| AVS 58th Annual International Symposium and Exhibition | |
| Energy Frontiers Focus Topic | Thursday Sessions |
| Session EN+MS+VT-ThA |
| Session: | Photovoltaics Manufacturing |
| Presenter: | Salah Bedair, North Carolina State University |
| Correspondent: | Click to Email |
The developments of multi junction solar cell will be outlined. The major challenges facing this structure will be discussed. There are several current approaches to improve the efficiency of MJ solar cells. They include: lattice matched structure, metamorphic s structure, inverted structure and GaAsN based approach. We will discuss the concept of strain balanced strained layer super lattices in improving the conversing efficiencies of lattice matched MJ solar cells.
The advantages and the limitations of each of these approaches will be presented and discussed. We also discuss the limitations facing the applications of MJ solar cell at high solar concentrations. We will address the tunnel junction issues for concentration exceeding 1000 suns. Series resistance and heat dissipation issues will also be outlined.
Finally the cost issues will be addressed with their limitations on the potential applications of this approached.