Room-temperature visible upconversion luminescence of Ni2+ sensitized by Yb3+ in transparent glass ceramics

On the basis of experimental verification, the optimum processing conditions of CaO-B2O3-SiO2(CBS) system transparent glass-ceramics were obtained. Composition of main raw powders (wt%) was:CaO 38%,SiO240%,B2O312%.The precursor glass was prepared by melting method and annealed at 560°C for 2h and cooled to room temperature at a speed of 5°C/min.The best nucleating agent is P2O5. The appropriate heat treatment regime to precursor glass was determined to be 2h at 600°C for nucleation and 3h at 780°C for crystallizition.Under this condition,the transmittion of glass-ceramics at the range of visable light is 72% in average and Sm3+keep good luminescence property doped in this host material.

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Structure and upconversion luminescence of transparent glass-ceramics containing (Er,Yb)2(Ti,Zr)2O7 nanocrystals

Journal of Non-Crystalline Solids ◽

10.1016/j.jnoncrysol.2014.11.012 ◽

2015 ◽

Vol 409 ◽

pp. 54-62 ◽

Cited By ~ 14

Author(s):

O.S. Dymshits ◽

P.A. Loiko ◽

N.A. Skoptsov ◽

A.M. Malyarevich ◽

K.V. Yumashev ◽

...

Keyword(s):

Upconversion Luminescence ◽

Glass Ceramics ◽

Transparent Glass

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Preparation and Characterization of Sm3+ Doped CBS Transparent Glass-Ceramics

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.418-420.796 ◽

2011 ◽

Vol 418-420 ◽

pp. 796-799

Author(s):

Yi Min Wang ◽

Hong Bo Zhang ◽

Chun Hui Su ◽

Dong Dong Fan

Keyword(s):

Room Temperature ◽

Glass Ceramics ◽

Treatment Schedule ◽

Laser Material ◽

Transparent Glass ◽

Melting Method ◽

Strong Luminescence ◽

Heat Treatment Schedule ◽

Precursor Glass

Sm3+ doped transparent glass-ceramics of CaO-B2O3-SiO2 (CBS) system were prepared and characterized.The precursor glass was prepared by melting method and annealed at 450°C for 2h and cooled to room temperature at a speed of 5°C/min.The appropriate heat treatment schedule to precursor glass was determined to be 2h at 600°C for nucleation and 3h at 810°C for crystallizition.The transmittion of glass-ceramics at the range of visable light is 68% in average. Five main emission bands of Sm3+ are centered around 564nm,605nm,646nm,679nm and 789nm,which correspond to the 4G 5/2→6H 5/2,4G 5/2→6H 7/2,4G 5/2→6H 9/2,4G 5/2→6H 11/2 and 4G 5/2→6H 13/2 transitions.Very strong luminescence at around 599nm is observed in glass-ceramics,This indicates glass-ceramics to be a better host for Sm3+ than precursor glass and a hopeful laser material.

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Tunable Red-Green Upconversion Luminescence in Novel Transparent Glass Ceramics Containing Er: NaYF4Nanocrystals

The Journal of Physical Chemistry B ◽

10.1021/jp063145m ◽

2006 ◽

Vol 110 (42) ◽

pp. 20843-20846 ◽

Cited By ~ 184

Author(s):

Feng Liu ◽

En Ma ◽

Daqin Chen ◽

Yunlong Yu ◽

Yuansheng Wang

Keyword(s):

Upconversion Luminescence ◽

Glass Ceramics ◽

Transparent Glass

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Upconversion Emission of Infrared Excited Er3+-Doped Transparent Glass Ceramics Containing CaF2 Nano-Crystals

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.336-338.1846 ◽

2007 ◽

Vol 336-338 ◽

pp. 1846-1848

Author(s):

Da Qin Chen ◽

Yuan Sheng Wang ◽

Yun Long Yu

Keyword(s):

Heating Temperature ◽

Upconversion Luminescence ◽

Glass Ceramics ◽

Upconversion Emission ◽

Photon Absorption ◽

Glassy Matrix ◽

Homogeneous Distribution ◽

Transparent Glass ◽

Quenching Effect ◽

Transition Mechanism

Upconversion luminescence of Er3+-doped SiO2-Al2O3-CaO-NaF-CaF2 transparent glass ceramics under 980 nm excitation was investigated. XRD and TEM experiments revealed the homogeneous distribution of CaF2 nano-crystals among the glassy matrix. Intense red upconversion signal was recorded and its intensity increased with the increasing of heating temperature and Er3+-doping level at the range of 0.1 to 1.0 mol%. When Er3+ doping reached 2 mol%, the concentration quenching effect appeared. All these results could be due to the incorporation of Er3+ ions into precipitated CaF2 nano-crystals. The quadratic pump power dependence of the upconversion luminescence intensity indicated that the transition mechanism of the red emission was due to two-photon absorption processes.

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