Mobility-Lifetime Products in MAPbI3 Films

Igal Levine; Satyajit Gupta; Thomas M. Brenner; Doron Azulay; Oded Millo; Gary Hodes; David Cahen; Isaac Balberg

doi:10.1021/acs.jpclett.6b02287

Mobility-Lifetime Products in MAPbI₃ Films

Igal Levine, Satyajit Gupta, Thomas M. Brenner, Doron Azulay, Oded Millo, Gary Hodes, David Cahen, Isaac Balberg^*

^*Corresponding author for this work

Racah Institute of Physics

Research output: Contribution to journal › Article › peer-review

53 Scopus citations

Abstract

Photovoltaic solar cells operate under steady-state conditions that are established during the charge carrier excitation and recombination. However, to date no model of the steady-state recombination scenario in halide perovskites has been proposed. In this Letter we present such a model that is based on a single type of recombination center, which is deduced from our measurements of the illumination intensity dependence of the photoconductivity and the ambipolar diffusion length in those materials. The relation between the present results and those from time-resolved measurements, such as photoluminescence that are commonly reported in the literature, is discussed.

Original language	American English
Pages (from-to)	5219-5226
Number of pages	8
Journal	Journal of Physical Chemistry Letters
Volume	7
Issue number	24
DOIs	https://doi.org/10.1021/acs.jpclett.6b02287
State	Published - 15 Dec 2016

Bibliographical note

Publisher Copyright:
© 2016 American Chemical Society.

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10.1021/acs.jpclett.6b02287

Cite this

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AU - Levine, Igal

AU - Gupta, Satyajit

AU - Brenner, Thomas M.

AU - Azulay, Doron

AU - Millo, Oded

AU - Hodes, Gary

AU - Cahen, David

AU - Balberg, Isaac

PY - 2016/12/15

Y1 - 2016/12/15

N2 - Photovoltaic solar cells operate under steady-state conditions that are established during the charge carrier excitation and recombination. However, to date no model of the steady-state recombination scenario in halide perovskites has been proposed. In this Letter we present such a model that is based on a single type of recombination center, which is deduced from our measurements of the illumination intensity dependence of the photoconductivity and the ambipolar diffusion length in those materials. The relation between the present results and those from time-resolved measurements, such as photoluminescence that are commonly reported in the literature, is discussed.

AB - Photovoltaic solar cells operate under steady-state conditions that are established during the charge carrier excitation and recombination. However, to date no model of the steady-state recombination scenario in halide perovskites has been proposed. In this Letter we present such a model that is based on a single type of recombination center, which is deduced from our measurements of the illumination intensity dependence of the photoconductivity and the ambipolar diffusion length in those materials. The relation between the present results and those from time-resolved measurements, such as photoluminescence that are commonly reported in the literature, is discussed.

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