Optoelectronic Optimization of Thin-Film Solar Cells
DIPC Seminars
- Speaker
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Akhlesh Lakhtakia, Pennsylvania State University, USA
- When
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2019/12/09
13:00 - Place
- Donostia International Physics Center
- Add to calendar
-
iCal
Solar light received on earth is rich in photons in the 500-900-nm wavelength
range. A photovoltaic solar cell is an optoelectronic device containing
semiconductors that capture and absorb solar photons. Every absorbed photon
creates an electron-hole pair (EHP). Electrons and holes are sent in opposite
directions to generate an electric current. However, some electrons can
recombine with holes to reduce the current. Reliable and accurate simulation
tools are required to design and optimize thin-film solar cells to enhance
photon absorption, maximize the EHP generation rate, and minimize the EHP
recombination rate. With the rigorous coupled-wave approach used for the
optical model and the finite-element method for the electrical model of the
solar cell, and the differential evolution algorithm for optimal grading of
the bandgap of the absorber layer, the efficiencies of thin-film solar cells
can be enhanced 25% and higher.
**Host:** Juan Jose Saenz