Investigating Electron-Phonon Coupling in Formamidinium Lead Iodide Perovskite Using Ultrafast Laser Spectroscopy

V. C.A. Taylor, D. Tiwari, M. Duchi, P. M. Donaldson, I. P. Clark, D. J. Fermin, T. A.A. Oliver

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

118 Downloads (Pure)

Abstract

The high charge carrier mobilities of hybrid inorganic-organic lead halide perovskites has previously been linked to ferroelectric domain formation due to alignment of organic cations within films. [1], [2] Our two-dimensional infrared ultrafast spectroscopy studies reveal that organic cations re-orient within several picoseconds, and therefore ferroelectric domain formation is very unlikely and unable to account for the observed long carrier lifetimes.[3] Complimentary time-resolved infrared measurements examined the electron-phonon coupling in the conduction band. Analysis of the spectral line shapes indicates that carriers form polarons within the instrument response.

Original languageEnglish
Title of host publication18th International Conference on Nanotechnology, NANO 2018
PublisherIEEE Computer Society
Number of pages3
Volume2018-July
ISBN (Electronic)9781538653364
ISBN (Print)9781538653371
DOIs
Publication statusPublished - 24 Jan 2019
Event18th International Conference on Nanotechnology, NANO 2018 - Cork, Ireland
Duration: 23 Jul 201826 Jul 2018

Publication series

NameIEEE International Conference on Nanotechnology (IEEE-NANO)
PublisherIEEE
ISSN (Print)1944-9399

Conference

Conference18th International Conference on Nanotechnology, NANO 2018
CountryIreland
CityCork
Period23/07/1826/07/18

Fingerprint Dive into the research topics of 'Investigating Electron-Phonon Coupling in Formamidinium Lead Iodide Perovskite Using Ultrafast Laser Spectroscopy'. Together they form a unique fingerprint.

  • Cite this

    Taylor, V. C. A., Tiwari, D., Duchi, M., Donaldson, P. M., Clark, I. P., Fermin, D. J., & Oliver, T. A. A. (2019). Investigating Electron-Phonon Coupling in Formamidinium Lead Iodide Perovskite Using Ultrafast Laser Spectroscopy. In 18th International Conference on Nanotechnology, NANO 2018 (Vol. 2018-July). [8626311] (IEEE International Conference on Nanotechnology (IEEE-NANO)). IEEE Computer Society. https://doi.org/10.1109/NANO.2018.8626311