Rehman, Waqaas, Milot, Rebecca L., Eperon, Giles E., Wehrenfennig, Christian, Boland, Jessica L., Snaith, Henry J., Johnston, Michael B. and Herz, Laura M. (2015) Charge-carrier dynamics and mobilities in formamidinium lead mixed-halide perovskites. Advanced Materials, 27 (48). pp. 7938-7944. doi:10.1002/adma.201502969 ISSN 0935-9648.

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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.

Item Type:	Journal Article
Subjects:	Q Science > QC Physics
Divisions:	Faculty of Science, Engineering and Medicine > Science > Physics
Journal or Publication Title:	Advanced Materials
Publisher:	Wiley - V C H Verlag GmbH & Co. KGaA
ISSN:	0935-9648
Official Date:	16 December 2015
Dates:	Date Event 16 December 2015 Published 24 September 2015 Available 29 July 2015 Accepted 19 June 2015 Submitted
Volume:	27
Number:	48
Page Range:	pp. 7938-7944
DOI:	10.1002/adma.201502969
Status:	Peer Reviewed
Publication Status:	Published
Access rights to Published version:	Open Access (Creative Commons)
Date of first compliant deposit:	30 July 2019
Date of first compliant Open Access:	30 July 2019
RIOXX Funder/Project Grant:	Project/Grant ID RIOXX Funder Name Funder ID UNSPECIFIED [EPSRC] Engineering and Physical Sciences Research Council http://dx.doi.org/10.13039/501100000266

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