Unveiling the effect of potassium treatment on the mesoporous TiO2/ perovskite interface in perovskite solar cells
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F21%3A00549982" target="_blank" >RIV/68378271:_____/21:00549982 - isvavai.cz</a>
Alternative codes found
RIV/00216208:11320/21:10436370 RIV/68407700:21230/21:00353215 RIV/68407700:21720/21:00353215
Result on the web
<a href="https://doi.org/10.1021/acsaem.1c02229" target="_blank" >https://doi.org/10.1021/acsaem.1c02229</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/acsaem.1c02229" target="_blank" >10.1021/acsaem.1c02229</a>
Alternative languages
Result language
angličtina
Original language name
Unveiling the effect of potassium treatment on the mesoporous TiO2/ perovskite interface in perovskite solar cells
Original language description
A method for improving mesoporous TiO2/perovskite interfacial characteristics in perovskite solar cells (PSCs) is demonstrated by modifying mesoporous TiO2 with potassium (K) treatment. It is found that the modification of mesoporous TiO2 with K treatment enhances the perovskite crystallization process, producing a perovskite film with higher crystallinity and larger grains. K treatment passivates trap sites in mesoporous TiO2 and reduces sub-band-gap deep defect states at the interface of the perovskite, thereby suppressing the nonradiative recombination and improving Voc of PSCs. Stronger photoluminescence quenching and shorter carrier lifetime are also observed for the perovskite on K-treated mesoporous TiO2, indicating more efficient charge collection across the interface. As a result of these advancements, PSC based on K-treated mesoporous TiO2 shows a high power conversion efficiency of 20.60% compared to PSC without K treatment and improves the environmental stability in air.
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
<a href="/en/project/EF15_003%2F0000464" target="_blank" >EF15_003/0000464: Centre of Advanced Photovoltaics</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
ACS Applied Energy Materials
ISSN
2574-0962
e-ISSN
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Volume of the periodical
4
Issue of the periodical within the volume
10
Country of publishing house
US - UNITED STATES
Number of pages
8
Pages from-to
11488-11495
UT code for WoS article
000711236300108
EID of the result in the Scopus database
2-s2.0-85118175023