Efficient electron transport in tetrapod-like ZnO metal-free dye-sensitized solar cells

2009 ◽  
Vol 2 (6) ◽  
pp. 694 ◽  
Author(s):  
Wei-Hao Chiu ◽  
Chia-Hua Lee ◽  
Hsin-Ming Cheng ◽  
Hsiu-Fen Lin ◽  
Shih-Chieh Liao ◽  
...  
Keyword(s):  
Solar Cells ◽  
Electron Transport ◽  
Dye Sensitized Solar Cells ◽  
Metal Free ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

Photovoltaic performance of natural metal free photo-sensitizer for TiO2 based dye-sensitized solar cells

Optik ◽  
2019 ◽  
Vol 181 ◽  
pp. 619-626 ◽  
Author(s):  
A. Arulraj ◽  
G. Senguttuvan ◽  
S. Veeramani ◽  
V. Sivakumar ◽  
B. Subramanian
Keyword(s):  
Solar Cells ◽  
Photovoltaic Performance ◽  
Dye Sensitized Solar Cells ◽  
Metal Free ◽  
Dye Sensitized ◽  
Photo Sensitizer ◽  
Sensitized Solar Cells

Effect of TiO2 surface treatment on electron transfer in dye-sensitized solar cells

2022 ◽  
Author(s):  
Suping Jia ◽  
Tong Cheng ◽  
Huinian Zhang ◽  
Hao Wang ◽  
Caihong Hao
Keyword(s):  
Solar Cells ◽  
Electron Transport ◽  
High Efficiency ◽  
Surface Defects ◽  
Dye Sensitized Solar Cells ◽  
Charge Recombination ◽  
Defect States ◽  
Transport Pathway ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

Defect states in the TiO2 nanoparticles can cause severe charge recombination and poor electron-transport efficiency when used as a photoanode in dye-sensitized solar cells (DSSCs). Herein, we report a simple and practical way to passivate the surface defects of TiO2 through hydrothermal treating with acetic acid and H2SO4, introducing a high percentage of 101 facets and sulfonic acid functional groups on the TiO2 surface. A high efficiency of 8.12% has been achieved, which is 14% higher than that of untreated TiO2 under the same condition. EIS results prove that the multiacid-treated TiO2 can promote electron transport and reduce charge recombination at the interface of the TiO2 and electrolyte. This work provides an efficient approach to engineer the electron-transport pathway in DSSCs.

Metal-free organic sensitizers with a sterically hindered thiophene unit for efficient dye-sensitized solar cells

2011 ◽  
Vol 21 (36) ◽  
pp. 13785 ◽  
Author(s):  
Erika Kozma ◽  
Isabella Concina ◽  
Antonio Braga ◽  
Laura Borgese ◽  
Laura E. Depero ◽  
...  
Keyword(s):  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Metal Free ◽  
Dye Sensitized ◽  
Sterically Hindered ◽  
Sensitized Solar Cells ◽  
Organic Sensitizers
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