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Hybrid organic—inorganic perovskites: low-cost semiconductors with intriguing charge-transport properties

An Erratum to this article was published on 16 February 2016

Abstract

Solution-processed hybrid organic–inorganic perovskites (HOIPs) exhibit long electronic carrier diffusion lengths, high optical absorption coefficients and impressive photovoltaic device performance. Recent results allow us to compare and contrast HOIP charge-transport characteristics to those of III–V semiconductors — benchmarks of photovoltaic (and light-emitting and laser diode) performance. In this Review, we summarize what is known and unknown about charge transport in HOIPs, with particular emphasis on their advantages as photovoltaic materials. Experimental and theoretical findings are integrated into one narrative, in which we highlight the fundamental questions that need to be addressed regarding the charge-transport properties of these materials and suggest future research directions.

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Figure 1: Timeline of research into the optoelectronic properties of HOIPs and important discoveries in the development of HOIP solar cells.
Figure 2: Electronic structure and closely related physical properties of HOIPs.
Figure 3: Charge-transport parameters of various HOIPs that are critical to device performance.
Figure 4: Trap states and densities in HOIPs.
Figure 5: Effects of processing on charge-transport parameters.
Figure 6: Hysteresis and its possible microscopic origins.

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Acknowledgements

The authors thank M. Bonn, E. Canovas, V. Podzorov, O. Yaffe and S. Tretiak, for sharing preprints of their results. They thank I. Balberg, A. Kahn, L. Leiserowitz, I. Lubomirsky, O. M. Stafsudd and X. Y. Zhu for illuminating discussions. The authors' work is or was supported by the Leona M. and Harry B. Helmsley Charitable Trust, the Israel Ministry of Science, Israel National Nano-Initiative, a research grant from Dana and Yossie Hollander and the Austrian Science Fund (FWF):J3608−N20 (to D.A.E.). T.M.B. thanks the WIS for an Alternative Sustainable Energy Research Initiative (AERI) postdoctoral fellowship. D.C. holds the Sylvia and Rowland Schaefer Chair in Energy Research.

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Brenner, T., Egger, D., Kronik, L. et al. Hybrid organic—inorganic perovskites: low-cost semiconductors with intriguing charge-transport properties. Nat Rev Mater 1, 15007 (2016). https://doi.org/10.1038/natrevmats.2015.7

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