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		题名	作者	年代	出处	被引量
	1	Electronic structure of the SrAl_2O_4:Eu^(2+) persistent luminescence material显示文摘The electronic structure of the strontium aluminate (SrAl2O4:Eu2+) materials was studied with a combined experimental and theoretical approach. The UV-VUV synchrotron radiation was applied in the experimental study while the electronic structure of the non-optimized and optimized crystal structure were investigated theoretically by using the density functional theory. The structure of the va- lence and conduction bands as well as the band gap energy of the material together with the position of the Eu2+ 4f7 8S7/2 ground state were calculated. The calculated band gap energy (6.4 eV) agreed well with the experimental value of 6.6 eV. The valence band consisted mainly of oxygen states whereas the bottom of the conduction band of strontium states. In agreement with the experimental results, the calculated 4f7 8S7/2 ground state of Eu2+ lies in the energy gap of the host. The position of the 4f7 ground state depended on the Coulomb repulsion strength. The position of the 4f7 ground state with respect to the valence and conduction bands was discussed using theoretical and experimental evidence available.	Jorma Hls Taneli Laamanen Mika Lastusaari Janne Niittykoski Pavel Novák	2009	Journal of Rare Earths2009，27，4：	9
	2	Synchrotron radiation investigations of the Sr_2MgSi_2O_7:Eu^(2+),R^(3+) persistent luminescence materials显示文摘The electronic and defect energy level structure of polycrystalline Sr2MgSi2O7:Eu2+,R3+ persistent luminescence materials were studied with thermoluminescence and different synchrotron radiation spectroscopies (UV-VUV emission and excitation, X-ray absorption near-edge spectroscopy (XANES) and extended X-ray absorption fine structure (EXAFS)). Special attention was paid on the effect of the R3+ co-dopants on the persistent luminescence properties of the materials. Theoretical calculations using the density functional theory (DFT) were carried out simultaneously with the experimental work. The experimental band gap energy (Eg) value of ca. 7.1 eV agreed very well with the DFT value of 6.7 eV. The variation of the Eg value was attempted to relate with the trap structure as well as with the different properties of the R3+ co-dopants. The trap level energy distribution depended strongly on the R3+ co-dopant except for the shallowest trap energy above the room temperature remaining practically the same, however. The different processes in the mechanism of persistent luminescence from Sr2MgSi2O7:Eu2+,R3+ were assembled and their contributions discussed.	Tuomas Aitasalo Jukka Hassinen Jorma Hls Taneli Laamanen Mika Lastusaari Marja Malkamki Janne Niittykoski Pavel Novák	2009	Journal of Rare Earths2009，27，4：	5
	3	Thermoluminescence and Kinetics of Persistent Luminescence of Vacuum-Sintered Tb3+-Doped and Tb3+,Ca2+-Codoped Lu2O3 Materials显示文摘	Trojan-Piegza J Niittykoski J Holsa J	2008	Chem Mater2008，20，6：	1
	4	Effict of Boron Substitution on the Preparation and Luminescence of Eu^2+ Doped Strontium Aluminates显示文摘	Niittykoski J Aitasalo T Holsa	2004	Journal of Alloys and Compouds2004，374，：	1
	5	Effect of Mg 2+ and Ti IV doping on the luminescence of Y 2 O 2 S:Eu 3+显示文摘	Jorma H?ls? Taneli Laamanen Mika Lastusaari Marja Malkam?ki Janne Niittykoski Eugeniusz Zych	2009	Optical Materials2009，，12：	1
	6	Matu- ration of autophagosomes and endosomes : a key role for Rab7显示文摘	HYTTINEN J M NIITTYKOSKI M SALMINEN A	2012	Biochim Biophys Acta2012，1833，3：	1
	7	Thermoluminescence and kinetics of persistent luminescence of vacuum-sintered Tb^3+-doped and Tb^3+ , Ca^2+-eodoped LU2O3 materials 显示文摘	Trojan - Piegza J Niittykoski J Holsa J	2008	Chemistry of Materials2008，20，6：	1
	8	Effect of boron substitution on the preparation and luminescence of Eu2+ doped strontium aluminates显示文摘	NIITTYKOSKI J AITASALO T HOLSA J	2004	J Alloys Compd2004，374，：	1
	9	Effect of boron substitution on the preparation and luminescence of Eu2 + doped strontium aluminates显示文摘	Niittykoski J Aitasalo T H lsa J	2004	J Alloy Comp2004，374，：	1
	10	Effect of boron substitution on the preparation and luminescence of Euz+ doped strontium aluminates 显示文摘	NIITTYKOSKI J AITASALO T HOLSA J	2004	Journal of Alloys and Compounds2004，374，12：	1
	11	The expression of heat shock protein 27 in retinal ganglion and glial cells in a rat glaucoma model 显示文摘	Kalesnykas G Niittykoski M Rantala J Miettinen R Salminen A Kaarniranta K	2007	Neuroscience2007，150，3：	1
	12	显示文摘	Niittykoski J Aitasalo T Holsa H	2004	Journal of Alloys and Compounds2004，374，：	1

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