Infrared-pump electronic-probe of methylammonium lead iodide reveals electronically decoupled organic and inorganic sublattices
Peijun Guo,
Arun Mannodi-Kanakkithodi,
Jue Gong,
Yi Xia,
Constantinos C. Stoumpos,
Duyen H. Cao,
Benjamin T. Diroll,
John B. Ketterson,
Gary P. Wiederrecht,
Tao Xu,
Maria K. Y. Chan,
Mercouri G. Kanatzidis and
Richard D. Schaller ()
Additional contact information
Peijun Guo: Argonne National Laboratory
Arun Mannodi-Kanakkithodi: Argonne National Laboratory
Jue Gong: Northern Illinois University
Yi Xia: Argonne National Laboratory
Constantinos C. Stoumpos: Northwestern University
Duyen H. Cao: Argonne National Laboratory
Benjamin T. Diroll: Argonne National Laboratory
John B. Ketterson: Northwestern University
Gary P. Wiederrecht: Argonne National Laboratory
Tao Xu: Northern Illinois University
Maria K. Y. Chan: Argonne National Laboratory
Mercouri G. Kanatzidis: Northwestern University
Richard D. Schaller: Argonne National Laboratory
Nature Communications, 2019, vol. 10, issue 1, 1-8
Abstract:
Abstract Organic-inorganic hybrid perovskites such as methylammonium lead iodide (CH3NH3PbI3) are game-changing semiconductors for solar cells and light-emitting devices owing to their defect tolerance and exceptionally long carrier lifetimes and diffusion lengths. Determining whether the dynamically disordered organic cations with large dipole moment benefit the optoelectronic properties of CH3NH3PbI3 has been an outstanding challenge. Herein, via transient absorption measurements employing an infrared pump pulse tuned to a methylammonium vibration, we observe slow, nanosecond-long thermal dissipation from the selectively excited organic mode to the inorganic sublattice. The resulting transient electronic signatures, during the period of thermal-nonequilibrium when the induced thermal motions are mostly concentrated on the organic sublattice, reveal that the induced atomic motions of the organic cations do not alter the absorption or the photoluminescence response of CH3NH3PbI3, beyond thermal effects. Our results suggest that the attractive optoelectronic properties of CH3NH3PbI3 mainly derive from the inorganic lead-halide framework.
Date: 2019
References: Add references at CitEc
Citations:
Downloads: (external link)
https://www.nature.com/articles/s41467-019-08363-2 Abstract (text/html)
Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.
Export reference: BibTeX
RIS (EndNote, ProCite, RefMan)
HTML/Text
Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-08363-2
Ordering information: This journal article can be ordered from
https://www.nature.com/ncomms/
DOI: 10.1038/s41467-019-08363-2
Access Statistics for this article
Nature Communications is currently edited by Nathalie Le Bot, Enda Bergin and Fiona Gillespie
More articles in Nature Communications from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().