The “glowing mystery” of the Bologna Stone was a subject of intrest in io9.com blog lately. To give more insight on the scientific details of the persistent luminescence in Bologna Stone, have a look at our paper published in 2012.
Lastusaari, M., Laamanen, T., Malkamäki, M., Eskola, K.O., Kotlov, A., Carlson, S., Welter, E., Brito, H.F., Bettinelli, M., Jungner, H., and Hölsä, J., The Bologna Stone: history’s first persistent luminescence material, Eur. J. Mineral. 24 (2012) 885-890.
Read online: http://dx.doi.org/10.1127/0935-1221/2012/0024-2224
io9 blog: http://io9.com/the-bologna-stone-was-a-glowing-mystery-for-400-years-1724589932
Check out our new publications; one about tenebrescence and persistent luminescence and the other about phosphate glasses.
Norrbo, I., Głuchowski, P., Paturi, P., Sinkkonen, J., and Lastusaari, M., Persistent luminescence of tenebrescent Na8Al6Si6O24(Cl2,S): multifunctional optical markers, Inorg. Chem. 54 (2015) 7717-7724.
Read online: http://dx.doi.org/10.1021/acs.inorgchem.5b00568
Massera, J., Gaussiran, M., Gluchowski, P., Lastusaari, M., Hupa, L., and Petit, L., Processing and characterization of phosphate glasses containing CaAl2O4:Eu2+,Nd3+ and SrAl2O4:Eu2+,Dy3+ nanoparticles, J. Eur. Ceram. Soc. 35 (2015) 3863-3871.
Read online: http://dx.doi.org/10.1016/j.jeurceramsoc.2015.06.031
Minneas poster “Effect of d Transition Metal Doping on the Up-Conversion Luminescence from NaYF4:Yb3+,Er3+” was chosen as “Best of the best” top 3 posters at The 5th International Workshop on Advanced Spectroscopy and Optical Materials in Gdansk, Poland – Good work, Minnea! The Workshop itself was very motivating and well organized and for that we thank the organizers at the University of Gdansk. We will certainly visit you again in when IWASOM is arranged in the future!
New publication about optically stimulated persistent luminescence from our collaborators.
Głuchowski, P., Stręk, W., Lastusaari, M., and Hölsä, J., Optically Stimulated Persistent Luminescence of Europium-Doped LaAlO3 Nanocrystals, Phys. Chem. Chem. Phys. 17 (2015) 17246 – 17252.
Read online: http://dx.doi.org/10.1039/c5cp00234f
B.Sc and M.Sc courses given in our laboratory on academic year of 2015-2016 have been updated with corresponding links to the courses into our teaching page. You can register to the courses via Nettiopsu.
! Note that some information in the courses web pages is still preliminary. !
Mika has a new publication about the energy storage properties of the Sr3MgSi2O8:Eu2+,Dy3+ materials, take a look.
Lastusaari, M., Bos, A.J.J., Dorenbos, P., Laamanen, T., Malkamäki, M., Rodrigues, L.C.V. and Hölsä, J., Wavelength-sensitive energy storage in Sr3MgSi2O8:Eu2+,Dy3+, J. Thermal Anal. Calorim. 121 (2015) 29-35.
Read online: http://dx.doi.org/10.1007/s10973-015-4571-7
Tero has a new publication about thermal behaviour of the NaYF4 materials, check it out.
Laihinen, T., Lastusaari, M., Pihlgren, L., Rodrigues, L.C.V., and Hölsä, J., Thermal Behavior of the NaYF4:Yb3+,R3+ Materials, J. Thermal Anal. Calorim. 121 (2015) 37-43.
Read online: http://dx.doi.org/10.1007/s10973-015-4609-x
Members of our group are attending the 6th International conference on Advanced Nanomaterials (ANM 2015) conference held in Aveiro, Portugal on 20-22 July 2015 with the topics “Luminescent Non-Doped Laponites: Anionic Nano-layered Silicates” and ” Electrochemical Reduction and Spectroelectrochemical Characterization of Thin Graphene Oxide Films in Organic Solvents”. Make sure you stop by and say hello if you’re around!
Link to conference: ANM 2015
Our group is attending The 5th International Workshop on Advanced Spectroscopy and Optical Materials conference (IWASOM) held in Gdansk, Poland on 19-24 July.
Link to the conference: IWASOM 2015