scholarly journals Nanoporous ZnO Photoelectrode for Dye-Sensitized Solar Cell

2012 ◽  
Vol 2012 ◽  
pp. 1-7 ◽  
Author(s):  
Bayram Kılıç ◽  
Emre Gür ◽  
Sebahattin Tüzemen
Keyword(s):  
Thin Films ◽  
Conversion Efficiency ◽  
Dye Sensitized Solar Cells ◽  
Zno Thin Films ◽  
Large Area ◽  
Self Assembled Monolayer ◽  
Dye Sensitized ◽  
Solar Conversion ◽  
Sensitized Solar Cells ◽  
Solar Conversion Efficiency

Nanoporous and macroporous structures were prepared by using self-assembled monolayer (SAM) onto ZnO thin films in order to investigate the efficiency of dye-sensitized solar cells (DSSCs) produced using these films. Using SAM on ZnO thin films, it is obtained successfully assembled large-area, highly ordered porous ZnO thin films. Varying nanoporous radius is observed between 20 and 50 nm sizes, while it is 500–800 nm for macroporous radius. The solar conversion efficiency of 2.75% and IPCE of 29% was obtained using ZnO nanoporous/N719 dye/I−/I3-electrolyte, while macroporous ZnO given solar conversion efficiency of 2.22% and IPCE of 18%.

scholarly journals New dinuclear hydrido-carbonyl rhenium complexes designed as photosensitizers in dye-sensitized solar cells

2016 ◽  
Vol 40 (3) ◽  
pp. 2910-2919 ◽  
Author(s):  
Lorenzo Veronese ◽  
Elsa Quartapelle Procopio ◽  
Francesca De Rossi ◽  
Thomas M. Brown ◽  
Pierluigi Mercandelli ◽  
...  
Keyword(s):  
Solar Cells ◽  
Conversion Efficiency ◽  
Dye Sensitized Solar Cells ◽  
Rhenium Complexes ◽  
Dye Sensitized ◽  
Solar Conversion ◽  
Sensitized Solar Cells ◽  
Solar Conversion Efficiency

Dye-sensitized solar cells based on dinuclear hydrido-carbonyl rhenium complexes have been developed, achieving an overall solar conversion efficiency of 1.0%.

Synthesis and Application of Novel β D-π-A Porphyrin Dyes in Dye-Sensitized Solar Cells

2013 ◽  
Vol 634-638 ◽  
pp. 2634-2637 ◽  
Author(s):  
Fang Qun Zhou ◽  
Ya Qing Feng ◽  
Xiao Peng ◽  
Bao Zhang
Keyword(s):  
Solar Cells ◽  
Conversion Efficiency ◽  
Dye Sensitized Solar Cells ◽  
Dye Sensitized ◽  
Solar Conversion ◽  
Sensitized Solar Cells ◽  
Solar Conversion Efficiency

Two β D-π-A porphyrin dyes have been synthesized and applied as photosensitizers for dye-sensitized solar cells. A maximum solar conversion efficiency of 2.2% has been achieved for dye 2-(N, N-diphenylaminophenylacetynyl)-12(13)-(4-carboxylphenylacetynyl)-5, 10, 15, 20-tetra (4-tert butylphenyl)porphyrin zinc.

Solid-state dye-sensitized solar cells from polymer-templated TiO2 bilayer thin films

2012 ◽  
Vol 90 (12) ◽  
pp. 1048-1055
Author(s):  
Honghan Fei ◽  
Xiaojuan Fan ◽  
David L. Rogow ◽  
Scott R.J. Oliver
Keyword(s):  
Thin Films ◽  
Solid State ◽  
Conversion Efficiency ◽  
Short Circuit ◽  
Dye Sensitized Solar Cells ◽  
Photocurrent Density ◽  
Open Circuit ◽  
Dye Sensitized ◽  
Maximum Conversion Efficiency ◽  
Sensitized Solar Cells

We report an inexpensive method using solvent-swollen poly(methyl methacrylate) as a sacrificial template for mesoporous titanium oxide thin films with tunable meso/nano morphology. The conversion efficiency reaches 4.2% despite using a solid-state electrolyte, which circumvents the longevity issues of liquid electrolytes. The cells show a large short-circuit photocurrent density of 7.98 mA, open-circuit voltage of 0.78 V, and maximum conversion efficiency of 4.2% under air-mass 1.5 global illumination. At higher titania precursor ratios, nanodisk particles are formed that increase light scattering and double the efficiency over our previous reports. The tunability of the semiconductor morphology and all solid-state nature of the cells makes the method a viable alternative to existing solar cell technology.

Manufacturing process and optical properties of zinc oxide thin films as photoanode in DSSC

2018 ◽  
Vol 1 (86) ◽  
pp. 33-40
Author(s):  
Wiktor Matysiak ◽  
Tomasz Tański ◽  
Marta Zaborowska
Keyword(s):  
Thin Films ◽  
Zinc Oxide ◽  
Optical Properties ◽  
Solar Cells ◽  
Physical Properties ◽  
Dye Sensitized Solar Cells ◽  
Zno Thin Films ◽  
Oxide Thin Films ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

Purpose: It has been recently observed, that zinc oxide thin films are gaining much popularity, particularly in applications such as toxic gas sensors, photocatalytic materials and photovoltaic cells. Due to much better physical properties of ZnO compared to the ones of titanium dioxide (TiO2), which is currently the most used material in dye sensitized solar cells, efforts are being made to fabricate DSSCs with thin films and/or nanostructures, including nanowires, nanofibres and nanoparticles of zinc oxide. Design/methodology/approach: In this paper, zinc oxide thin films were prepared using sol-gel and spin coating methods from Zn(COO)2 x 2H2O dissolved in ethanol and acetic acid with ZnO monocrystalline nanoparticles of 0 and 10% (wt.) relative to the final concentration of produced solutions. The effect of calcination process on ZnO thin films at 600°C were examined using atomic force microscope to investigate the morphology of semiconductor coatings, infrared spectroscopy to prove the chemical structure of material. Besides, optical properties were analysed on the basis of absorbance in the function of wavelength spectra and the values of energy band gaps were studied. Findings: The topography analysis of ZnO thin films showed an increase in roughness with the increase of zinc oxide nanoparticles in the thin films material. In addition, the analysis of the optical properties of ZnO thin films showed a decrease in absorption level in the range of near-ultraviolet wavelength for the obtained layers after annealing. Research limitations/implications: It was found that ZnO thin films produced by spin coating and calcination method are a proper material for photoanode in dye-sensitized solar cells, as zinc oxide layers provide better conductivity across the photovoltaic cell. Practical implications: The results provide the possibility of production DSSCs with zinc oxide thin films as photoanode. Originality/value: The dye-sensitized solar cells based on zinc oxide photoanodes could be alternative semiconductor material to titanium dioxide, which is used in nowadays solar cells. It was estimated that ZnO, especially zinc oxide nanostructures have much better physical properties, than TiO2 structures. What is more, zinc oxide thin layers are characterized by the lower energy losses resulting from the physical properties of such nanostructures, which results in more efficient solar energy into electricity conversion.

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