Spray On Qdot Solar Cells
20 May 2008, 15:52
Categories: smt-energy-photovoltaic Quantum-Dots
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University of Toronto’s Ted Sargent is working on solar technologies that can be incorporated into every aspect of our daily life, from our clothes to our roads, using what is known as spray-on solar cells. His focus is the infrared spectrum, which is able to generate induce electrical current in the solar cells, even if it is a cloudy day. Half of the Sun’s power reaching the earth lies in this wavelength range.
At the core of the research is quantum dots. Each quantum dot is a particle semiconductor only a few nanometers in diameter. Interestingly, the size of the quantum dot determines the energy frequency the electrons within the nanoparticle can absorb. As a result, quantum dots are tunable particles that can be dispersed in solution and coated on nearly anything.
Posted by: The Editors
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