Sputter-deposited ZnO thin films consisting of nano-networks for binder-free dye-sensitized solar cells

2013 ◽  
Vol 13 (2) ◽  
pp. 381-385 ◽  
Author(s):  
Yong-Tae Kim ◽  
Jiyoung Park ◽  
Jinsub Choi
Keyword(s):  
Thin Films ◽  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Zno Thin Films ◽  
Dye Sensitized ◽  
Binder Free ◽  
Sputter Deposited ◽  
Sensitized Solar Cells

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.

INFLUENCE OF GRAIN SIZE OF ZnO NANOCRYSTALLINE FILMS FOR APPLICATION IN DYE-SENSITIZED SOLAR CELLS

2007 ◽  
Vol 21 (18n19) ◽  
pp. 3448-3454 ◽  
Author(s):  
M. C. KAO ◽  
S. L. YOUNG ◽  
H. Z. CHEN ◽  
Y. C. CHEN ◽  
P. T. HSIEH ◽  
...  
Keyword(s):  
Thin Films ◽  
Grain Size ◽  
Solar Cells ◽  
Heating Temperature ◽  
Dye Sensitized Solar Cells ◽  
Zno Thin Films ◽  
Nanoporous Structure ◽  
Dye Sensitized ◽  
Wide Range ◽  
Sensitized Solar Cells

The preferred (002) orientation Zinc oxide ( ZnO ) nanocrystalline thin films have been deposited on ITO-coated glass substrates by means of sol-gel spin-coating technology and rapid thermal annealing for use in dye-sensitized solar cells (DSSC). The effects of annealing temperature (400 ~ 700 ° C ) on the microstructure and morphology of ZnO thin films were studied. With the increase of heating temperature from 400 °C to 700 °C, the grain size of ZnO thin films decreases from 80 to 10 nm. The decreases in grain size of ZnO thin films contributed to the improvement on the absorption of dye onto the films. The ITO/ZnO/RuL 2 (NCS) 2 electrodes with high absorption in the wide range containing visible light reveal that the nanoporous structure can adsorb easily the dye and can be expected in the application of DSSC.

Nanocrystalline TiO2/ZnO Thin Films:  Fabrication and Application to Dye-Sensitized Solar Cells

2005 ◽  
Vol 109 (51) ◽  
pp. 24254-24259 ◽  
Author(s):  
Rajaram S. Mane ◽  
Won Joo Lee ◽  
Habib M. Pathan ◽  
Sung-Hwan Han
Keyword(s):  
Thin Films ◽  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Zno Thin Films ◽  
Nanocrystalline Tio2 ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

Synthesis and characterization of Co and Ga co-doped ZnO thin films as an electrode for dye sensitized solar cells

2020 ◽  
Vol 46 (17) ◽  
pp. 26590-26597
Author(s):  
M.I. Khan ◽  
Muhammad Naeem ◽  
Ghulam M. Mustafa ◽  
Samar A. Abubshait ◽  
Asif Mahmood ◽  
...  
Keyword(s):  
Thin Films ◽  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Zno Thin Films ◽  
Synthesis And Characterization ◽  
Dye Sensitized ◽  
Doped Zno ◽  
Sensitized Solar Cells ◽  
Co Doped
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