Optical absorption and spectroscopic characteristics of Tm3+ ions doped NaY(MoO4)2 crystal

Triple molybdate scheelite-type upconversion phosphor NaCaLa(MoO4)3:Er3+/Yb3+: structural and spectroscopic properties

“…Er 3+ and Yb 3+ ion co-doping can remarkably enhance the UC efficiency for the shift from the infrared to visible light due to the efficiency of the energy transfer from Yb 3+ to Er 3+ . [15][16][17] For the preparation of the double molybdate NaLn(MoO 4 ) 2 , several processes have been developed via specific preparation processes, including solid-state reactions, 4,8,[18][19][20][21] the sol-gel method, 22,23 Czochralski growth, [24][25][26][27] the hydrothermal method, [28][29][30][31][32] the microwave assisted hydrothermal method 33 and pulsed laser deposition. 34 Nevertheless, it is necessary to create new triple molybdate compounds for the observation of the UC photoluminescence in the materials and to search for features such as a well-defined morphology and stable UC luminescent properties.…”

Microwave Sol-Gel Derived Ho3+/Yb3+ Co-Doped NaCaGd(MoO4)3 Phosphors and their Upconversion Photoluminescence

“…Co-doping of Ho 3+ and Yb 3+ ions can remarkably enhance the UC efficiency, allowing a frequency shift from the infrared to the visible range due to the high efficiency of the energy transfer from Yb 3+ to Ho 3+ . [9][10][11] For the preparation of the binary molybdate NaLn(MoO 4 ) 2 , several processes have been developed via specific preparation processes, including solid-state reactions, [12][13][14][15] the solgel method, 16,17) the Czochralski method, [18][19][20][21] the hydrothermal method, [22][23][24][25][26] the microwave assisted hydrothermal method, 27) and the pulse laser deposition. 28) It is necessary to create new ternary molybdate compounds for realization of UC photoluminescence in products with such features as well defined morphology and stable UC luminescent properties.…”

Judd–Ofelt analysis of spectroscopic properties of Tm3+ ions in K2YF5 crystal

“…where [24] reduced matrix elements of unit tensor operators, which are considered to be independent of host matrix and can be found in Ref. [17].…”