Achromatic lens casting nearly uniform irradiance over MJ solar cells

Victoria Pérez, Marta and Vallerotto, Guido and Askins, Stephen and Antón Hernandez, Ignacio and Sala Pano, Gabriel (2017). Achromatic lens casting nearly uniform irradiance over MJ solar cells. In: "33rd European Photovoltaic Solar Energy Conference and Exhibition (EU PVSEC2017)", 25/09/2017 - 29/09/2017, Amsterdam, Netherlands. pp. 30-33.

Description

Title: Achromatic lens casting nearly uniform irradiance over MJ solar cells
Author/s:
  • Victoria Pérez, Marta
  • Vallerotto, Guido
  • Askins, Stephen
  • Antón Hernandez, Ignacio
  • Sala Pano, Gabriel
Item Type: Presentation at Congress or Conference (Article)
Event Title: 33rd European Photovoltaic Solar Energy Conference and Exhibition (EU PVSEC2017)
Event Dates: 25/09/2017 - 29/09/2017
Event Location: Amsterdam, Netherlands
Title of Book: 33rd European Photovoltaic Solar Energy Conference and Exhibition (EU PVSEC2017)
Date: 2017
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

The Achromatic Doublet on Glass (ADG) Fresnel lens is a novel concentrator that combines a low-dispersion elastomer and a high-dispersion plastic to obtain a Fresnel lens with reduced chromatic aberration, and consequently, increased concentration capability. This article summarizes the outcomes of the ray-tracing simulations as well as the experimental results obtained within the past two years. In addition, the uniformity of the irradiance profile cast by the lens onto Multi-Junction solar cells is analyzed and compared to that of a classic Silicone on Glass (SoG) Fresnel lens used as a benchmark. The more uniform profile cast by the achromatic lens requires lower horizontal current transportation across the MJ solar cell since the photocurrent distributions for the top and middle subcells are similar. It has been experimentally shown that, although the Fill Factor (FF) of the solar cell illuminated by the SoG Fresnel lens strongly depends on the lens-to-cell distance (showing a characteristic W-shaped curve), for the ADG Fresnel lens, the FF remains high at every position. This implies a higher tolerance not only to errors in the module assembly but also to variations in the temperature of the primary lens.

Funding Projects

TypeCodeAcronymLeaderTitle
Horizon 2020640873CPVMatchFRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.VConcentrating Photovoltaic modules using advanced technologies and cells for highest efficiencies
Government of SpainENE2013-45229-PACROMALENSUnspecifiedUnspecified

More information

Item ID: 50924
DC Identifier: http://oa.upm.es/50924/
OAI Identifier: oai:oa.upm.es:50924
Official URL: https://www.eupvsec-planner.com/presentations/c43587/achromatic_lens_casting_nearly_uniform_irradiance_over_mj_solar_cells.htm
Deposited by: Memoria Investigacion
Deposited on: 13 Nov 2018 16:45
Last Modified: 07 Apr 2019 09:09
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