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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Joshi, Prakash Yu, Xie Mwaura, Jeremiah Ropp, Mike Galipeau, David Qiao, Qiquan |
| Copyright Year | 2008 |
| Description | Author affiliation: Centre for Advanced Photovoltaics, Department of Electrical Engineering, South Dakota State University, Brookings, USA (Joshi, Prakash; Yu, Xie; Ropp, Mike; Galipeau, David; Qiao, Qiquan) || Konarka Technologies, Lowell, MA, USA (Mwaura, Jeremiah) |
| Abstract | We used a new method to make carbon catalyst counter electrodes for dye-sensitized solar cells (DSSCs) by coating a fluorine-doped tin oxide (FTO)-glass with carbon nanoparticles from an aqueous colloidal suspension of the blend of carbon nanoparticles (particle size ≪50 nm and surface area ≫ 100 $m^{2}/g$ ) and TiO. Z-907 dye was used as the sensitizer. The electrolyte effects on device performance were investigated using two systems: electrolyte 1 is a mixture of 0.5M LiI and 0.05M I in propylene carbonate; electrolyte 2 is a mixture of 0.60M BMII, 0.03M I, 0.10M GuSCN, 0.5 M tertbutylpyridin in a mixing solvent of acetonitrile and valeronitrile. Electrolyte 2 could prevent back charge transfer from TiO to the triodide in the electrolyte. Devices from electrolyte 2 showed a significant improvement in Voc and device efficiency. Overall we achieved an external energy conversion efficiency of 4.3 % using electrolyte 2 with a short circuit current density (Jsc) of 15.71 mA/ $cm^{2}$ and an open circuit voltage (Voc) of 0.71 V under an AM 1.5 illumination (100 $mW/cm^{2}).$ |
| Starting Page | 1 |
| Ending Page | 4 |
| File Size | 2739027 |
| Page Count | 4 |
| File Format | |
| ISBN | 9781424416400 |
| ISSN | 01608371 |
| DOI | 10.1109/PVSC.2008.4922625 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2008-05-11 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Photovoltaic cells Counting circuits Electrodes Nanoparticles Decision support systems Coatings Tin Solvents Charge transfer Energy conversion |
| Content Type | Text |
| Resource Type | Article |
| Subject | Industrial and Manufacturing Engineering Control and Systems Engineering Electrical and Electronic Engineering |
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