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Digital Printing of Titanium Dioxide for Dye Sensitized Solar Cells
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Doping of TiO2 for sensitized solar cells
Bart Roose1, Sandeep Pathak, Ullrich Steiner
1Adolphe Merkle Institute, Rue des Verdiers, CH-1700 Fribourg, Switzerland. ullrich.steiner@unifr.ch.
Chemical Society Reviews
|August 29, 2015
Summary
Doping titanium dioxide (TiO2) enhances dye-sensitized solar cell performance by reducing defects, not solely by the dopant itself. This review evaluates TiO2 doping strategies and their impact on solar cell efficiency.
Area of Science:
- Materials Science
- Renewable Energy
- Photovoltaics
Background:
- Dye-sensitized solar cells (DSSCs) are a type of photovoltaic technology.
- Titanium dioxide (TiO2) is a key material used in DSSCs.
- Doping TiO2 is a strategy to improve DSSC performance.
Purpose of the Study:
- To review and evaluate the impact of TiO2 doping on DSSC performance.
- To understand how doping affects TiO2's electronic properties and charge dynamics.
- To discuss the potential of doping in emerging perovskite solar cells.
Main Methods:
- Literature review of studies on TiO2 doping in DSSCs.
- Analysis of the effects of doping on TiO2 band structure and trap states.
- Discussion of synthesis-dependent effects of doping and high-throughput prediction methods.
Main Results:
- Doping significantly alters TiO2's band structure, affecting charge transport and recombination.
- The performance enhancement is primarily attributed to defect reduction in TiO2 rather than the dopant itself.
- Nearly all tested dopants showed an increase in device performance.
Conclusions:
- TiO2 doping is an effective strategy for improving DSSC performance by minimizing defects.
- Understanding synthesis-dependent doping effects is crucial for selecting optimal dopants.
- Doping strategies for TiO2 may also be transferable and beneficial for perovskite solar cells.
