Role of Resonance Energy Transfer in Light Harvesting of Zinc Oxide-Based Dye-Sensitized Solar Cells
| Autor: | Sunandan Baruah, Samir Kumar Pal, Joydeep Dutta, A. K. Raychaudhuri, Soumik Sarkar, Abhinandan Makhal, Tanujjal Bora |
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| Rok vydání: | 2010 |
| Předmět: |
Photon
Chemistry business.industry Photochemistry Surfaces Coatings and Films Electronic Optical and Magnetic Materials law.invention Dye-sensitized solar cell Electron transfer General Energy Förster resonance energy transfer law Picosecond Excited state Solar cell Optoelectronics Optical radiation Physical and Theoretical Chemistry business |
| Zdroj: | The Journal of Physical Chemistry C. 114:10390-10395 |
| ISSN: | 1932-7455 1932-7447 |
| DOI: | 10.1021/jp102042j |
| Popis: | In this contribution we have studied the dynamics of light harvesting of ZnO nanoparticles (NPs) to a surface adsorbed sensitizing dye (SD) N719. By using the picosecond resolved Forster resonance energy transfer (FRET) technique we have explored that the excited ZnO NPs resonantly transfer visible optical radiation to the SD N719. The consequence of the energy transfer on the performance of the overall efficiency of a model ZnO NP-based dye-sensitized solar cell (DSSC) has also been explored. We have demonstrated that the overall efficiency of a ZnO NP-based solar cell significantly depends on the presence of high-energy photons in the solar radiation. In a control experiment on a model TiO2 NP-based solar cell it has been demonstrated that the presence of high-energy photon has a minimal effect on the performance of the cell as the TiO2 NPs are incapable of harvesting high-energy photons from solar radiation. The possibility of the back electron transfer from the excited NPs to the SD has also been inve... |
| Databáze: | OpenAIRE |
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