Energy conversion properties of ZnSiP 2 , a lattice-matched material for silicon-based tandem photovoltaics

ZnSiP 2 demonstrates promising potential as an optically active material on silicon. There has been a longstanding need for wide band gap materials that can be integrated with Si for tandem photovoltaics and other optoelectronic applications. ZnSiP 2 is an inexpensive, earth abundant, wide band gap material that is stable and lattice matched with silicon. This conference proceeding summarizes our PV-relevant work on bulk single crystal ZnSiP 2 , highlighting the key findings and laying the ground work for integration into Si-based tandem devices.