Comparison of holographic lens and filter systems for lateral spectrum splitting

Shelby Vorndran, Benjamin Chrysler, Raymond K. Kostuk

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

Abstract

Spectrum splitting is an approach to increasing the conversion efficiency of a photovoltaic (PV) system. Several methods can be used to perform this function which requires efficient spatial separation of different spectral bands of the incident solar radiation. In this paper several of holographic methods for implementing spectrum splitting are reviewed along with the benefits and disadvantages associated with each approach. The review indicates that a volume holographic lens has many advantages for spectrum splitting in terms of both power conversion efficiency and energy yield. A specific design for a volume holographic spectrum splitting lens is discussed for use with high bandgap InGaP and low bandgap silicon PV cells. The holographic lenses are modeled using rigorous coupled wave analysis, and the optical efficiency is evaluated using non-sequential raytracing. A proof-of-concept off-axis holographic lens is also recorded in dichromated gelatin film and the spectral diffraction efficiency of the hologram is measured with multiple laser sources across the diffracted spectral band. The experimental volume holographic lens (VHL) characteristics are compared to an ideal spectrum splitting filter in terms of power conversion efficiency and energy yield in environments with high direct normal incidence (DNI) illumination and high levels of diffuse illumination. The results show that the experimental VHL can achieve 62.5% of the ideal filter power conversion efficiency, 64.8% of the ideal filter DNI environment energy yield, and 57.7% of the ideal diffuse environment energy yield performance.

Original languageEnglish (US)
Title of host publicationNext Generation Technologies for Solar Energy Conversion VII
EditorsGavin Conibeer, Oleg V. Sulima
PublisherSPIE
ISBN (Electronic)9781510602656
DOIs
StatePublished - Jan 1 2016
EventNext Generation Technologies for Solar Energy Conversion VII - San Diego, United States
Duration: Aug 29 2016Aug 31 2016

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume9937
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Other

OtherNext Generation Technologies for Solar Energy Conversion VII
CountryUnited States
CitySan Diego
Period8/29/168/31/16

Keywords

  • Solar energy
  • holographic optical elements
  • spectrum splitting

ASJC Scopus subject areas

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

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  • Cite this

    Vorndran, S., Chrysler, B., & Kostuk, R. K. (2016). Comparison of holographic lens and filter systems for lateral spectrum splitting. In G. Conibeer, & O. V. Sulima (Eds.), Next Generation Technologies for Solar Energy Conversion VII [99370K] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 9937). SPIE. https://doi.org/10.1117/12.2236105