Title :
Structure and luminescent properties of calcium and manganese rare-earth tetrametagermanates
Author :
Leonidov, I.I. ; Zubkov, V.G. ; Tarakina, N.V. ; Surat, L.L. ; Tyutyunnik, A.P. ; Baklanova, I.V. ; Perelyaeva, L.A. ; Koryakova, O.V.
Author_Institution :
Inst. of Solid State Chem., Russian Acad. of Sci., Yekaterinburg, Russia
Abstract :
This work investigates a new group of optical materials, that are known as calcium and manganese rare-earth tetrametagermanates, Ln2M2+Ge4O12, Ln = Eu - Lu or Y, M2+ = Ca, Mn, and solid solutions ErxY2-xCaGe4O12, PrxY2-xCaGe4O12, PrxY2-xMnGe4O12, 0 les x les 2. These materials are synthesized and their crystal and optical properties are investigated. Finally, infrared vibrational and Raman-scattering measurements confirm the structural feature of the calcium and manganese rare-earth tetrametagermanates and indicate their isostructural relationship with A2M(VO3)4 (A=Na, Ag; M=Ca, Sr).
Keywords :
Raman spectra; calcium compounds; crystal structure; dysprosium compounds; erbium compounds; europium compounds; gadolinium compounds; holmium compounds; infrared spectra; lutetium compounds; manganese compounds; optical materials; photoluminescence; praseodymium compounds; terbium compounds; thulium compounds; vibrational states; ytterbium compounds; yttrium compounds; Dy2CaGe4O12; Dy2MnGe4O12; Er2CaGe4O12; ErxY2-xCaGe4O12; Eu2CaGe4O12; Eu2MnGe4O12; Gd2CaGe4O12; Gd2MnGe4O12; Ho2CaGe4O12; Ho2MnGe4O12; Lu2CaGe4O12; PrxY2-xCaGe4O12; PrxY2-xMnGe4O12; Raman-scattering measurements; Tb2CaGe4O12; Tb2MnGe4O12; Tm2CaGe4O12; Yb2CaGe4O12; calcium rare-earth tetrametagermanates; crystal properties; infrared vibrational measurements; isostructural relationship; luminescent properties; manganese rare-earth tetrametagermanates; optical materials; optical properties; solid solutions; structural properties; Atomic layer deposition; Atomic measurements; Calcium; Chemistry; Erbium; Laser excitation; Manganese; Optical materials; Solids; Vibration measurement;
Conference_Titel :
Lasers and Electro-Optics 2009 and the European Quantum Electronics Conference. CLEO Europe - EQEC 2009. European Conference on
Conference_Location :
Munich
Print_ISBN :
978-1-4244-4079-5
Electronic_ISBN :
978-1-4244-4080-1
DOI :
10.1109/CLEOE-EQEC.2009.5196454
