Quantum dot solar concentrators

• Unité de recherche: OFEN
• Numéro de projet: 101806

Mots-clé (Allemand)

TP0073;F - Photovoltaik

Description succincte (Allemand)

L'objectif principal de ce projet est de déterminer le potentiel, et donc l'intérêt de développer des concentrateurs d'énergie solaire à base de quantum dots (QD) pour produire de l'électricité photovoltaïque.

Rapport final (Anglais)

One of the most promising application of semiconductor nanostructures in the field of photovoltaics might be planar photoluminescent concentrators. Even for diffuse solar radiation considerable concentration factors might be achieved. Such devices have originally been designed on the basis of organic dyes and might benefit from a considerably improved lifetime when replacing the organic fluorescent substances by inorganic semiconductor nanocrystals, so-called quantum dots. Quantum dot containing nanocomposite thin films are synthesized at EPFL-LESO by a low cost sol-gel process. In order to study the potential of the use of quantum dot solar concentrators in photovoltaic solar energy conversion, reliable computer simulations are needed. A tool for ray tracing simulations of quantum dot solar concentrators has been developed at EPFL-LESO on the basis of Monte-Carlo methods that are applied to polarization-dependent reflection/transmission at interfaces, photon absorption by the semiconductor nanocrystals and photoluminescent reemission. Together with the knowledge on the optoelectronical properties of suitable photovoltaic cells, such simulations allow to predict the total efficiency of the envisaged concentrating PV systems, and to optimize pane dimensions, photoluminescent emission frequencies, and choice of PV cell types.

Auftragnehmer/Contractant/Contraente/Contractor:


Autorschaft/Auteurs/Autori/Authors:
Schüler,Andreas
Kostro,André
Huriet,Benjamin

Documents annexés

• Evaluation du potentiel de concentrateurs à Quantum Dots pour la production d'électricité photovoltaïque - Rapport Final [PDF] 812 kB