Photoluminescence quantum yield enhancement of FAPbBr3 thin films via Ce doping
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F25%3A00638210" target="_blank" >RIV/68378271:_____/25:00638210 - isvavai.cz</a>
Alternative codes found
RIV/00216208:11320/25:10502261
Result on the web
<a href="https://hdl.handle.net/11104/0369772" target="_blank" >https://hdl.handle.net/11104/0369772</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/acs.jpcc.5c03090" target="_blank" >10.1021/acs.jpcc.5c03090</a>
Alternative languages
Result language
angličtina
Original language name
Photoluminescence quantum yield enhancement of FAPbBr3 thin films via Ce doping
Original language description
The photoluminescence (PL) and photoluminescence quantum yield (PLQY) of perovskite-based devices are crucial parameters that determine their photovoltaic performance. Doping, especially by ions of rare-earth metals, is an effective strategy for the enhancement of the optoelectronic properties of perovskites. Here, we explore the effect of cerium on the optical performance of CH(NH2)2PbBr3 (FAPbBr3) thin films prepared by a simple one-step spin coating. Doped films with optimal Ce concentration showed nearly 20-fold enhancement of PLQY. Absorption and emission spectroscopy revealed that such a PL increment is accompanied by just a slight blue shift, overall maintaining the emission color and its purity. Additionally, we observed that Ce doping significantly affected the perovskite crystallographic texture. We found that maintaining the initial grain orientation is crucial for achieving a high PL efficiency. By combining structural and optical characterization methods, we established the Ce concentration limits for an increased optical performance.
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
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2025
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 C
ISSN
1932-7447
e-ISSN
1932-7455
Volume of the periodical
129
Issue of the periodical within the volume
31
Country of publishing house
US - UNITED STATES
Number of pages
6
Pages from-to
14190-14195
UT code for WoS article
001537147700001
EID of the result in the Scopus database
2-s2.0-105013579323