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Metal-halide perovskites for photovoltaic and light-emitting devices



Metal-halide perovskites are crystalline materials originally developed out of scientific curiosity. Unexpectedly, solar cells incorporating these perovskites are rapidly emerging as serious contenders to rival the leading photovoltaic technologies. Power conversion efficiencies have jumped from 3% to over 20% in just four years of academic research. Here, we review the rapid progress in perovskite solar cells, as well as their promising use in light-emitting devices. In particular, we describe the broad tunability and fabrication methods of these materials, the current understanding of the operation of state-of-the-art solar cells and we highlight the properties that have delivered light-emitting diodes and lasers. We discuss key thermal and operational stability challenges facing perovskites, and give an outlook of future research avenues that might bring perovskite technology to commercialization.

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Figure 1: Perovskite processing and film formation.
Figure 2: Tuning of the bandgap.
Figure 3: Operational principles of perovskite solar cells.
Figure 4: Material and device stability.
Figure 5: Relationship between perovskite solar cells and different photovoltaic technologies.
Figure 6: Perovskite light-emitting devices.


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The research leading to these results has received funding from the European Union Seventh Framework Programme (FP7/2007-2013) under grant agreement no. 604032 of the MESO project, the Engineering and Physical Sciences Research Council (EPSRC), the European Research Council, and Oxford Photovoltaics. The authors thank T. O'Malley, J. Jean and P. R. Brown for helpful discussions, and M. T. Klug for assistance with figure preparation.

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Stranks, S., Snaith, H. Metal-halide perovskites for photovoltaic and light-emitting devices. Nature Nanotech 10, 391–402 (2015).

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