Near-infrared two-photon excited photoluminescence from Yb3+-doped CsPbClxBr3−x perovskite nanocrystals embedded into amphiphilic silica microspheres

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

5 Scopus Citations
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Author(s)

  • Danila A. Tatarinov
  • Ivan D. Skurlov
  • Alexander A. Shimko
  • Denis V. Danilov
  • Yuliya A. Timkina
  • Maxim A. Rider
  • Viktor V. Zakharov
  • Sergey A. Cherevkov
  • Natalya K. Kuzmenko
  • Aleksandra V. Koroleva
  • Evgeniy V. Zhizhin
  • Nadezhda A. Maslova
  • Ekaterina Yu. Stovpiaga
  • Dmitry A. Kurdyukov
  • Valery G. Golubev
  • Xiaoyu Zhang
  • Weitao Zheng
  • Anton N. Tcypkin
  • Aleksandr P. Litvin

Detail(s)

Original languageEnglish
Pages (from-to)9011-9020
Journal / PublicationNanoscale
Volume16
Issue number18
Online published10 Apr 2024
Publication statusPublished - 14 May 2024

Abstract

Nonlinear absorption of metal-halide perovskite nanocrystals (NCs) makes them an ideal candidate for applications which require multiphoton-excited photoluminescence. By doping perovskite NCs with lanthanides, their emission can be extended into the near-infrared (NIR) spectral region. We demonstrate how the combination of Yb3+ doping and bandgap engineering of cesium lead halide perovskite NCs performed by anion exchange (from Cl to Br) leads to efficient and tunable emitters that operate under two-photon excitation in the NIR spectral region. By optimizing the anion composition, Yb3+-doped CsPbClxBr3−x NCs exhibited high values of two-photon absorption cross-section reaching 2.3 × 105 GM, and displayed dual-band emission located both in the visible (407-493 nm) and NIR (985 nm). With a view of practical applications of bio-visualisation in the NIR spectral range, these NCs were embedded into silica microspheres which were further wrapped with amphiphilic polymer shells to ensure their water-compatibility. The resulting microspheres with embedded NCs could be easily dispersed in both toluene and water, while still exhibiting a dual-band emission in visible and NIR under both one- and two-photon excitation conditions. © The Royal Society of Chemistry 2024.
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Citation Format(s)

Near-infrared two-photon excited photoluminescence from Yb3+-doped CsPbClxBr3−x perovskite nanocrystals embedded into amphiphilic silica microspheres. / Tatarinov, Danila A.; Skurlov, Ivan D.; Sokolova, Anastasiia V. et al.
In: Nanoscale, Vol. 16, No. 18, 14.05.2024, p. 9011-9020.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review