Charge-Carrier Dynamics and Mobilities in Formamidinium Lead Mixed-Halide Perovskites

Waqaas Rehman; Rebecca L. Milot; Giles E. Eperon; Christian Wehrenfennig; Jessica L. Boland; Henry J. Snaith; Michael B. Johnston; Laura M. Herz

doi:10.1002/adma.201502969

Charge-Carrier Dynamics and Mobilities in Formamidinium Lead Mixed-Halide Perovskites

Waqaas Rehman, Rebecca L. Milot, Giles E. Eperon, Christian Wehrenfennig, Jessica L. Boland, Henry J. Snaith, Michael B. Johnston, Laura M. Herz

Oxford University

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

Abstract

The mixed‐halide perovskite FAPb(BryI1–y)3 is attractive for color‐tunable and tandem solar cells. Bimolecular and Auger charge‐carrier recombination rate constants strongly correlate with the Br content, y, suggesting a link with electronic structure. FAPbBr3 and FAPbI3 exhibit charge‐carrier mobilities of 14 and 27 cm2 V−1 s−1 and diffusion lengths exceeding 1 μm, while mobilities across the mixed Br/I system depend on crystalline phase disorder.

Original language	English
Pages (from-to)	7938-7944
Journal	Advanced Materials
Volume	27
Issue number	48
DOIs	https://doi.org/10.1002/adma.201502969
Publication status	Published - 22 Dec 2015

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title = "Charge-Carrier Dynamics and Mobilities in Formamidinium Lead Mixed-Halide Perovskites",

abstract = "The mixed‐halide perovskite FAPb(BryI1–y)3 is attractive for color‐tunable and tandem solar cells. Bimolecular and Auger charge‐carrier recombination rate constants strongly correlate with the Br content, y, suggesting a link with electronic structure. FAPbBr3 and FAPbI3 exhibit charge‐carrier mobilities of 14 and 27 cm2 V−1 s−1 and diffusion lengths exceeding 1 μm, while mobilities across the mixed Br/I system depend on crystalline phase disorder. ",

author = "Waqaas Rehman and Milot, {Rebecca L.} and Eperon, {Giles E.} and Christian Wehrenfennig and Boland, {Jessica L.} and Snaith, {Henry J.} and Johnston, {Michael B.} and Herz, {Laura M.}",

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doi = "10.1002/adma.201502969",

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T1 - Charge-Carrier Dynamics and Mobilities in Formamidinium Lead Mixed-Halide Perovskites

AU - Rehman, Waqaas

AU - Milot, Rebecca L.

AU - Eperon, Giles E.

AU - Wehrenfennig, Christian

AU - Boland, Jessica L.

AU - Snaith, Henry J.

AU - Johnston, Michael B.

AU - Herz, Laura M.

PY - 2015/12/22

Y1 - 2015/12/22

N2 - The mixed‐halide perovskite FAPb(BryI1–y)3 is attractive for color‐tunable and tandem solar cells. Bimolecular and Auger charge‐carrier recombination rate constants strongly correlate with the Br content, y, suggesting a link with electronic structure. FAPbBr3 and FAPbI3 exhibit charge‐carrier mobilities of 14 and 27 cm2 V−1 s−1 and diffusion lengths exceeding 1 μm, while mobilities across the mixed Br/I system depend on crystalline phase disorder.

AB - The mixed‐halide perovskite FAPb(BryI1–y)3 is attractive for color‐tunable and tandem solar cells. Bimolecular and Auger charge‐carrier recombination rate constants strongly correlate with the Br content, y, suggesting a link with electronic structure. FAPbBr3 and FAPbI3 exhibit charge‐carrier mobilities of 14 and 27 cm2 V−1 s−1 and diffusion lengths exceeding 1 μm, while mobilities across the mixed Br/I system depend on crystalline phase disorder.

U2 - 10.1002/adma.201502969

DO - 10.1002/adma.201502969

M3 - Article

VL - 27

SP - 7938

EP - 7944

JO - Advanced Materials

JF - Advanced Materials

SN - 0935-9648

IS - 48

ER -

Charge-Carrier Dynamics and Mobilities in Formamidinium Lead Mixed-Halide Perovskites

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