Qantum Dot Solar
14 March 2007, 10:34
Categories: smt-energy-photovoltaic Quantum-Dots
When a single photon of light hits silicon, it liberates one electron and produces a current. However, when a single high-energy photon from ultraviolet light (UV) strikes quantum dots made of semiconductor materials, many electrons are jolted from their atomic orbit. Arthur Nozik and his team, at the National Renewable Energy Laboratory in Golden, CO, have demonstrated this to be the case by using Qdots made of semiconductors such as lead sulfide and lead telluride. Their experiments suggest that quantum dots could someday increase the efficiency of converting sunlight into electricity, at costs similar to those associated with electricity generation via the burning of fossil fuels.
Read More
Posted by: The Editors
Permalink to this article
Previous: CNTs Linger in River Water
Next: A Nanoscale Pressure Sensor