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Electronic Supplementary Material Pulsed laser reshaping and fragmentation of upconversion nanoparticles – from hexagonal prisms to 1D nanorods through “Medusa”-like structures Laszlo Sajti 1,§ , Denis N. Karimov 2,§ , Vasilina V. Rocheva 2 , Nataliya A. Arkharova 2 , Kirill V. Khaydukov 2 , Oleg I. Lebedev 3 , Alexey E. Voloshin 2 , Alla N. Generalova 2,4 , Boris N. Chichkov 5 , and Evgeny V. Khaydukov 2,6 ( ) 1 AIT Austrian Institute of Technology GmbH, Wiener Neustadt, 2700, Austria 2 Federal Scientific Research Centre “Crystallography and Photonics” Russian Academy of Sciences, Moscow, 119333, Russia 3 Laboratoire CRISMAT, UMR6508, CNRS-ENSIACEN, Universite Caen, Caen, 14050, France 4 Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, Moscow 117997, Russia 5 Institut für Quantenoptik, Leibniz Universität Hannover, Hannover, 30167, Germany 6 Center of Biomedical Engineering, Institute of Molecular Medicine Sechenov First Moscow State Medical University, Moscow, 119991, Russia § Laszlo Sajti and Denis N. Karimov contributed equally to this work. Supporting information to https://doi.org/10.1007/s12274-020-3163-4 Figure S1 (a) Bright-field low magnification TEM image of spherical nanodroplets generated from the surface of initial hexagonal UCNPs. (b) Magnified bright-field TEM image of nanodroplets. Figure S2 Bright-field TEM images of UNCPs viewed along two orthogonal directions, which demonstrate transformation of nanoparticle surface morphology after 1-minute of ps-laser treatment. Address correspondence to [email protected]
Transcript of Pulsed laser reshaping and fragmentation of upconversion ...Electronic Supplementary Material Pulsed...
Electronic Supplementary Material
Pulsed laser reshaping and fragmentation of upconversionnanoparticles – from hexagonal prisms to 1D nanorods through“Medusa”-like structures Laszlo Sajti1,§, Denis N. Karimov2,§, Vasilina V. Rocheva2, Nataliya A. Arkharova2, Kirill V. Khaydukov2, Oleg I. Lebedev3, Alexey E. Voloshin2, Alla N. Generalova2,4, Boris N. Chichkov5, and Evgeny V. Khaydukov2,6 ()
1 AIT Austrian Institute of Technology GmbH, Wiener Neustadt, 2700, Austria 2 Federal Scientific Research Centre “Crystallography and Photonics” Russian Academy of Sciences, Moscow, 119333, Russia 3 Laboratoire CRISMAT, UMR6508, CNRS-ENSIACEN, Universite Caen, Caen, 14050, France 4 Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, Moscow 117997, Russia 5 Institut für Quantenoptik, Leibniz Universität Hannover, Hannover, 30167, Germany 6 Center of Biomedical Engineering, Institute of Molecular Medicine Sechenov First Moscow State Medical University, Moscow, 119991, Russia§ Laszlo Sajti and Denis N. Karimov contributed equally to this work. Supporting information to https://doi.org/10.1007/s12274-020-3163-4
Figure S1 (a) Bright-field low magnification TEM image of spherical nanodroplets generated from the surface of initial hexagonal UCNPs. (b) Magnified bright-field TEM image of nanodroplets.
Figure S2 Bright-field TEM images of UNCPs viewed along two orthogonal directions, which demonstrate transformation of nanoparticle surface morphology after 1-minute of ps-laser treatment.
Address correspondence to [email protected]
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Figure S3 Low magnification bright-field TEM images of elongated drop-shaped structures (nano-“Prince Rupert's drops”) after 5-minute of ps-laser treatment. In insert: the magnified TEM image (arrows depict the “Prince Rupert’s drops”).
Figure S4 Low magnification bright-field TEM overview image of UCNPs after 10-minutes of laser treatment.
Figure S5 EDX-mapping of UCNP sample after 30-minute laser treatment before (upper) and after (lower) purification from sodium fluoride. In the first case (upper panel) Na easily identified on the surface of TEM grid.
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Figure S6 TEM image of UCNP after 5-minutes treatment, illustrating the filling of the base surface with whiskers.
Figure S7 Bright-field TEM image of the sample after 60-min laser treatment. Nanorods transformation into nanoballs is observed.
Figure S8 Schematic views of structural model derived from P63/m space group [S1].
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Figure S9 Bright-field and epi-luminescent images obtained using an optical microscope of D. magna after 24 hours of UCNPs depuration.
Figure S10 Phase diagram of NaF-YF3 system[S2]. L – melt, F – fluorite-type Na0.5+xY0.5+xF2+2x, G – Na1.5Y1.5F6.
Figure S11 Initial stage of whiskers growth under ps-laser treatment, demonstrating its core-shell structure.
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Figure S12 XRD patterns of UCNP nanostructures. Black curve – as-synthesized nanoparticles, blue curve – 10-minute of ps-laser treatment and red curve – 60-minute of ps-laser treatment. Positions of the Bragg reflections for the phases of indicated space groups are shown.
References [S1] Perera, S. S.; Amarasinghe, D. K.; Dissanayake, K. T.; Rabuffetti, F. A. Average and Local Crystal Structure of β-Er:Yb:NaYF4 Upconverting
Nanocrystals Probed by X-Ray Total Scattering. Chem. Mater. 2017, 29, 6289–6297. [S2] Fedorov, P. P.; Sobolev, B. P.; Belov, S. F. Fusibility Diagram of the System NaF-YF3, and the Cross-Section Nа0.4Y0.6F2.2-YOF. Russ. J. inorganic
materials 1979, 15, 640–643.
