查看文章

In this study we quantify the possible gains in cell performance obtained with an architecture based on through-cell via contacts (TCVC). We review how the front metallization of solar cells introduces a compromise between shadowing and resistive losses. The work models the trade-offs that directly impacts the device efficiency. Gains at the cell level are important because they are highly leveraged in HCPV systems. For a very high illumination flux, a standard cell optimization leads to a large metallized area for finger grid designs. Our modeling shows that the back-contact architectures can offer an interesting alternative. The TCVCs were evaluated using a multijunction InGaP/InGaAs/Ge solar cell (MJSC). The proposed architecture is modeled and compared with a conventional grid design. The absolute efficiencies of the different solar cells were calculated to quantify their shadowing and resistive losses. A …