Peter N. Saeta

Professor (1995)
PhD Harvard
Ultrafast physics, semiconductors, photovoltaics, energy and environment
- Office
- Keck 1231
- Phone
- 909-607-3939 (office)
909-621-8024 (department)
909-621-8887 (fax) - saeta@g.hmc.edu
- Page
- http://www.physics.hmc.edu/~saeta/
Photovoltaics are the fastest-growing renewable energy source over the last three years and have the potential to supply a significant fraction of our electricity needs. Conventional silicon cells are made of thick crystals because silicon is a weak absorber in the infrared and much of the visible. Thin solar cells require less energy and material to make and may lead more swiftly to widespread deployment of photovoltaics.
A challenge facing thin cells is to maximize the absorption of the solar spectrum. We explore the enhancements to absorption in thin-film cells made possible by metallic nanoparticles and other structures designed to scatter incident radiation into guided modes propagating parallel to the cell's surface.
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