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Disruption is often a bad word in established industries, and electricity generation is no exception. But with silicon solar cells getting ever closer to efficiency limits, innovative solutions are needed.
Cheap, efficient, and stable thin photovoltaics that use abundant and non-toxic materials can deliver widespread renewable energy. New results using Earth-abundant and potentially cheap ZnO/Sb2Se3 solar cells indicate promising levels of stability.
Reabsorption losses have long been holding back the commercial viability of luminescent solar concentrators. Now, non-toxic silicon-based quantum dots with enhanced Stokes shift may enable the technology to enjoy practical implementation.