Towards 35% Efficient Concentrator Modules Based On LPI Köhler Concentrators With External Confinement Cavities

Zamora Herranz, Pablo and Benitez Gimenez, Pablo and Miñano Dominguez, Juan Carlos and Li, Yang and Buljan, Marina (2011). Towards 35% Efficient Concentrator Modules Based On LPI Köhler Concentrators With External Confinement Cavities. In: "7th International Conference on Concentrating Photovoltaic Systems (CPV-7)", 04/04/2011 - 06/04/2011, Las Vegas, NV, EEUU. pp. 109-112. https://doi.org/10.1063/1.3658306.

Description

Title: Towards 35% Efficient Concentrator Modules Based On LPI Köhler Concentrators With External Confinement Cavities
Author/s:
  • Zamora Herranz, Pablo
  • Benitez Gimenez, Pablo
  • Miñano Dominguez, Juan Carlos
  • Li, Yang
  • Buljan, Marina
Item Type: Presentation at Congress or Conference (Article)
Event Title: 7th International Conference on Concentrating Photovoltaic Systems (CPV-7)
Event Dates: 04/04/2011 - 06/04/2011
Event Location: Las Vegas, NV, EEUU
Title of Book: Proceedings of 7th International Conference on Concentrating Photovoltaic Systems (CPV-7)
Date: 2011
Subjects:
Faculty: E.T.S.I. Telecomunicación (UPM)
Department: Electrónica Física
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Multijunction solar cells present a certain reflectivity on its surface that lowers its light absorption. This reflectivity produces a loss in electrical efficiency and thus a loss in global energy production for CPV systems. We present here an optical design for recovering this portion of reflected light, and thus leading to a system efficiency increase. This new design is based on an external confinement cavity, an optical element able to redirect the light reflected by the cell towards its surface again. We have proven the excellent performance of these cavities integrated in CPV modules offering outstanding results: 33.2% module electrical efficiency @Tcell  =  25 °C and relative efficiency and Isc gains of over 6%

More information

Item ID: 13130
DC Identifier: http://oa.upm.es/13130/
OAI Identifier: oai:oa.upm.es:13130
DOI: 10.1063/1.3658306
Deposited by: Memoria Investigacion
Deposited on: 30 Nov 2012 09:38
Last Modified: 21 Apr 2016 12:26
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