scholarly journals Influence of Electrodeposition Post-Treatment on Microcosmic Performances in Dye-sensitized Solar Cells

2013 ◽  
Vol 71 (5) ◽  
pp. 777 ◽  
Author(s):  
Dongxing Kou ◽  
Weiqing Liu ◽  
Linhua Hu ◽  
Shuanghong Chen ◽  
Yang Huang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Post Treatment ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

The effect of Ni(CH3COO)2 post-treatment on the charge dynamics in p-type NiO dye-sensitized solar cells

2015 ◽  
Vol 50 (20) ◽  
pp. 6668-6676 ◽  
Author(s):  
Qian Liu ◽  
Lifang Wei ◽  
Shuai Yuan ◽  
Xin Ren ◽  
Yin Zhao ◽  
...  
Keyword(s):  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Post Treatment ◽  
Charge Dynamics ◽  
Dye Sensitized ◽  
P Type ◽  
Sensitized Solar Cells

Effects of TiCl4 Post-Treatment on the Efficiency of Dye-Sensitized Solar Cells

2015 ◽  
Vol 15 (11) ◽  
pp. 8870-8875 ◽  
Author(s):  
Narayan Chandra Deb Nath ◽  
Alagesan Subramanian ◽  
Rui Yuan Hu ◽  
Beong Ou Lim ◽  
Jae-Joon Lee
Keyword(s):  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Post Treatment ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

scholarly journals Reduced electron recombination of dye-sensitized solar cells based on TiO2 spheres consisting of ultrathin nanosheets with [001] facet exposed

2012 ◽  
Vol 3 ◽  
pp. 378-387 ◽  
Author(s):  
Hongxia Wang ◽  
Meinan Liu ◽  
Cheng Yan ◽  
John Bell
Keyword(s):  
Solar Cells ◽  
Electron Transport ◽  
Conduction Band ◽  
Dye Sensitized Solar Cells ◽  
Post Treatment ◽  
Electron Recombination ◽  
Effective Electron ◽  
Dye Sensitized ◽  
Ultrathin Nanosheets ◽  
Sensitized Solar Cells

An anatase TiO2 material with hierarchically structured spheres consisting of ultrathin nanosheets with 100% of the [001] facet exposed was employed to fabricate dye-sensitized solar cells (DSCs). Investigation of the electron transport and back reaction of the DSCs by electrochemical impedance spectroscopy showed that the spheres had a threefold lower electron recombination rate compared to the conventional TiO2 nanoparticles. In contrast, the effective electron diffusion coefficient, D n, was not sensitive to the variation of the TiO2 morphology. The TiO2 spheres showed the same D n as that of the nanoparticles. The influence of TiCl4 post-treatment on the conduction band of the TiO2 spheres and on the kinetics of electron transport and back reactions was also investigated. It was found that the TiCl4 post-treatment caused a downward shift of the TiO2 conduction band edge by 30 meV. Meanwhile, a fourfold increase of the effective electron lifetime of the DSC was also observed after TiCl4 treatment. The synergistic effect of the variation of the TiO2 conduction band and the electron recombination determined the open-circuit voltage of the DSC.

Efficiency Enhancement of ZnO Nanocrystalline Dye-Sensitized Solar Cells by Post-Treatment

2016 ◽  
Vol 852 ◽  
pp. 901-907
Author(s):  
Yu Jiao ◽  
Guang Chao Wang ◽  
Feng Rong Li ◽  
Shu Hong Xie
Keyword(s):  
Solar Cells ◽  
Chemical Modification ◽  
Short Circuit ◽  
Photovoltaic Performance ◽  
Dye Sensitized Solar Cells ◽  
Post Treatment ◽  
Surface Chemical ◽  
Dye Sensitized ◽  
Sensitized Solar Cells ◽  
Surface Chemical Modification

In this paper, ZnO nanocrystalline photoanodes were treated by zinc acetate aqueous solution. The effect of surface chemical modification processing on the photovoltaic performance and electrochemical properties of ZnO nanocrystalline dye-sensitized solar cells (DSSCs) were studied systematically. The SEM results revealed that the surface of the ZnO photoanode films were rough and some aggregations were formed after the surface chemical modification processing. The number of aggregations increased with increasing processing time, and showed wide grain size distribution simultaneously, which effectively increased the light scattering and decreased the grain boundaries to suppress the electron recombination. Moreover, the surface of these photoanode films were filled with micropores, which was benefit to the infiltration of electrolyte solution. The short circuit current density increased from 7.20 mA•cm-2 to 8.61 mA • cm-2 when post-treatment 20 min, and the maximum energy conversion efficiency reached 3.61%, which enhanced 43% compared with that without post-treatment.

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