Extended carrier lifetimes and diffusion in hybrid perovskites revealed by Hall effect and photoconductivity measurements

Y. Chen; H. T. Yi; X. Wu; R. Haroldson; Y. N. Gartstein; Y. I. Rodionov; K. S. Tikhonov; A. Zakhidov; X. -Y. Zhu; V. Podzorov

doi:10.1038/ncomms12253

Nature Communications (Aug 2016)

Extended carrier lifetimes and diffusion in hybrid perovskites revealed by Hall effect and photoconductivity measurements

Y. Chen,
H. T. Yi,
X. Wu,
R. Haroldson,
Y. N. Gartstein,
Y. I. Rodionov,
K. S. Tikhonov,
A. Zakhidov,
X. -Y. Zhu,
V. Podzorov

Affiliations

Y. Chen: Department of Physics, Rutgers University
H. T. Yi: Department of Physics, Rutgers University
X. Wu: Department of Chemistry, Columbia University
R. Haroldson: Department of Physics and NanoTech Institute, University of Texas at Dallas
Y. N. Gartstein: Department of Physics and NanoTech Institute, University of Texas at Dallas
Y. I. Rodionov: The Institute for Theoretical and Applied Electrodynamics, The National University of Science and Technology, MISIS
K. S. Tikhonov: Landau Institute for Theoretical Physics
A. Zakhidov: Department of Physics and NanoTech Institute, University of Texas at Dallas
X. -Y. Zhu: Department of Chemistry, Columbia University
V. Podzorov: Department of Physics, Rutgers University

DOI: https://doi.org/10.1038/ncomms12253
Journal volume & issue: Vol. 7, no. 1
pp. 1 – 9

Abstract

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Hybrid perovskites exhibit long carrier diffusion lengths and lifetimes. Here, Chen et al. show experimentally that carrier recombination in perovskites is far from Langevin and closer to the best direct-bandgap semiconductors, which can be explained by the dipolar polaronic nature of charge carriers.

Published in Nature Communications

ISSN: 2041-1723 (Online)
Publisher: Nature Portfolio
Country of publisher: United Kingdom
LCC subjects: Science
Website: https://www.nature.com/ncomms/

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