High energy yield bifacial spectrum-splitting photovoltaic system

Benjamin D. Chrysler, Raymond K. Kostuk

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


In this paper a photovoltaic system is proposed that achieves high energy yield by integrating bifacial silicon cells into a spectrum-splitting module. Spectrum splitting is accomplished using volume holographic optical elements to spectrally divide sunlight onto an array of photovoltaic cells with different bandgap energies. Light that is reflected from the ground surface onto the rear side of the module is converted by the bifacial silicon cells. The energy yield of the system is optimized by tuning the volume holographic element parameters, such as film thickness, index modulation, and construction point source positions. An example is presented for utility-scale illumination parameters in Tucson, Arizona, that attains an energy yield of 1010 kyrw··mhr2, which is 32.8% of the incident solar insolation.

Original languageEnglish (US)
Pages (from-to)G8-G18
JournalApplied optics
Issue number22
StatePublished - 2020

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Engineering (miscellaneous)
  • Electrical and Electronic Engineering


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