Optimization and Improvement of Dye-Sensitized Solar Cells Efficiency Using Thickness of TiO2 Photoelectrode with Al Back-Reflector

2017 ◽  
Vol 10 (4) ◽  
pp. 554-559 ◽  
Author(s):  
Dong In Kim ◽  
Yong-Min Lee ◽  
Ki-Hwan Hwang ◽  
Sang-Hun Nam ◽  
Jin-Hyo Boo
Keyword(s):  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Dye Sensitized ◽  
Back Reflector ◽  
Sensitized Solar Cells ◽  
Tio2 Photoelectrode

scholarly journals Organic Dyes in Dye-Sensitized Solar Cells Featuring Back Reflector

Energies ◽  
2021 ◽  
Vol 14 (17) ◽  
pp. 5529
Author(s):  
Agata Zdyb ◽  
Ewelina Krawczak
Keyword(s):  
Solar Cells ◽  
Molecular Orbital ◽  
Organic Dyes ◽  
Dye Sensitized Solar Cells ◽  
Pyrocatechol Violet ◽  
Cell Efficiency ◽  
Simulated Solar Light ◽  
Dye Sensitized ◽  
Back Reflector ◽  
Sensitized Solar Cells

Dye-sensitized solar cells (DSSCs) were fabricated using a photoelectrode covered by a porous layer of titanium dioxide, platinum counter electrode, iodide/triiodide electrolyte and three different dyes: phenylfluorone (PF), pyrocatechol violet (PCV) and alizarin (AL). After the adsorption of the dyes on the mesoporous TiO2 layer, the measurement of absorption spectra of all the tested dyes revealed a significant broadening of the absorption range. The positions of highest occupied molecular orbital (HOMO) and lowest occupied molecular orbital (LUMO) levels of dye molecules were determined, indicating that all three dyes are good candidates for light harvesters in DSSCs. The cells were tested under simulated solar light, and their working parameters were determined. The results showed that the implementation of the back reflector layer made of BaSO4 provided an improvement in the cell efficiency of up to 17.9% for phenylfluorone, 60% for pyrocatechol violet and 21.4% for alizarin dye.

Sign in / Sign up

Export Citation Format

Share Document