Modeling of GaAs/Silicon PVMirror Tandem System: A Case Study

Conference · Fri Jun 17 00:00:00 EDT 2016

DOI:https://doi.org/10.1109/PVSC.2016.7749578· OSTI ID:1413650

Yu, Zhengshan (Jason); Fisher, Kathryn; Holman, Zachary

We propose a new, optically coupled tandem architecture with a silicon “PVMirror” as the bottom cell. 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. 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 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.

• Research Organization: Arizona State Univ., Tempe, AZ (United States)
• Sponsoring Organization: USDOE Office of Energy Efficiency and Renewable Energy (EERE), Renewable Power Office. Solar Energy Technologies Office
• DOE Contract Number: EE0007368
• OSTI ID: 1413650
• Report Number(s): DOE-ASU-7368-1
• Resource Relation: Conference: 43rd IEEE PVSC Proc. (2016).
• Country of Publication: United States
• Language: English