Abstract
The recent development of inexpensive perovskite photovoltaic (PV) cells at a variety of band gap energies has opened the prospects for commercially viable spectrum-splitting PV systems. A variety of cell configurations exist for implementing spectrum splitting in PV modules. In this article, 3-junction and 4-junction hybrid spectrum-splitting systems are proposed that use volume holographic lens arrays for lateral spectral separation and absorptive filtering in semitransparent perovskite PV cells for vertical spectral separation. A 3-junction hybrid system is shown to have greater conversion efficiency (28.7%) than comparable systems using completely lateral (25.6%) or completely stacked (26.9%) cell arrangements. It is shown that a 4-junction hybrid system has a hypothetical conversion efficiency of 30.0% using perovskite PV cells that have been experimentally demonstrated in the literature with energy band gaps of 1.25 eV, 1.55 eV, 1.72 eV, and 2.30 eV.
Original language | English (US) |
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Pages (from-to) | 1477-1486 |
Number of pages | 10 |
Journal | IEEE Journal of Photovoltaics |
Volume | 12 |
Issue number | 6 |
DOIs | |
State | Published - Nov 1 2022 |
Keywords
- Efficiency
- multijunction
- optics
- perovskites
- photovoltaics (PVs)
- spectrum-splitting
- tandem
- transparent conductive oxide (TCO)
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Electrical and Electronic Engineering