Silicon Qdot Solar Cells
27 May 2008, 13:55
Categories: Quantum-Dots smt-energy-photovoltaic
A group of international researchers has designed an all-silicon tandem solar cell that is based on Si-SiO2 quantum dot superlattices. The architecture consists of two solar cells of different bandgaps, controlled by quantum-dot size, that are stacked on top of a third cell made from bulk silicon. Hence, each layer is tuned to different wavelengths of electromagnetic radiation (i.e., light) and the solar cells use this broad excitation range to increase efficiency.
Posted by: The Editors
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