| EPSRC Reference: |
GR/N00548/01 |
| Title: |
MODELLING TRANSPORT AND INTERFACIAL INTERACTIONS IN THE GRATZEL SOLAR PHOTOVOLTAIC CELL |
| Principal Investigator: |
Walker, Professor AB |
| Other Investigators: |
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| Project Partners: |
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| Department: |
Physics |
| Organisation: |
University of Bath |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
01 May 2000 |
Ends: |
30 September 2003 |
Value (£): |
152,803
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| EPSRC Research Topic Classifications: |
| Materials Characterisation |
Solar Technology |
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| EPSRC Industrial Sector Classifications: |
| Electronics |
Energy |
| No relevance to Underpinning Sectors |
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| Panel History: |
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Summary on Grant Application Form |
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Gratzel photovoltaic cells are based on dye-sentised mesopoporous films of Ti02. They are stable cheap alternatives to conventional solar cells, possessing high solar-to-electrical energy conversion efficiencies. Charge generation occurs through photoexcitation of the absorbed dye followed by electron injection into the conduction band of the Ti02 grain. The electrons then travel through the network porous Ti02 to reach the anode. The oxidised dye molecules are regenerated by a electron transfer from iodide ions in the electrolyte. To enhace their efficiency, open circuit voltage and short circuit current we need a predictive model that can determine the dominant factors controlling transport including transport including composition of and transport in the elctrolyte, Ti02 grain size, distribution and concentration, carrier injection/extraction a the electrodes and illumination intensities and profiles. The model will comprise a Monte Carlo simulation based on a multiple trapping model coupled with a finite element model for ion diffusion in the electrolyte.The model will be validated by experimental data on the steady-state and transient photocurrent and photovoltage and intensity modulated photocurrent/phtvoltage spectroscopy.
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Key Findings |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Potential use in non-academic contexts |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Impacts |
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| Description |
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk |
| Summary |
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| Date Materialised |
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Sectors submitted by the Researcher |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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| Project URL: |
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| Further Information: |
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| Organisation Website: |
http://www.bath.ac.uk |