Atwater, Harry (2018) Nanophotonics for the terawatt solar age: New concepts for generation of electricity and fuels from sunlight. In: 255th American Chemical Society National Meeting & Exposition, March 18-22, 2018, New Orleans, LA. https://resolver.caltech.edu/CaltechAUTHORS:20180412-073517466
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Abstract
The recent rapid drop of solar module prices and global growth of photovoltaics has moved frontiers for solar energy research towards new challenges and opportunities, including new nanophotonics-based tandem photovoltaic structures that have potential to leverage the enormous existing manufg. base for Si photovoltaics. I will describe new approaches for nanophotonic design of high efficiency photovoltaics and photoelectrochem. generation of solar fuels. First, I describe a tandem-on-Si luminescent solar concentrator concept that uses quantum dot luminophores and nanoantennas to enable 30-100x concn. of diffuse sunlight onto small III-V compd. semiconductor cells, with potential for beyond-Si module efficiencies. Another direction towards achieving cost-effective III-V tandem-on-Si structures employs nanowire top cells prepd. via epitaxy-free and vacuumfree processing methods. Finally, emerging two-dimensional semiconductor materials such as transition metal dichalcogenides (TMDCs) and layered perovskites with high luminescence yields and favorable bandgaps are interesting candidates for tandem photovoltaics. I will also discuss approaches to use of tandem nanophotonic structures for photoelectrodes and light management in high efficiency, stable photoelectrochem. devices for water-splitting and carbon dioxide redn.
Item Type: | Conference or Workshop Item (Paper) | ||||||
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Additional Information: | © 2018 American Chemical Society. | ||||||
Record Number: | CaltechAUTHORS:20180412-073517466 | ||||||
Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20180412-073517466 | ||||||
Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||
ID Code: | 85771 | ||||||
Collection: | CaltechAUTHORS | ||||||
Deposited By: | Tony Diaz | ||||||
Deposited On: | 12 Apr 2018 16:05 | ||||||
Last Modified: | 03 Oct 2019 19:35 |
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