Solar Junction’s Proprietary Materials Platform
Solar Junction’s lattice-matched solar cell increases yield, reliability, and efficiency by avoiding strain and defects common with metamorphic, or non-lattice matched, structures. Optimizing material quality is essential for lowering long-term epitaxial and wafer-processing costs, and for ensuring long-term reliability.
Multi-Junction Solar Cell
Solar Junction’s multi-junction solar cell is comprised of multiple individual solar cells grown on top of each other. Each sub-cell is composed of a unique material that absorbs a specific portion of the solar spectrum. The top cell absorbs blue light, while the bottom cell absorbs infrared light. Unlike the single junction silicon cell, Solar Junction’s multi-junction technology enables a roadmap to ever-increasing efficiency gains. By adding additional sub-cells designed to absorb increasingly narrow segments of the solar spectrum, we are in the unique position to drive solar cell efficiencies to 50% and beyond.
Solar Junction’s proprietary dilute nitride material is bandgap tunable from 0.8 eV to 1.25 eV, enabling high material quality for solar cells, a superior efficiency roadmap, and a wide range of applications in the infrared technology space. The following chart demonstrates: