Photocurrent spectroscopy of perovskite layers and solar cells: a sensitive probe of material degradation
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F17%3A00486914" target="_blank" >RIV/68378271:_____/17:00486914 - isvavai.cz</a>
Alternative codes found
RIV/68407700:21230/17:00308765
Result on the web
<a href="http://dx.doi.org/10.1021/acs.jpclett.6b02854" target="_blank" >http://dx.doi.org/10.1021/acs.jpclett.6b02854</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/acs.jpclett.6b02854" target="_blank" >10.1021/acs.jpclett.6b02854</a>
Alternative languages
Result language
angličtina
Original language name
Photocurrent spectroscopy of perovskite layers and solar cells: a sensitive probe of material degradation
Original language description
Optical absorptance spectroscopy of polycrystalline CH3NH3PbI3 films usually indicates the presence of a PbI2 phase, either as a preparation residue or due to film degradation, but gives no insight on how this may affect electrical properties. Here, we apply photocurrent spectroscopy to both perovskite solar cells and coplanar-contacted layers at various stages of degradation. In both cases, we find that the presence of a PbI2 phase restricts charge-carrier transport, suggesting that PbI2 encapsulates CH3NH3PbI3 grains. We also find that PbI2 injects holes into the CH3NH3PbI3 grains, increasing the apparent photosensitivity of PbI2.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10302 - Condensed matter physics (including formerly solid state physics, supercond.)
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Physical Chemistry Letters
ISSN
1948-7185
e-ISSN
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Volume of the periodical
8
Issue of the periodical within the volume
4
Country of publishing house
US - UNITED STATES
Number of pages
6
Pages from-to
838-843
UT code for WoS article
000394484100021
EID of the result in the Scopus database
2-s2.0-85013082923