Reverse Bias Degradation in Shadowed Devices in TiO2 Dye-Sensitized Solar Cell Modules

2012 ◽  
Vol 1442 ◽  
Author(s):  
Simone Mastroianni ◽  
Thomas M. Brown ◽  
Alessandro Lanuti ◽  
Lucio Cinà ◽  
Angelo Lembo ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Solar Cell ◽  
Reverse Bias ◽  
Constant Current ◽  
Dye Sensitized Solar Cell ◽  
Severe Loss ◽  
Cell Efficiency ◽  
Dye Sensitized ◽  
Current Voltage ◽  
Cell Modules

ABSTRACTMismatched or shadowed individual cells in a module can operate in the Reverse Bias (RB) regime. Subjecting a dye solar cell (DSC) to an accelerated RB stress by forcing a constant current equal to 2-fold its ISC, produced significant alterations on the current-voltage (I-V) characteristics in RB with time and a severe loss of cell efficiency in 32h. We investigated and identified a key mechanism for RB charge transfer and degradation in DSCs. I-V characteristics in RB were found to be sensitive to the type of dye utilized and to TiCl4 substrate treatment.

pH Influences on Optical Absorption of Anthocyanin from Black Rice as Sensitizer for Dye Sensitized Solar Cell TiO2 Nanoparticles

2016 ◽  
Vol 864 ◽  
pp. 154-158
Author(s):  
Mariya Al Qibtiya ◽  
Eka Cahya Prima ◽  
Brian Yuliarto ◽  
Suyatman
Keyword(s):  
Solar Cell ◽  
Optical Absorption ◽  
Dye Sensitized Solar Cell ◽  
Black Rice ◽  
X Ray ◽  
Dye Sensitized ◽  
Current Voltage ◽  
Average Grain Size ◽  
Uv Visible

Natural dyes extracted from black rice are used as sensitizer for dye sensitized solar cell. The anthocyanin extracted with various pH in acidic and neutral coditions. Preparation of fotolectrode TiO2 film using doctor blade method and resulting average grain size 33,9 nm using X-Ray Diffractometer. Characterization of morphology and cross-section film TiO2 is confirmed by Scanning Electron microscopy (SEM). Optical absorption using UV-Visible Spectroscopy to obtain spectrum absorbance of anthocyanin in various pH. The current-voltage (J-V) characterization shows the performance DSSC have a match relation to the optical absorption. The best absorption of anthocyanin obtained at pH 6 as well as conversion efficiency reaches 2.26% at this pH condition.

scholarly journals Influence of n-Mosfet transistor on dye-sensitized solar cell efficiency

Heliyon ◽  
2018 ◽  
Vol 4 (12) ◽  
pp. e01078 ◽  
Author(s):  
Temitope Abodunrin ◽  
Adenike Boyo ◽  
Mojisola Usikalu ◽  
Moses Emetere ◽  
Oluseyi Ajayi ◽  
...  
Keyword(s):  
Solar Cell ◽  
Dye Sensitized Solar Cell ◽  
Solar Cell Efficiency ◽  
Cell Efficiency ◽  
Dye Sensitized

Graphene-based large area dye-sensitized solar cell modules

Nanoscale ◽  
2016 ◽  
Vol 8 (9) ◽  
pp. 5368-5378 ◽  
Author(s):  
Simone Casaluci ◽  
Mauro Gemmi ◽  
Vittorio Pellegrini ◽  
Aldo Di Carlo ◽  
Francesco Bonaccorso
Keyword(s):  
Solar Cell ◽  
Spray Coating ◽  
Cost Effective ◽  
Dye Sensitized Solar Cell ◽  
Photovoltaic Devices ◽  
Large Area ◽  
Dye Sensitized ◽  
Cell Modules ◽  
Viable Method ◽  
The Way

We demonstrated the spray coating of graphene ink as a viable method for large-area fabrication of graphene-based dye-sensitized solar cell modules, paving the way to all-printed, transparent and cost-effective large-area photovoltaic devices.

A Study on the Efficiency Improvement of Dye-Sensitized Solar Cell (DSSC) by Repeated Dye Coating

2015 ◽  
Vol 15 (10) ◽  
pp. 7706-7710
Author(s):  
Young Ho Seo ◽  
Eun Chang Choi ◽  
Byungyou Hong
Keyword(s):  
Solar Cell ◽  
High Efficiency ◽  
Dye Adsorption ◽  
Working Environment ◽  
Dye Sensitized Solar Cell ◽  
Coating Process ◽  
Cell Efficiency ◽  
Dye Sensitized ◽  
Long Time ◽  
Low Efficiency

Dye-sensitized solar cell (DSSC) is being extensively investigated as the next generation energy source. Despite of the attractive features like simple fabrication process and its economic efficiency, there are some problems such as low efficiency, long fabrication time and low long-term stability. Conventionally, the dye adsorption on TiO2 photo-electrode film needs long time in the solvent with low concentration of dye to get the high efficiency. In this work, the dye coating process was considerably shortened, albeit plenty of dye was used comparing with the conventional way. Our needs were met for the best result in our working environment and the relevant conditions to our work were obtained, which were the coating temperature of 70 °C, the dye concentration of 10 mM and the coating time of 3 min. And this coating process was successively repeated several times to maximize the dye adsorption and to improve the cell efficiency. Therefore, the efficiency increased by 13% in the proper condition.

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