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Unraveling the exciton binding energy and the dielectric constant in single-crystal methylammonium lead triiodide perovskite

Abstract:

We have accurately determined the exciton binding energy and reduced mass of single crystals of methylammonium lead triiodide using magneto-reflectivity at very high magnetic fields. The single crystal has excellent optical properties with a narrow line width of ∼3 meV for the excitonic transitions and a 2s transition that is clearly visible even at zero magnetic field. The exciton binding energy of 16 ± 2 meV in the low-temperature orthorhombic phase is almost identical to the value found in...

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Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1021/acs.jpclett.7b00524

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Role:
Author
ORCID:
0000-0003-4078-4965
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China Scholarship Council More from this funder
Publisher:
American Chemical Society Publisher's website
Journal:
Journal of Physical Chemistry Letters Journal website
Volume:
8
Issue:
8
Pages:
1851-1855
Publication date:
2017-04-10
Acceptance date:
2017-04-10
DOI:
ISSN:
1948-7185
Pmid:
28393517
Source identifiers:
690847
Language:
English
Pubs id:
pubs:690847
UUID:
uuid:43718e28-80a9-43dd-a7f2-a0b6f0678545
Local pid:
pubs:690847
Deposit date:
2017-12-08

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