A new approach to modelling quantum dot concentrators
| Autor: | Keith W. J. Barnham, Ned Ekins-Daukes, Amanda J. Chatten, B.F. Buxton, Mohammad Azad Malik |
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| Rok vydání: | 2003 |
| Předmět: |
Renewable Energy
Sustainability and the Environment Chemistry business.industry Physics::Optics Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Tracking (particle physics) Concentrator Surfaces Coatings and Films Electronic Optical and Magnetic Materials Thermodynamic model Condensed Matter::Materials Science Optics Planar Quantum dot Radiative transfer Optoelectronics Luminescence business Absorption (electromagnetic radiation) |
| Zdroj: | Solar Energy Materials and Solar Cells. 75:363-371 |
| ISSN: | 0927-0248 |
| DOI: | 10.1016/s0927-0248(02)00182-4 |
| Popis: | Luminescent collectors have advantages over geometric concentrators in that tracking is unnecessary and both direct and diffuse radiation can be collected. However, development has been limited by the performance of luminescent dyes. We have recently proposed a novel concentrator in which the dyes are replaced by quantum dots (QDs). Advantages over dyes include that the absorption threshold can be tuned by choice of dot diameter, and that the red shift between absorption and luminescence is related to the spread of dot sizes. In this paper we discuss how we have developed a self-consistent thermodynamic model for planar concentrators which allows for re-absorption by the QDs. |
| Databáze: | OpenAIRE |
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