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Photophysics of Titania Nanoparticle/Quantum Dot Hybrid Structures

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Abstract

The efficiency of the electron transfer in hybrid structures based on quantum dots of different architectures was studied. Electron transfer efficiency was estimated by two independent methods from the side of the electron donor (quantum dot) and acceptor (Titania nanoparticles). Structures based on core CdSe QDs with small diameter demonstrate the highest efficiency of electron transfer and ROS generation. The presence of the dark fraction of QDs in the ensemble reduces the functionality of hybrid structures and limits their practical applicability.

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ACKNOWLEDGMENTS

E. Kolesova thanks the Ministry of Education and Science of the Russian Federation for support via the Scholarships of the President of the Russian Federation for Young Scientists and Graduate Students, SP-991.2019.4.

Funding

This work was supported by the Ministry of Science and Higher Education of Russian Federation, goszadanie no. 2019–1080.

This work was financially supported by the Government of Russian Federation, Grant 08-08.

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Authors and Affiliations

  1. ITMO University, 197101, St. Petersburg, Russia

    E. P. Kolesova, F. M. Safin, V. G. Maslov, A. Dubavik & A. O. Orlova

  2. Trinity College, Dublin 2, Ireland

    Y. K. Gun’ko

Authors
  1. E. P. Kolesova
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  2. F. M. Safin
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  3. V. G. Maslov
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  4. A. Dubavik
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  5. Y. K. Gun’ko
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  6. A. O. Orlova
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Corresponding author

Correspondence to E. P. Kolesova.

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The authors declare that they have no conflict of interest.

Additional information

The 2nd International School-Conference for young researchers “Smart Nanosystems for Life,” St. Petersburg, Russia, December 10–13, 2019.

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Kolesova, E.P., Safin, F.M., Maslov, V.G. et al. Photophysics of Titania Nanoparticle/Quantum Dot Hybrid Structures. Opt. Spectrosc. 128, 1256–1261 (2020). https://doi.org/10.1134/S0030400X20080160

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  • DOI: https://doi.org/10.1134/S0030400X20080160

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