Efficient Ligand Passivation Enables Ultrastable CsPbX3 Perovskite Nanocrystals in Fully Alcohol Environments
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F23%3A39920437" target="_blank" >RIV/00216275:25310/23:39920437 - isvavai.cz</a>
Alternative codes found
RIV/00216305:26620/23:PU148302
Result on the web
<a href="https://onlinelibrary.wiley.com/doi/10.1002/adom.202203096" target="_blank" >https://onlinelibrary.wiley.com/doi/10.1002/adom.202203096</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/adom.202203096" target="_blank" >10.1002/adom.202203096</a>
Alternative languages
Result language
angličtina
Original language name
Efficient Ligand Passivation Enables Ultrastable CsPbX3 Perovskite Nanocrystals in Fully Alcohol Environments
Original language description
Halide perovskite nanocrystals (PNCs) have demonstrated their wide potential to fabricate efficient optoelectronic devices and to prepare promising photocatalysts for solar-driven photo(electro)chemical reactions. However, their use in most of the practical applications is limited due to the instability of PNCs in polar environments. Here, the preparation of non-encapsulated CsPbX3 nanocrystals dispersed in fully alcohol environments, with outstanding stability through surface defect passivation strategy is reported. By using didodecyldimethylammonium bromide (DDAB) during material post-treatment, highly luminescent CsPbBr3 PNCs with remarkable stability in methanol/butanol medium up to 7 months with near-unity photoluminescence quantum yield are achieved. This approach is extrapolated to stabilize iodine-based CsPbBr3-xIx and CsPbI3 PNCs, showing an improvement of their photoluminescence features and stability in these high polar alcohols up to 6 h. DDAB mediates the defect suppression through ligand exchange and avoids the full permeation of alcohol to be in contact with the PNCs. In this context, DDAB induces ionization of alcohol molecules to strengthen the surface passivation. The findings open the door to the development of long-term stable CsPbX3 PNCs with high optical performance to be used in polar environments.
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
10402 - Inorganic and nuclear chemistry
Result continuities
Project
—
Continuities
—
Others
Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Advanced optical materials
ISSN
2195-1071
e-ISSN
2195-1071
Volume of the periodical
11
Issue of the periodical within the volume
12
Country of publishing house
DE - GERMANY
Number of pages
11
Pages from-to
2203096
UT code for WoS article
000956676500001
EID of the result in the Scopus database
2-s2.0-85151447194