Materials availability expands the opportunity for large-scale photovoltaics deployment.

@article{Wadia2009MaterialsAE,
  title={Materials availability expands the opportunity for large-scale photovoltaics deployment.},
  author={Cyrus Wadia and A. Paul Alivisatos and Daniel M. Kammen},
  journal={Environmental science \& technology},
  year={2009},
  volume={43 6},
  pages={
          2072-7
        }
}
Solar photovoltaics have great promise for a low-carbon future but remain expensive relative to other technologies. Greatly increased penetration of photovoltaics into global energy markets requires an expansion in attention from designs of high-performance to those that can deliver significantly lower cost per kilowatt-hour. To evaluate a new set of technical and economic performance targets, we examine material extraction costs and supply constraints for 23 promising semiconducting materials… 

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