Ligand-free nano-grain Cu2SnS3 as a potential cathode alternative for both cobalt and iodine redox electrolyte dye-sensitized solar cells

2016 ◽  
Vol 4 (38) ◽  
pp. 14865-14876 ◽  
Author(s):  
Feng Liu ◽  
Shuanglin Hu ◽  
Xunlei Ding ◽  
Jun Zhu ◽  
Jian Wen ◽  
...  
Keyword(s):  
Solar Cells ◽  
Theoretical Calculations ◽  
Dye Sensitized Solar Cells ◽  
Electrochemical Measurements ◽  
Dye Sensitized ◽  
Redox Electrolyte ◽  
Ligand Free ◽  
Efficient Alternative ◽  
Sensitized Solar Cells

Both theoretical calculations and electrochemical measurements suggest the applicability of Cu2SnS3 as an efficient alternative catalyst in DSSCs.

scholarly journals Crystalline poly(triazine imide) based g-CN as an efficient electrocatalyst for counter electrodes of dye-sensitized solar cells using a triiodide/iodide redox electrolyte

2015 ◽  
Vol 3 (48) ◽  
pp. 24232-24236 ◽  
Author(s):  
Woo-ram Lee ◽  
Young-Si Jun ◽  
Jihee Park ◽  
Galen D. Stucky
Keyword(s):  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Pt Catalyst ◽  
Counter Electrodes ◽  
Dye Sensitized ◽  
Photovoltaic Efficiency ◽  
Redox Electrolyte ◽  
Sensitized Solar Cells

DSSCs using g-CN as an electrocatalyst exhibit photovoltaic efficiency comparable to that of conventional Pt catalyst.

scholarly journals Glass Frit Dissolution Influenced by Material Composition and the Water Content in Iodide/Triiodide Electrolyte of Dye-Sensitized Solar Cells

2013 ◽  
Vol 2013 ◽  
pp. 1-8 ◽  
Author(s):  
Katrine Flarup Jensen ◽  
Md. Mahbubur Rahman ◽  
Welmoed Veurman ◽  
Henning Brandt ◽  
Chan Im ◽  
...  
Keyword(s):  
Solar Cells ◽  
Chemical Stability ◽  
Metal Ion ◽  
Dye Sensitized Solar Cells ◽  
Glass Frit ◽  
Working Environment ◽  
Encapsulated Cells ◽  
Dye Sensitized ◽  
Redox Electrolyte ◽  
Sensitized Solar Cells

To ensure long-term stable dye-sensitized solar cells (DSCs) and modules, a hermetic sealing is required. This research investigates the chemical stability ofI-/I3-redox electrolyte and four different glass frits (GFs). Sintered GF layers were openly exposed to nonaqueous redox electrolyte and redox electrolyte with 1, 5, and 10 wt% H2O in thin, encapsulated cells. The change inI3−absorbance was assigned to a reaction between the GF andI-/I3-electrolyte and was used to evaluate the chemical stability of the different GFs. TheI3−absorbance change was monitored over 100 days. Two out of the four GFs were unstable when H2O was added to the redox electrolyte. The H2O caused metal ion leaching which was determined from EDX analysis of the inorganic remains of electrolyte samples. A GF based on Bi2O3–SiO2–B2O3with low bond strength leached bismuth into electrolyte and formed theBiI3-complex. A ZnO–SiO2–Al2O3-based GF also became unstable when H2O was added to the redox electrolyte. Leaching of zinc ions due to exchange with H+resulted in the formation of a zinc-iodine compound which causedI3−depletion. By applying the test design to different types of GFs, the material suitability in the DSC working environment was investigated.

scholarly journals The Effect of UV-Irradiation (under Short-Circuit Condition) on Dye-Sensitized Solar Cells Sensitized with a Ru-Complex Dye Functionalized with a (diphenylamino)Styryl-Thiophen Group

2009 ◽  
Vol 2009 ◽  
pp. 1-9 ◽  
Author(s):  
Kazuteru Nonomura ◽  
Yunhua Xu ◽  
Tannia Marinado ◽  
Daniel P. Hagberg ◽  
Rong Zhang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Uv Irradiation ◽  
Ruthenium Complex ◽  
Short Circuit ◽  
Dye Sensitized Solar Cells ◽  
Dye Sensitized ◽  
Ru Complex ◽  
Redox Electrolyte ◽  
Sensitized Solar Cells ◽  
Short Circuit Condition

A new ruthenium complex, cis-di(thiocyanato)(2,2′-bipyridine-4,4′-dicarboxylic acid)(4,4′-bis(2-(5-(2-(4-diphenylaminophenyl)ethenyl)-thiophen-2-yl)ethenyl)-2,2′-bipyridine)ruthenium(II) (named E322) has been synthesized for use in dye-sensitized solar cells (DSCs). Higher extinction coefficient and a broader absorption compared to the standard Ru-dye, N719, were aimed. DSCs were fabricated with E322, and the efficiency was 0.12% initially. (4.06% for N719, as reference). The efficiency was enhanced to 1.83% by exposing the cell under simulated sunlight containing UV-irradiation at short-circuit condition. The reasons of this enhancement are (1) enhanceing electron injection from sensitizer toTiO2following a shift toward positive potentials of the conduction band ofTiO2by the adsorption of protons or cations from the sensitizer, or from the redox electrolyte and (2) improving the regeneration reaction of the oxidized dye by the redox electrolyte by the dissolution of aggregated dye from the surface ofTiO2following the treatment.

First principles study of organic sensitizers for dye sensitized solar cells: effects of anchoring groups on optoelectronic properties and dye aggregation

2016 ◽  
Vol 18 (2) ◽  
pp. 1071-1081 ◽  
Author(s):  
Santhanamoorthi Nachimuthu ◽  
Wei-Chieh Chen ◽  
Ermias Girma Leggesse ◽  
Jyh-Chiang Jiang
Keyword(s):  
Solar Cells ◽  
First Principles ◽  
Spectral Properties ◽  
Theoretical Calculations ◽  
Dye Sensitized Solar Cells ◽  
Dye Sensitized ◽  
Dye Aggregation ◽  
Anchoring Groups ◽  
Sensitized Solar Cells ◽  
Organic Sensitizers

Efficient organic sensitizers with improved spectral properties and less aggregation have been proposed for practical DSSCs based on theoretical calculations.

scholarly journals A New Ionic Liquid for a Redox Electrolyte of Dye-Sensitized Solar Cells

ETRI Journal ◽  
2004 ◽  
Vol 26 (6) ◽  
pp. 647-652 ◽  
Author(s):  
Man Gu Kang ◽  
Kwang Sun Ryu ◽  
Soon Ho Chang ◽  
Nam-Gyu Park
Keyword(s):  
Ionic Liquid ◽  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Dye Sensitized ◽  
Redox Electrolyte ◽  
Sensitized Solar Cells
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