TY  - GEN
A1  - Jüstel, Thomas
A1  - Keil, Jan-Niklas
T1  - Zur Wasseraufbereitung auf Basis multispektraler Xe-Excimerstrahler, 3. Mülheimer Wasseranalytisches Seminar, MWAS 2018, Mülheim an der Ruhr, September 2018
Y1  - 2018
ER  - 
TY  - GEN
A1  - Keil, Jan-Niklas
A1  - Broxtermann, Mike
A1  - Jüstel, Thomas
T1  - Novel UV-C Emitting Phosphors for Hg Low Pressure Discharge Lamps, 20th JCF-Frühjahrssymposium, March 2018, Konstanz
Y1  - 2018
ER  - 
TY  - JOUR
A1  - Keil, Jan-Niklas
A1  - Lindfeld, Elisa
A1  - Jüstel, Thomas
T1  - Synthesis and characterization of Sr3(PO4)2:Pr3+,Si4+
JF  - Journal of Luminescence
Y1  - 2020
U6  - http://dx.doi.org/10.1016/j.jlumin.2020.117376
SN  - 0022-2313
VL  - 225
SP  - 117376
ER  - 
TY  - JOUR
A1  - Keil, Jan-Niklas
A1  - Paulsen, Christian
A1  - Rosner, Florian
A1  - Pöttgen, Rainer
A1  - Jüstel, Thomas
T1  - On the crystal structure and optical spectroscopy of rare earth comprising quaternary tungstates Li3Ba2RE3(WO4)8 (RE = La-Nd, Sm-Ho)
JF  - Dalton Transactions
N2  - The quaternary tungstates Li3Ba2RE3(WO4)8 (RE = La-Nd, Sm-Ho) were obtained by a ceramic synthesis route and were characterized by powder and single crystal X-ray diffraction. The structures of Li3Ba2Pr3(WO4)8 and Li3Ba2Tb3(WO4)8 were refined from single crystal diffractometer data: RbLiBi2(MoO4)4 type, space group C2/c, a = 528.57(2), b = 1292.39(6), c = 1934.80(10) pm, b = 91.522(4)°, 2151 F2 values, 108 parameters for Li3Ba2Pr3(WO4)8 and a = 520.54(2), b = 1272.03(6), c = 1918.85(10) pm, b = 91.948(4)°, 2020 F2 values, 108 variables for Li3Ba2Tb3(WO4)8. Striking polyhedral building units in these tungstates are WO4 tetrahedra and LiO6 octahedra, while the mixed occupied site and the barium atoms have higher coordination numbers, i.e. RE/Li@O8 and Ba@O10. In addition to the powder quality assessment by means of reflection spectroscopy, the synthesized samples were studied for their suitability as a scintillator material. Therefore, X-ray excited luminescence measurements where performed. Apart from Li3Ba2Ce3(WO4)8 and Li3Ba2Nd3(WO4)8, all compounds show strong emission under X-ray irradiation. Li3Ba2La3(WO4)8 and Li3Ba2Gd3(WO4)8 show blue CT luminescence caused by tungstate units, while the other samples show typical and multiple lines due to well known [Xe]4fn → [Xe]4fn transitions.
Y1  - 2021
U6  - http://dx.doi.org/10.1039/D1DT00795E
SN  - 1477-9226
VL  - 50
SP  - 9225
EP  - 9235
ER  - 
TY  - JOUR
A1  - Keil, Jan-Niklas
A1  - Paulsen, Christian
A1  - Pöttgen, Rainer
A1  - Jüstel, Thomas
T1  - On the Crystal Structure and Temperature Dependent Spectroscopy of the UV-C Emitting Phosphor Sr3(BO3)2:Pr3+,Na+
JF  - Journal of Luminescence
Y1  - 2021
U6  - http://dx.doi.org/10.1016/j.jlumin.2020.117765
SN  - 0022-2313
VL  - 230
SP  - 117765
ER  - 
TY  - JOUR
A1  - Keil, Jan-Niklas
A1  - Jenneboer, Heike
A1  - Jüstel, Thomas
T1  - Temperature dependent luminescence of Pr3+ doped NaCaPO4
JF  - Journal of Luminescence
Y1  - 2021
U6  - http://dx.doi.org/10.1016/j.jlumin.2021.118307
SN  - 0022-2313
VL  - 238
SP  - 118307
ER  -