A surface modification strategy for synthesizing highly water-stable CsPbBr3 perovskite quantum dots
https://doi.org/10.17586/2220-8054-2025-16-4-521-527
Abstract
Hydrophobic CsPbBr3 perovskite quantum dots (PQDs) were synthesized via a ligand-assisted re-precipitation method with various antisolvents. A study was conducted to assess antisolvents influence on the properties of the synthesized PQDs. To enhance the stability of PQDs in polar media and possess surface functional groups for further conjugation with biomolecules, the surface of the nanoparticles was modified with 2 bromoisovaleric acid (Br-iVA), cetyl alcohol (CtA), and 3-aminopropyltriethoxysilane (APTES). PQDs modified with Br-iVA exhibited the highest stability in polar solvents and water, maintaining for up to 90 days.
Keywords
perovskite quantum dots,
ligand-assisted re-precipitation,
halide-exchange method,
modification PQDs
Supporting agencies: This work was supported by the Russian Science Foundation under grant No. 24-23- 00432
About the Authors
S. A. Novikova
Dubna State University
Russian Federation
Russian Federation
Sagila A. Novikova
Dubna, Moscow oblast, 141980, Russia
E. D. Gribova
Dubna State University
Russian Federation
Russian Federation
Elena D. Gribova
Dubna, Moscow oblast, 141980, Russia
K. S. Kasimtseva
Dubna State University
Russian Federation
Russian Federation
Ksenia S. Kasimtseva
Dubna, Moscow oblast, 141980, Russia
E. A. Sidorov
Dubna State University
Russian Federation
Russian Federation
Evgeniy A. Sidorov
Dubna, Moscow oblast, 141980, Russia
I. N. Fadeikina
Joint Institute for Nuclear Research
Russian Federation
Russian Federation
Dubna, Moscow oblast, 141980 Russia
A. N. Nechaev
Joint Institute for Nuclear Research
Russian Federation
Russian Federation
Dubna, Moscow oblast, 141980 Russia
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Review
For citations:
Novikova S.A., Gribova E.D., Kasimtseva K.S., Sidorov E.A., Fadeikina I.N., Nechaev A.N. A surface modification strategy for synthesizing highly water-stable CsPbBr3 perovskite quantum dots. Nanosystems: Physics, Chemistry, Mathematics. 2025;16(4):521-527. https://doi.org/10.17586/2220-8054-2025-16-4-521-527
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