Electron and Hole Drift Mobility Measurements on Methylammonium Lead Iodide Perovskite Solar Cells

Mengjin Yang; Kai Zhu; Brian Maynard; Qi Long; Eric Schiff; Ranjith Kottokkaran; Hisham Abbas; Vikram Dalal

doi:10.1063/1.4948344

Electron and Hole Drift Mobility Measurements on Methylammonium Lead Iodide Perovskite Solar Cells

Mengjin Yang
, Kai Zhu
, Brian Maynard
, Qi Long
, Eric Schiff
, Ranjith Kottokkaran
, Hisham Abbas
, Vikram Dalal

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

62 Scopus Citations

Abstract

We report nanosecond domain time-of-flight measurements of electron and hole photocarriers in methylammonium lead iodide perovskite solar cells. The mobilities ranged from 0.06 to 1.4 cm²/Vs at room temperature, but there is little systematic difference between the two carriers. We also find that the drift mobilities are dispersive (time-dependent). The dispersion parameters are in the range of 0.4-0.7, and they imply that terahertz domain mobilities will be much larger than nanosecond domain mobilities. The temperature-dependences of the dispersion parameters are consistent with confinement of electron and hole transport to fractal-like spatial networks within nanoseconds of their photogeneration.

Original language	American English
Article number	Article No. 173505
Number of pages	4
Journal	Applied Physics Letters
Volume	108
Issue number	17
DOIs	https://doi.org/10.1063/1.4948344 https://doi.org/10.1063/1.4948344
State	Published - 25 Apr 2016

Bibliographical note

Publisher Copyright:
© 2016 Author(s).

NLR Publication Number

NREL/JA-5900-66605

Keywords

dielectric oxides
hole mobility
solar cells
temperature measurement
time of flight mass spectrometry

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title = "Electron and Hole Drift Mobility Measurements on Methylammonium Lead Iodide Perovskite Solar Cells",

abstract = "We report nanosecond domain time-of-flight measurements of electron and hole photocarriers in methylammonium lead iodide perovskite solar cells. The mobilities ranged from 0.06 to 1.4 cm2/Vs at room temperature, but there is little systematic difference between the two carriers. We also find that the drift mobilities are dispersive (time-dependent). The dispersion parameters are in the range of 0.4-0.7, and they imply that terahertz domain mobilities will be much larger than nanosecond domain mobilities. The temperature-dependences of the dispersion parameters are consistent with confinement of electron and hole transport to fractal-like spatial networks within nanoseconds of their photogeneration.",

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author = "Mengjin Yang and Kai Zhu and Brian Maynard and Qi Long and Eric Schiff and Ranjith Kottokkaran and Hisham Abbas and Vikram Dalal",

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T1 - Electron and Hole Drift Mobility Measurements on Methylammonium Lead Iodide Perovskite Solar Cells

AU - Yang, Mengjin

AU - Zhu, Kai

AU - Maynard, Brian

AU - Long, Qi

AU - Schiff, Eric

AU - Kottokkaran, Ranjith

AU - Abbas, Hisham

AU - Dalal, Vikram

PY - 2016/4/25

Y1 - 2016/4/25

N2 - We report nanosecond domain time-of-flight measurements of electron and hole photocarriers in methylammonium lead iodide perovskite solar cells. The mobilities ranged from 0.06 to 1.4 cm2/Vs at room temperature, but there is little systematic difference between the two carriers. We also find that the drift mobilities are dispersive (time-dependent). The dispersion parameters are in the range of 0.4-0.7, and they imply that terahertz domain mobilities will be much larger than nanosecond domain mobilities. The temperature-dependences of the dispersion parameters are consistent with confinement of electron and hole transport to fractal-like spatial networks within nanoseconds of their photogeneration.

AB - We report nanosecond domain time-of-flight measurements of electron and hole photocarriers in methylammonium lead iodide perovskite solar cells. The mobilities ranged from 0.06 to 1.4 cm2/Vs at room temperature, but there is little systematic difference between the two carriers. We also find that the drift mobilities are dispersive (time-dependent). The dispersion parameters are in the range of 0.4-0.7, and they imply that terahertz domain mobilities will be much larger than nanosecond domain mobilities. The temperature-dependences of the dispersion parameters are consistent with confinement of electron and hole transport to fractal-like spatial networks within nanoseconds of their photogeneration.

KW - dielectric oxides

KW - hole mobility

KW - solar cells

KW - temperature measurement

KW - time of flight mass spectrometry

UR - https://www.scopus.com/pages/publications/84968619419

U2 - 10.1063/1.4948344

DO - 10.1063/1.4948344

M3 - Article

AN - SCOPUS:84968619419

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VL - 108

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 17

M1 - Article No. 173505

ER -

Electron and Hole Drift Mobility Measurements on Methylammonium Lead Iodide Perovskite Solar Cells

Abstract

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Keywords

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