Analysis of Electron Recombination in Dye Sensitized Solar Cells Based on the Forward Bias Dependence of Dark Current and Electroluminescence Characterization

2013 ◽  
Vol 30 (10) ◽  
pp. 108801 ◽  
Author(s):  
Wen-Bo Xiao ◽  
Wei-Qing Liu ◽  
Xing-Dao He
Keyword(s):  
Solar Cells ◽  
Dark Current ◽  
Forward Bias ◽  
Dye Sensitized Solar Cells ◽  
Electron Recombination ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

Surface modification of TiO2 by an ionic liquid electrolyte in dye-sensitized solar cells using a molecular insulator

RSC Advances ◽  
2015 ◽  
Vol 5 (43) ◽  
pp. 33855-33862 ◽  
Author(s):  
Molang Cai ◽  
Xu Pan ◽  
Weiqing Liu ◽  
John Bell ◽  
Songyuan Dai
Keyword(s):  
Ionic Liquid ◽  
Surface Modification ◽  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Liquid Electrolyte ◽  
Electron Recombination ◽  
Ionic Liquid Electrolyte ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

DMImBS is used as a novel additive in dye-sensitized solar cells to restrain the electron recombination and intercalation of Li+.

Densely packed zinc sulfide nanoparticles on TiO2 for hindering electron recombination in dye-sensitized solar cells

2016 ◽  
Vol 40 (11) ◽  
pp. 9176-9186 ◽  
Author(s):  
Hee-Je Kim ◽  
Jeong-Hoon Kim ◽  
Ikkurthi Kanaka Durga ◽  
Dinah Punnoose ◽  
Nagabhushanam Kundakarla ◽  
...  
Keyword(s):  
Solar Cells ◽  
Zinc Sulfide ◽  
Dye Sensitized Solar Cells ◽  
Electron Recombination ◽  
Compact Layer ◽  
Dye Sensitized ◽  
Zinc Sulfide Nanoparticles ◽  
Sensitized Solar Cells

A graphical diagram of DSSCs without and with ZnS as a compact layer on a TiO2 film.

Tetraphenylethylene tethered phenothiazine-based double-anchored sensitizers for high performance dye-sensitized solar cells

2019 ◽  
Vol 7 (40) ◽  
pp. 23225-23233 ◽  
Author(s):  
Chun-Ting Li ◽  
Yi-Ling Kuo ◽  
CH. Pavan Kumar ◽  
Pei-Ting Huang ◽  
Jiann T. Lin
Keyword(s):  
Solar Cells ◽  
Dark Current ◽  
High Performance ◽  
Dye Sensitized Solar Cells ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

The YL4 dye exhibits DSSC efficiencies of 10.87% (1 sun) and 27.54% (187 lux) due to effective double layered shelters (the dianchor skeleton and clogged TPE units) for blockade of dark current.

scholarly journals Aluminum-Doped SnO2Hollow Microspheres as Photoanode Materials for Dye-Sensitized Solar Cells

2016 ◽  
Vol 2016 ◽  
pp. 1-5
Author(s):  
Binghua Xu ◽  
Zeng Chen ◽  
Shengjun Li
Keyword(s):  
Solar Cells ◽  
Dark Current ◽  
Open Circuit Voltage ◽  
Dye Sensitized Solar Cells ◽  
Open Circuit ◽  
Impedance Spectra ◽  
Al Doping ◽  
Dye Sensitized ◽  
Recombination Reactions ◽  
Sensitized Solar Cells

Al doped SnO2microspheres were prepared through hydrothermal method. As-prepared SnO2microspheres were applied as photoanode materials in dye-sensitized solar cells (DSCs). The properties of the assembled DSCs were significantly improved, especially the open-circuit voltage. The reason for the enhancement was explored through the investigation of dark current curves and electrochemistry impedance spectra. These results showed that the Al doping significantly increased the reaction resistance of recombination reactions and restrained the dark current. The efficient lifetime of photoexcited electrons was also obviously lengthened.

Ferroelectric polyoxometalate-modified nano semiconductor TiO2 for increasing electron lifetime and inhibiting electron recombination in dye-sensitized solar cells

2020 ◽  
Vol 7 (17) ◽  
pp. 3072-3080 ◽  
Author(s):  
Yitong Gu ◽  
Ting Wang ◽  
Yi-na Dong ◽  
He Zhang ◽  
Di Wu ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Electron Lifetime ◽  
Electron Recombination ◽  
Dye Sensitized ◽  
Electron Holes ◽  
Sensitized Solar Cells

Ferroelectric polyoxometalate Sm is a good electron transfer medium, which can reduce electron-holes recombination and increase electrons lifetime in DSSCs.

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.

scholarly journals The origin of slow electron recombination processes in dye-sensitized solar cells with alumina barrier coatings

2004 ◽  
Vol 96 (11) ◽  
pp. 6903-6907 ◽  
Author(s):  
Francisco Fabregat-Santiago ◽  
Jorge García-Cañadas ◽  
Emilio Palomares ◽  
John N. Clifford ◽  
Saif A. Haque ◽  
...  
Keyword(s):  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Slow Electron ◽  
Electron Recombination ◽  
Barrier Coatings ◽  
Dye Sensitized ◽  
Recombination Processes ◽  
Sensitized Solar Cells
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