversion ◽  
Photovoltaic Performance ◽  
Dye Sensitized Solar Cells ◽  
Direct Arylation ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

A D–A–π–A′ dye for dye-sensitized solar cells was synthesized via sequential C–H direct arylation; the photovoltaic performance was enhanced by deposition of additional dye on TiO2

scholarly journals Efficiency Investigations of Organic/Inorganic Hybrid ZnO Nanoparticles Based Dye-Sensitized Solar Cells

2016 ◽  
Vol 2016 ◽  
pp. 1-11 ◽  
Author(s):  
Satbir Singh ◽  
Amarpal Singh ◽  
Navneet Kaur
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Metal Complex ◽  
Zno Nanoparticles ◽  
Short Circuit ◽  
Photovoltaic Performance ◽  
Dye Sensitized Solar Cells ◽  
Inorganic Hybrid ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

The present research study focuses upon the synthesis, characterization, and performances of optoelectronic properties of organic-inorganic (hybrid) ZnO based dye sensitized solar cells. Initially, polymer dye A was synthesized using condensation reaction between 2-thiophenecarboxaldehyde and polyethylenimine and was capped to ZnO nanoparticles. Size and morphology of polymer dye A capped ZnO nanoparticles were analyzed using DLS, SEM, and XRD analysis. Further, the polymer dye was added to ruthenium metal complex (RuCl3) to form polymer-ruthenium composite dye B. Absorption and emission profiles of polymer dye A and polymer-ruthenium composite dye B capped ZnO nanoparticles were monitored using UV-Vis and fluorescence spectroscopy. Polymer dye A and polymer-ruthenium composite dye B capped ZnO nanoparticles were further processed to solar cells using wet precipitation method under room temperature. The results of investigations revealed that, after addition of ruthenium chloride (RuCl3) metal complex dye, the light harvesting capacity of ZnO solar cell was enhanced compared to polymer dye A capped ZnO based solar cell. The polymer-ruthenium composite dye B capped ZnO solar cell exhibited good photovoltaic performance with excellent cell parameters, that is, exciting open circuit voltage (Voc) of 0.70 V, a short circuit current density (Jsc) of 11.6 mA/cm2, and a fill factor (FF) of 0.65. A maximum photovoltaic cell efficiency of 5.28% had been recorded under standard air mass (AM 1.5) simulated solar illuminations for polymer-ruthenium composite dye B based hybrid ZnO solar cell. The power conversion efficiency of hybrid ZnO based dye sensitized solar cell was enhanced by 1.78% and 3.88% compared to polymer dye A (concentrated) and polymer dye A (diluted) capped ZnO based dye sensitized solar cells, respectively. The hybrid organic/inorganic ZnO nanostructures can be implemented in a variety of optoelectronic applications in the future of clean and green technology.

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