Research output: Contribution to journal › Article › peer-review
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.; Shimko, Alexander A.; Danilov, Denis V.; Timkina, Yuliya A.; Rider, Maxim A.; Zakharov, Viktor V.; Cherevkov, Sergey A.; Kuzmenko, Natalya K.; Koroleva, Aleksandra V.; Zhizhin, Evgeniy V.; Maslova, Nadezhda A.; Stovpiaga, Ekaterina Yu.; Kurdyukov, Dmitry A.; Golubev, Valery G.; Zhang, Xiaoyu; Zheng, Weitao; Tcypkin, Anton N.; Litvin, Aleksandr P.; Rogach, Andrey L.
In: Nanoscale, Vol. 16, No. 18, 10.04.2024, p. 9011-9020.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Near-infrared two-photon excited photoluminescence from Yb3+-doped CsPbClxBr3−x perovskite nanocrystals embedded into amphiphilic silica microspheres
AU - Tatarinov, Danila A.
AU - Skurlov, Ivan D.
AU - Sokolova, Anastasiia V.
AU - Shimko, Alexander A.
AU - Danilov, Denis V.
AU - Timkina, Yuliya A.
AU - Rider, Maxim A.
AU - Zakharov, Viktor V.
AU - Cherevkov, Sergey A.
AU - Kuzmenko, Natalya K.
AU - Koroleva, Aleksandra V.
AU - Zhizhin, Evgeniy V.
AU - Maslova, Nadezhda A.
AU - Stovpiaga, Ekaterina Yu.
AU - Kurdyukov, Dmitry A.
AU - Golubev, Valery G.
AU - Zhang, Xiaoyu
AU - Zheng, Weitao
AU - Tcypkin, Anton N.
AU - Litvin, Aleksandr P.
AU - Rogach, Andrey L.
PY - 2024/4/10
Y1 - 2024/4/10
N2 - 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.
AB - 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.
UR - https://www.mendeley.com/catalogue/7d527faa-c8ab-35c8-bafe-98a545d1baf3/
U2 - 10.1039/d4nr00892h
DO - 10.1039/d4nr00892h
M3 - Article
VL - 16
SP - 9011
EP - 9020
JO - Nanoscale
JF - Nanoscale
SN - 2040-3364
IS - 18
ER -
ID: 119488437