Check out a new publication about the surface modification and layer-by-layer assembly on upconverting nanoparticles.

Palo, E., Salomäki, M., and Lastusaari, M., ”Surface modification of upconverting nanoparticles by layer-by-layer assembled polyelectrolytes and metal ions”, J Colloid Interface Sci. 508 (2017) 137–144.
Read online: http://dx.doi.org/10.1016/j.jcis.2017.08.038

Check out these new publications that have been published during summer. These concern coordination chemistry of metals, luminescent clay minerals and upconversion in glass materials and in hackmanites.

Norrbo, I., Hyppänen, I. and Lastusaari, M., “Up-conversion luminescence – A new property in tenebrescent and persistent luminescent hackmanites”, J. Lumin. 191 (2017) 28-34.
Read online: http://dx.doi.org/10.1016/j.jlumin.2017.02.046

Santos, H.S., Carvalho, J.M., Viinikanoja, A., Hyppänen, I., Laihinen, T., Romani, E.C., Larrudé, D.G., Tuominen, Marjukka, Laukkanen, P., Swart, H.C., Brito, H.F., Hölsä, J, and Lastusaari, M., “Glowing synthetic chlorohectorite: The luminescent features of a trioctahedral clay mineral”, J. Lumin. 192 (2017) 567-573.
Read online: http://dx.doi.org/10.1016/j.jlumin.2017.07.017

Seppälä, P., Sillanpää, R., and Lehtonen, A., “Structural diversity of copper(II) amino alcoholate complexes”, Coord. Chem. Rev. 347 (2017) 98-114.
Read online: http://dx.doi.org/10.1016/j.ccr.2017.06.022

Nguyen, H., Tuomisto, M., Oksa, J., Salminen, T., Lastusaari, M., and Petit, L. “Upconversion in low rare-earth concentrated phosphate glasses using direct NaYF₄:Er³⁺,Yb³⁺ nanoparticles doping”, Scripta Mater. 139 (2017) 130-133.
Read online: http://dx.doi.org/10.1016/j.scriptamat.2017.06.050

Schachner, J.A., Mösch-Zanetti, N.C., Peuronen, A., and Lehtonen, A., “Dioxidomolybdenum(VI) and –tungsten(VI) complexes with tetradentate amino bisphenolates as catalysts for epoxidation”, Polyhedron 134 (2017) 73-78.
Read online: http://dx.doi.org/10.1016/j.poly.2017.06.011

Hossain, M.K., Schachner, J.A., Haukka, M., Lehtonen, A., Mösch-Zanetti, N.C., and Nordlander, E., “Dioxidomolybdenum(VI) and -tungsten(VI) complexes with tripodal amino bisphenolate ligands as epoxidation and oxo-transfer catalysts”, Polyhedron 134 (2017) 275-281.
Read online: http://dx.doi.org/10.1016/j.poly.2017.04.036

Check out our new publication about up-converting thin films and their properties by atomic layer deposition. The work is done in collaboration with Aalto university.

Tuomisto, M., Giedraityte, Z., Karppinen, M., and Lastusaari, M. “Photon up-converting (Yb,Er)₂O₃ thin films by atomic layer deposition”, Phys. Status Solidi-R 11 (2017) e201700076.
Read online: http://dx.doi.org/10.1002/pssr.201700076

Check out a new publication about molybdenum(VI) complexes and their catalytic activity.

Hossain, M.K., Haukka, M., Sillanpää, R., Hrovat, D.A., Richmond, M.G., Nordlander, E., and Lehtonen, A. “Syntheses and catalytic oxotransfer activities of oxo molybdenum(VI) complexes of a new aminoalcohol phenolate ligand”, Dalton Trans. 46 (2017) 7051-7060.
Read online: http://dx.doi.org/ 10.1039/C7DT00846E

Our latest publication enlightens an alternative route to prepare white emitting phophors by using Li-Hackmanites as a host material. Moreover, the long lasting persistent luminecence can be obtained without heavy metals.

Check out the publication in Advanced Functional Materials below and congratulations to Isabella, José and Mika for their hard work that really paid off!

Norrbo, I., Carvalho, J.M., Laukkanen, P., Mäkelä, J., Mamedov, F., Peurla, M., Helminen, H., Pihlasalo, S., Härmä, H., Sinkkonen, J., and Lastusaari, M. “Lanthanide and Heavy Metal Free Long White Persistent Luminescence from Ti Doped Li-Hackmanite: A Versatile, Low-Cost Material”, Adv. Funct. Mater. 27 (2017) 1606547.
Read online: http://dx.doi.org/10.1002/adfm.201606547

Check out a new collaboration publication about the structural properties of phosphate glasses.

Lopez-Iscoa, P., Salminen, T., Hakkarainen, T., Petit, L., Janner, D., Boetti, N.G., Lastusaari, M., Pugliese, D., Paturi, P., and Milanese, D. “Effect of Partial Crystallization on the Structural and Luminescence Properties of Er³⁺-Doped Phosphate Glasses”, Materials 10 (2017) 473.
Read online: http://dx.doi.org/10.3390/ma10050473

We’re participating in the ongoing buildup of Finnish-Estonian beamline at the MAX IV Laboratory. Check out this new publication about the wide-range beamline and its properties.

Pärnä, R., Sankari, R., Kukk, E., Nõmmiste, E., Valde, M., Lastusaari, M., Kooser, K., Kokko, K., Hirsimäki, M., Urpelainen, S., Turunen, P., Kivimäki, A., Pankratov, V., Reisberg, L., Hennies, F., Tarawneh, H, Nyholm, R., and Huttula, M., “FinEstBeaMS – A wide-range Finnish-Estonian Beamline for Materials Science at the 1.5 GeV storage ring at the MAX IV Laboratory”, Nucl. Instrum. Meth. A 859 (2017) 83-89.
Read online: http://dx.doi.org/10.1016/j.nima.2017.04.002

Check out these two new publications from Iko dealing with the upconversion luminescence properties. One concerning excitation power effects and temperature sensing and the other about red upconversion emission pathways. Congrats, Iko!

Hyppänen, I., Perälä, N., Arppe, R., Schäferling, M., and Soukka T., “Environmental and Excitation Power Effects on the Ratiometric Upconversion Luminescence Based Temperature Sensing Using Nanocrystalline NaYF₄:Yb³⁺,Er³⁺“, ChemPhysChem 18 (2017) 692-701.
Read online: http://dx.doi.org/10.1002/cphc.201601355

Hyppänen, I., Höysniemi, N., Arppe, R., Schäferling, M., and Soukka, T., “Enviromental Impact on the Excitation Path of the Red Upconversion Emission of Nanocrystalline NaYF₄:Yb³⁺,Er³⁺“, J. Phys. Chem. C 121 (2017) 6924−6929.
Read online: http://dx.doi.org/10.1021/acs.jpcc.7b01019