New publication about restraining fluoride loss from upconverting fluoride nanoparticles

Check out the latest publication about the surface modifications of upconversion nanoparticles using polyelectrolyte multilayers and how we aim to prevent the nanoparticle disintegration in aqueous environments.

Palo, E., Salomäki, M., and Lastusaari, M., “Restraining fluoride loss from NaYF4:Yb3+,Er3+ upconverting nanoparticles in aqueous environments using crosslinked poly(acrylic acid)/poly(allylamine hydrochloride) multilayers” J Colloid Interface Sci. 538 (2019) 320-326.
Read online:

New collaboration publication about warm-light LED materials

Check out the new collaboration publication about microwave-assisted synthesis of Ti-doped rare-earth oxysulfides for warm-light LED materials.

Carvalho, J.M., Pedroso, C.C.S., Machado, I.P., Hölsä, J., Rodrigues, L.C.V., Głuchowski, P., Lastusaari, M., and Brito, H.F. “Persistent luminescence warm-light LEDs based on Ti-doped RE2O2S materials prepared by rapid and energy-saving microwave-assisted synthesis” J. Mater. Chem. C 6 (2018) 8897-8905.
Read online:

Publication: Shielding upconverting nanoparticles with layer-by-layer method

Check out our latest publication about upconverting nanoparticles and their shielding in aqueous environments from the link below.

Palo, E., Lahtinen, S., Päkkilä, H., Salomäki, M., Soukka, T., and Lastusaari, M., “Effective Shielding of NaYF4:Yb3+,Er3+ Upconverting Nanoparticles in Aqueous Environments Using Layer-by-Layer Assembly” Langmuir 34 (2018) 7759-7766.
Read online:

Collaboration publications about tungsten complexes and hackmanites

Check out our recent collaboration publications about tungsten complexes and microwave-assisted hackmanite synthesis.

Carvalho, J.M., Norrbo, I., Ando, R.A., Brito, H.F., Fantini, M.C.A., and Lastusaari, M., “Fast, low-cost preparation of hackmanite minerals with reversible photochromic behavior using a microwave-assisted structure-conversion method” Chem. Commun. 54 (2018) 7326-7329.
Read online:

Hossain, K., Haukka, M., Hänninen, M.M., Lisensky, G.C., Paturi, P., Ebbe, N., and Lehtonen, A.. “An experimental and theoretical study of a heptacoordinated tungsten(VI) complex of a noninnocent phenylenediamine bis(phenolate) ligand” Inorg. Chem. Commun. 93 (2018) 149-152.
Read online:

A set of publications incl. complexes, glasses and UV index determination

Below  you can find a collection of our newest publications. They include detailed vibrational studies in complexes, collaboration concerning glass-ceramics and solar UV index determination using hackmanites.

Norrbo, I., Curutchet, A., Kuusisto, A., Mäkelä, J., Laukkanen, P., Paturi, P., Laihinen, T., Sinkkonen, J., Wetterskog, E., Mamedov, F., Le Bahers, T., and Lastusaari, M., “Solar UV index and UV dose determination with photochromic hackmanites: from the assessment of the fundamental properties to the device” Mater. Horizons 5 (2018) 569-576.
Read online:

Ojha, N., Laihinen, T., Salminen, T., Lastusaari, M., and Petit, L., “Influence of the phosphate glass melt on the corrosion of functional particles occurring during the preparation of glass-ceramics” Ceram. Int. 44 (2018), 11807-22811.
Read online:

Peuronen, A., Sillanpää, R., and Lehtonen, A., “The Syntheses and Vibrational Spectra of 16O‐ and 18O‐Enriched cis‐MO2 (M=Mo, W) Complexes”, ChemistrySelect 3 (2018) 3814-3818.
Read online:

Emilia receives FinTAC travel grant

Emilia received a travel grant from Finnish Thermal Analysis and Calorimetry Association FinTAC ry (www) for the 7th EuCheMS Chemistry Congress (www) held in Liverpool, United Kingdom on 26–30th of August. The grant was awarded to her at the FinTAC ry meeting in Tampere university of Technology by the chairman Prof. Vesa-Pekka Lehto (right) and M.Sc. (Tech.) Markus M. Hackspik. Congratulations, Emilia!

In addition, check out new collaboration publication about borosilicate glasses with persistent luminescence.

Del Cerro, P.R., Salminen, T., Lastusaari, M., and Petit, L., “Persistent luminescent borosilicate glasses using direct particles doping method”, Scripta Mater. 151 (2018) 38-41.
Read online:

Publications: Upconverting thin films and microparticles in glass melt

Check out our new publication from the collaboration with Aalto university about ALD/MLD fabricated thin films with upconversion luminescence.

Giedraityte, Z., Tuomisto, M., Lastusaari, M., and Karppinen, M., “Three-and two-photon NIR-to-vis (Yb,Er) upconversion from ALD/MLD fabricated molecular hybrid thin films”, ACS Appl. Mater. Interfaces 10 (2018) 8845–8852.
Read online:

Another new publication concerns the decomposition of luminescent microparticles in glass melt and is a result from the collaboration with Tampere university of technology.

Ojha, N., Nguyen, H., Laihinen, T., Salminen, T., Lastusaari, M., and Petit, L., “Decomposition of persistent luminescent microparticles in corrosive phosphate glass melt”, Corros. Sci. 135 (2018) 207-214.
Read online:

New collaboration publication about silica glasses

New collaboration publication about the spectroscopic properties of Yb doped silica glasses is published. Check it out below.

Glorieux, B., Salminen, T., Massera, J., Lastusaari, M., and Petit, L., “Better understanding of the role of SiO2, P2O5 and Al2O3 on the spectroscopic properties of Yb3+ doped silica sol-gel glasses”, J. Non-Cryst. Solids 482 (2018) 46-51.
Read online:

New publications

For the end of the year, a set of publications and patents about different luminescent materials and their properties.

Santos, H.S., Norrbo, I., Laihinen, T., Sinkkonen, J., Mäkilä, E., Carvalho, J.M., Damlin, P., Brito, H.F., Hölsä, J., and Lastusaari, M., “Synthesis and Features of Luminescent Bromo- and Iodohectorite Nanoclay Materials”, Appl. Sci. 7 (2017) 1243.
Read online:

Lastusaari, M. and Norrbo, I., “Luminescent Material”, WO 2017/194825 A1.

Lastusaari, M. and Norrbo, I., “Synthetic Material for Detecting Ultraviolet Radiation and/or X-radiation”, WO 2017/194834 A1.

Mäkelä, J., Tuominen, M., Dahl, J., Granroth, S., Yasir, M., Lehtiö, J-P., Uusitalo, R-R., Kuzmin, M., Punkkinen, M., Laukkanen, P., Kokko, K., Félix, R., Lastusaari, M., Polojärvi, V., Lyytikäinen, J., Tukiainen, A., and Guina, M., “Decreasing Defect-State Density of Al2O3/GaxIn1−xAs Device Interfaces with InOx Structures”, Adv. Mater. Interfaces 4 (2017) 1700722.
Read online:

New publication about oxovanadium complexes

Check out the latest short communication about the oxovanadium complexes and their use in oxidation catalysts.

Salonen, P., Peuronen, A., and Lehtonen, A., “Oxidovanadium(V) amine bisphenolates as epoxidation, sulfoxidation and catechol oxidation catalysts”, Inorg. Chem. Commun. 86 (2017) 165-167.
Read online: