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%.

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.

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%.

scholarly journals Dye-Sensitized Solar Cells with Optimal Gel Electrolyte Using the Taguchi Design Method

2013 ◽  
Vol 2013 ◽  
pp. 1-5 ◽  
Author(s):  
Jenn-Kai Tsai ◽  
Wen Dung Hsu ◽  
Tian-Chiuan Wu ◽  
Jia-Song Zhou ◽  
Ji-Lin Li ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Taguchi Method ◽  
Dye Sensitized Solar Cells ◽  
Liquid Electrolyte ◽  
Gel Electrolyte ◽  
Dye Sensitized Solar Cell ◽  
Optimal Composition ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

The Taguchi method was adopted to determine the optimal gel electrolyte used in dye-sensitized solar cells (DSSCs). Since electrolyte is a very important factor in fabrication of high performance and long-term stability DSSCs, to find the optimal composition of gel electrolyte is desired. In this paper, the common ingredients used in the liquid electrolyte were chosen. The ingredients then mixed with cheap ionic liquids and poly(vinylidenefluoride-co-hexafluoropropylene) (PVDF-HFP) were added to form colloidal electrolyte (gel). The optimal composition of each materials in the gel electrolyte determined by Taguchi method consists of 0.03 M I2, 0.15 M KI, 0.6 M LiI, 0.5 M 4-tertbutylpyridine (TBP), and 10% PVDF-HFP dissolved in the acetonitrile and 3-methoxypropionitrile (MPN) solution with volume ratio of 2 : 1. The short circuit current density of 14.11 mA/cm2, the conversion efficiency (η) of 5.52%, and the lifetime of over 110 days were observed for the dye-sensitized solar cell assembled with optimal gel electrolyte. The lifetime increases 10 times when compared with the conventional dye-sensitized solar cell assembled with liquid electrolyte.

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.

scholarly journals Polyiodide solid-state dye-sensitized solar cell produced from a standard liquid I−/I3− electrolyte

2020 ◽  
Vol 8 (38) ◽  
pp. 19991-19999
Author(s):  
Ellie Tanaka ◽  
Neil Robertson
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Solid State ◽  
Dye Sensitized Solar Cells ◽  
Liquid Electrolyte ◽  
Dye Sensitized Solar Cell ◽  
Ambient Conditions ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

Solid-state dye-sensitized solar cells were obtained by drying a standard I−/I3− liquid-electrolyte cell in ambient conditions.

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.

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.

Dye-sensitized solar cells containing mesoporous TiO2spheres as photoanodes and methyl sulfate anion based biionic liquid electrolytes

2015 ◽  
Vol 3 (12) ◽  
pp. 6383-6391 ◽  
Author(s):  
Jia-De Peng ◽  
Chuan-Pei Lee ◽  
D. Velayutham ◽  
V. Suryanarayanan ◽  
Kuo-Chuan Ho
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Solid State ◽  
Dye Sensitized Solar Cells ◽  
Dye Sensitized Solar Cell ◽  
Methyl Sulfate ◽  
Sulfate Anion ◽  
Dye Sensitized ◽  
Liquid Electrolytes ◽  
Sensitized Solar Cells

A quasi-solid state dye-sensitized solar cell with the photoanode film of mesoporous TiO2spheres exhibited an efficiency of 6.18% and unfailing stability for 1200 h at 50 °C.

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.

Sign in / Sign up

Export Citation Format

Share Document