- PII
- S0023119325010011-1
- DOI
- 10.31857/S0023119325010011
- Publication type
- Article
- Status
- Published
- Authors
- Volume/ Edition
- Volume 59 / Issue number 1
- Pages
- 3-11
- Abstract
- The dynamics of differential absorption spectra of Mn2+ : Zn0.48Cd0.52S/ZnS quantum dots (QDs) after excitation with a femtosecond (fs) pulse of 360 nm in aprotonic nonpolar cyclohexane and polar propylene carbonate solvents in comparison with the protonic polar solvent water has been studied by femtosecond laser spectroscopy method. The absorption and luminescence spectra of QDs in water revealed bands related to trapped states. The fading band related to the edge exciton of QD attenuates significantly faster in water than in aprotonic solvents, which suggests rapid electron transfer from the 1Se level to trap states in competition with electron transfer to manganese. Apparently, the competition of these processes is the reason for the decrease in the quantum yield of manganese luminescence in Mn2+ : Zn0.48Cd0.52S/ZnS when passing from aprotonic solvents to water.
- Keywords
- фемтосекундная лазерная спектроскопия квантовые точки многоэкситонная релаксация “горячие” экситоны стохастическая кинетика
- Date of publication
- 06.10.2025
- Year of publication
- 2025
- Number of purchasers
- 0
- Views
- 27
References
- 1. Kamat P.V. // J. Phys. Chem. C. Am. Chem. Soc. 2008. V. 112. № 48. P. 18737–18753.
- 2. Sun P. et al. // Chem. Eng. J. 2023. V. 458. P. 141399.
- 3. Rtimi S., Kiwi J., Nadtochenko V. // Curr. Opin. Chem. Eng. 2021. V. 34. P. 100731.
- 4. Martynenko I.V. et al. // J. Mater. Chem. B. Royal Soc. Chem. 2017. V. 5. № 33. P. 6701–6727.
- 5. Cherepanov D. et al. // Nanomaterials. MDPI. 2021. V. 11. № 11. P. 3007.
- 6. Nadtochenko V. et al. // Chem. Phys. Lett. North-Holland. 2020. V. 743. P. 137160.
- 7. Pandey A., Sarma D. // Z. Anorg. Allg. Chem. 2016. V. 642. № 23. P. 1331–1339.
- 8. Wang C.W., Orrison C., Son D.H. // Bull. Korean Chem. Soc. 2022. V. 43. № 4. P. 492–500.
- 9. Yu W.W. et al. // Biochem. Biophys. Res. Commun. 2006. V. 348. № 3. P. 781–786.
- 10. Spirin M.G., Brichkin S.B., Razumov V.F. // High Energy Chem. 2015. V. 49. № 6. P. 426–432.
- 11. Cui S.C. et al. // J. Phys. Chem. C. Am. Chem. Soc. 2010. V. 114. № 2. P. 1217–1225.
- 12. Gostev F.E. et al. // High Energy Chem. 2018. V. 52. № 6. P. 508–509.
- 13. Gostev F.E. et al. // High Energy Chem. 2018. V. 52. № 6. P. 492–497.
- 14. du Fossé I. et al. // J. Phys. Chem. C. Am. Chem. Soc. 2021. V. 125. № 43. P. 23968–23975.
- 15. Moon H. et al. // Adv. Mater. 2019. V. 31. № 34. P. 1804294.
- 16. Nadtochenko V. et al. // J. Photochem. Photobiol. A Chem. 2022. V. 429. P. 113946.
- 17. Archer D.G., Wang P. // J. Phys. Chem. Ref. Data. 1990. V. 19. № 2. P. 371–411.
- 18. Simeral L., Amey R.L. // J. Phys. Chem. Am. Chem. Soc. 1970. V. 74. № 7. P. 1443–1446.
- 19. Barthel J., Feuerlein F. // J. Sol. Chem. 1984. V. 13. № 6. P. 393–417.
- 20. Hassan G.E. et al. // Opt. Mater. (Amst). North-Holland. 1996. V. 5. № 4. P. 327–332.
- 21. Kabachii Y.A. et al. // Mendeleev Commun. 2021. V. 31. № 3. P. 315–318.
- 22. Pradeep K.R., Viswanatha R. // APL Mater. 2020. V. 8. № 2. P. 20901.
- 23. Pradhan N., Peng X. // J. Am. Chem. Soc. 2007. V. 129. № 11. P. 3339–3347.
- 24. Klimov V.I. et al. // Phys. Rev. B. Am. Phys. Soc. 1999. V. 60. № 19. P. 13740.
- 25. Pechstedt K. et al. // J. Phys. Chem. C. Am. Chem. Soc. 2010. V. 114. № 28. P. 12069–12077.
- 26. Sethi R. et al. // Chem. Phys. Lett. North-Holland. 2010. V. 495. № 1–3. P. 63–68.
- 27. de Jesus J.P.A., Jimenez M.Z., La Porta F. de A. // Comput. Mater. Sci. 2021. V. 188. P. 110147.
- 28. Osman M.A., Abd-Elrahim A.G., Othman A.A. // J. Alloys Comp. 2017. V. 722. P. 344–357.
- 29. Wang M. et al. // Chem. Cent. J. Bio. Med Central. 2011. V. 5. № 1. P. 1–10.
- 30. Wang M. et al. // RSC Adv. Royal Soc. Chem. 2015. V. 5. № 106. P. 87496–87503.
