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PB - Institute of Electrical and Electronics Engineers Inc. T3 - 2017 IEEE 44th Photovoltaic Specialist Conference, PVSC 2017īT - 2017 IEEE 44th Photovoltaic Specialist Conference, PVSC 2017 A sensitivity analysis indicates that the PVMirror tandem is most sensitive to the GaAs cell performance and dichroic mirror cut-off wavelength but relatively insensitive to the silicon cell performance.

Simulating such a system with record GaAs and silicon cells and an ideal dichroic mirror shows the tandem efficiency can reach over 36% with no diffuse light and over 30% with 20% diffuse light. A silicon PVMirror is a curved silicon module with an integrated dichroic mirror that transmits near-infrared light to the silicon cells and reflects and focuses visible light onto a GaAs receiver. A sensitivity analysis indicates that the PVMirror tandem is most sensitive to the GaAs cell performance and dichroic mirror cut-off wavelength but relatively insensitive to the silicon cell performance.ĪB - We propose a new, optically coupled tandem architecture with a silicon 'PVMirror' as the bottom cell. N2 - We propose a new, optically coupled tandem architecture with a silicon 'PVMirror' as the bottom cell. Department of Energy, under Award Number DE-AR0000474, and NSF/DOE and QESST under grant Number EEC-1041895. The information, data, or work presented herein was funded in part by the Advanced Research Projects Agency- Energy (ARPA-E), U.S. The information, data, or work presented herein was funded in part by the Advanced Research Projects Agency-Energy (ARPA-E), U.S. T2 - 44th IEEE Photovoltaic Specialist Conference, PVSC 2017 72 The effect of the quaternary alloy was to reduce the valence band offset relative to lattice matched GaAs and thus increase the cut-off wavelength. In 0.29 As 0.39 P 0.61 QWIP was grown by LP-MOCVD with 50 periods of 30 Å wide GaAs quantum wells separated by 280 Å wide GaInAsP (Eg 1.8 eV at T300 K) barriers. T1 - Modeling of GaAs/silicon PVMirror tandem system To increase the cut-off wavelength, a lattice-matched GaAs/Ga 0.71.