Next Article in Journal
An Analysis of Frequency Variations and its Implications on Connected Equipment for a Nanogrid during Islanded Operation
Previous Article in Journal
A Theoretical Study on Performance and Design Optimization of Linear Dielectric Compound Parabolic Concentrating Photovoltaic Systems
Article Menu
Issue 9 (September) cover image

Export Article

Open AccessArticle
Energies 2018, 11(9), 2455; https://doi.org/10.3390/en11092455

Ray Tracing Comparison between Triple-Junction and Four-Junction Solar Cells in PMMA Fresnel-Based High-CPV Units

IDEA Solar Research Group, Centre for Advanced Studies in Energy and Environment (CEAEMA), Electronics and Automation Department, Universidad de Jaén, Las Lagunillas Campus, Jaén 23071, Spain
*
Authors to whom correspondence should be addressed.
Received: 6 July 2018 / Revised: 13 September 2018 / Accepted: 14 September 2018 / Published: 15 September 2018
(This article belongs to the Section Sustainable Energy)
Full-Text   |   PDF [3979 KB, uploaded 15 September 2018]   |  

Abstract

The recent development of wafer bonded four-junction concentrator solar cells (FJSCs) with record efficiency among all the existent photovoltaic (PV) cells offers new possibilities for improving the High Concentrator PV (HCPV) technology. However, the concentrator optical systems utilized in HCPV modules may have to be adapted to the new requirements of FJSC in order to properly take advantage of the increased number of p-n junctions. This research theoretically compares two identical optical concentrator systems, a Frensel lens plus a kind of refractive SILO (SIngle-Lens-Optical element) secondary (both made of PMMA, poly(methyl methacrylate)), which are equipped with a typical triple-junction concentrator solar cell (TJSC) in the one case, and with an FJSC in the other case. Both HCPV units are analyzed through ray tracing optical simulations applying an exhaustive optical modelling that takes into account the spectral responses of the different subcells within the multi-junction cells. The HCPV unit with the FJSC and PMMA SOE (secondary optical element) shows much less efficiency than that with the TJSC due to the light absorption through the PMMA SOE in the wavelength range of the bottom subcell. Therefore, PMMA SOEs may be not appropriate for FJSC in general. View Full-Text
Keywords: high concentrator photovoltaics; optical modelling; Fresnel lens; refractive secondary optics; triple-junction cells; four-junction cells high concentrator photovoltaics; optical modelling; Fresnel lens; refractive secondary optics; triple-junction cells; four-junction cells
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Ferrer-Rodríguez, J.P.; Valera, A.; Fernández, E.F.; Almonacid, F.; Pérez-Higueras, P. Ray Tracing Comparison between Triple-Junction and Four-Junction Solar Cells in PMMA Fresnel-Based High-CPV Units. Energies 2018, 11, 2455.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Energies EISSN 1996-1073 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top