Design of folded holographic spectrum-splitting photovoltaic system for direct and diffuse illumination conditions

Yuechen Wu, Shelby D. Vorndran, Juan M. Russo, Silvana Ayala, Raymond K Kostuk

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

Spectrum-splitting is a beneficial technique to increase the efficiency and reduce the cost of photovoltaic (PV) systems. This method divides the incident solar spectrum into spectral components that are spatially separated and directed to PV cells with matching spectral responsivity characteristics. This approach eliminates problems associated with current and lattice matching that must be maintained in tandem multi-junction systems. In this paper, a two-junction holographic spectrum-splitting photovoltaic system is demonstrated with a folded PV geometry. The system is designed to use both direct and diffuse solar irradiation. It consists of holographic elements, a wedge-shaped optical guide, and PV substrates with back reflectors. The holographic elements and back reflectors spatially separate the incident solar spectrum and project spectral components onto matching PV cell types. In addition, the wedge-shaped optical guide traps diffuse illumination inside the system to increase absorption. In this paper, the wedge spectrum splitting system is analyzed using tabulated data for InGaP2/GaAs cells with direct illumination combined with experimental data for reflection volume holograms. A system efficiency of 31.42% is obtained with experimental reflection hologram data. This efficiency is a 21.42% improvement over a similar system that uses one PV cell with the highest efficiency (GaAs). Simulation results show large acceptance angle for both in-plane and out-of plane directions. Simulation of the output power of the system with different configurations at different times of the year are also presented.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
PublisherSPIE
Volume9175
ISBN (Print)9781628412024
DOIs
StatePublished - 2014
EventHigh and Low Concentrator Systems for Solar Energy Applications IX - San Diego, United States
Duration: Aug 19 2014Aug 20 2014

Other

OtherHigh and Low Concentrator Systems for Solar Energy Applications IX
CountryUnited States
CitySan Diego
Period8/19/148/20/14

Fingerprint

Photovoltaic System
Photovoltaic cells
Illumination
photovoltaic cells
Lighting
illumination
wedges
solar spectra
Holograms
reflectors
Wedge
Cell
Hologram
Reflector
Gallium Arsenide
acceptability
simulation
traps
Irradiation
Responsivity

Keywords

  • holographic optical filter
  • light trapping
  • Solar energy
  • spectrum-splitting

ASJC Scopus subject areas

  • Applied Mathematics
  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Wu, Y., Vorndran, S. D., Russo, J. M., Ayala, S., & Kostuk, R. K. (2014). Design of folded holographic spectrum-splitting photovoltaic system for direct and diffuse illumination conditions. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 9175). [91750G] SPIE. https://doi.org/10.1117/12.2060882

Design of folded holographic spectrum-splitting photovoltaic system for direct and diffuse illumination conditions. / Wu, Yuechen; Vorndran, Shelby D.; Russo, Juan M.; Ayala, Silvana; Kostuk, Raymond K.

Proceedings of SPIE - The International Society for Optical Engineering. Vol. 9175 SPIE, 2014. 91750G.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Wu, Y, Vorndran, SD, Russo, JM, Ayala, S & Kostuk, RK 2014, Design of folded holographic spectrum-splitting photovoltaic system for direct and diffuse illumination conditions. in Proceedings of SPIE - The International Society for Optical Engineering. vol. 9175, 91750G, SPIE, High and Low Concentrator Systems for Solar Energy Applications IX, San Diego, United States, 8/19/14. https://doi.org/10.1117/12.2060882
Wu Y, Vorndran SD, Russo JM, Ayala S, Kostuk RK. Design of folded holographic spectrum-splitting photovoltaic system for direct and diffuse illumination conditions. In Proceedings of SPIE - The International Society for Optical Engineering. Vol. 9175. SPIE. 2014. 91750G https://doi.org/10.1117/12.2060882
Wu, Yuechen ; Vorndran, Shelby D. ; Russo, Juan M. ; Ayala, Silvana ; Kostuk, Raymond K. / Design of folded holographic spectrum-splitting photovoltaic system for direct and diffuse illumination conditions. Proceedings of SPIE - The International Society for Optical Engineering. Vol. 9175 SPIE, 2014.
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