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Title: How Does a Solar Cell Work? The Influence of Light Trapping and Light Extraction on Ultimate Solar Cell Efficiency
Originating Office: IAS
Speaker: Yablonovitch, Eli
Issue Date: 7-Jan-2011
Event Date: 7-Jan-2011
Group/Series/Folder: Record Group 8.15 - Institute for Advanced Study
Series 3 - Audio-visual Materials
Location: 8.15:3 box 1.7
Notes: IAS Distinguished Lecture.
Abstract: With continual progress in solar cells, we are now approaching theoretical efficiency limits. As the efficiency rises, photon management becomes more important than electronic transport properties. The theoretical Shockley-Queisser efficiency limit implicitly assumes perfect extraction of luminescent photons from the semiconductor film. We know from Light-Emitting Diodes, that this is actually very difficult to achieve. A very good solar cell also needs to be an excellent LED.
Prof Yablonovitch's work has covered a broad variety of topics: nonlinear optics, laser-plasma interaction, infrared laser chemistry, photovoltaic energy conversion, strained-quantum-well lasers, and chemical modification of semiconductor surfaces. Currently his main interests are in optoelectronics, high speed optical communications, high efficiency light-emitting diodes and nano-cavity lasers, photonic crystals at optical and microwave frequencies, quantum computing and quantum communication.
Duration: 115 min.
Appears in Series:8.15:3 - Audio-visual Materials
Videos for Public -- Distinguished Lectures