Hardness

Is it good for photovoltaic panels to have high silicon crystal hardness

These defects are harmful for solar cell performance, and are especially detrimental to high efficiency cell designs that are very sensitive to recombination in the silicon materials. Department of Energy (DOE) Solar Energy Technologies Office (SETO) supports crystalline silicon photovoltaic (PV) research and development efforts that lead to market-ready technologies. During this period, the solar industry has witnessed technological advances, cost reductions, and increased awareness of renewable energy's benefits. Silicon materials are a key cost component, as well as a major efficiency-limiting factor, for solar cells. It is a metalloid and a semiconductor besides being abundant and having a high melting point.