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Design of Photovoltaics For Modules With 50% Efficiency

 Emily C. Warmann, Cristofer Flowers, John Lloyd, Carissa N. Eisler, Matthew D. Escarra, Harry A. Atw
Description: A wide variety of photovoltaic cell technologies have shown dramatic performance improvements over the past decade, yet the prospect of a practical module capable of 50% efficiency remains remote. Experimentally achieved singlecell devices have achieved a record efficiency of 28.8% [1], which is close to the theoretical limit of 33.8% for such devices [2]. However, the single-cell limit is far below the fundamental efficiency limit for solar energy conversion of 74.0% for global illumination and 92.8% for direct [2] because a single pn junction can only efficiently convert photons with energy close to the value of its energy bandgap.
Views: 1292
Domain: Energy
Category: Photovoltaics/Solar

Design of photovoltaics for modules with 50% efficiency
Emily C. Warmann1, Cristofer Flowers1, John Lloyd1, Carissa N. Eisler2, Matthew D. Escarra3 &
Harry A. Atwater1

Institute of Technology, Pasadena, California, USA
O Lawrence Berkeley National Laboratory, Berkeley, California, USA
3Tulane University, New Orleans, Louisiana, USA

Efficiency, photovolta ... See more

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