CN101586028A - A kind of novel gadolinium gallate white light nanometer luminescent material of activated by dysprosium - Google Patents

A kind of novel gadolinium gallate white light nanometer luminescent material of activated by dysprosium Download PDF

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CN101586028A
CN101586028A CNA2008100710965A CN200810071096A CN101586028A CN 101586028 A CN101586028 A CN 101586028A CN A2008100710965 A CNA2008100710965 A CN A2008100710965A CN 200810071096 A CN200810071096 A CN 200810071096A CN 101586028 A CN101586028 A CN 101586028A
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white
light nanometer
dysprosium
novel
luminescent material
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涂朝阳
吕万聪
游振宇
朱昭捷
李坚富
王燕
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Fujian Institute of Research on the Structure of Matter of CAS
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Fujian Institute of Research on the Structure of Matter of CAS
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Abstract

A kind of novel gadolinium gallate white light nanometer luminescent material of activated by dysprosium relates to the nano luminescent material field.The chemical formula of this white-light nanometer luminous material is Dy 3+: Gd 3Ga 5O 12Adopt the gadolinium sesquioxide Gd of 5N purity 2O 3With dysprosium oxide Dy 2O 3, 4N purity gallium nitrate Ga (NO 3) 3, analytically pure nitric acid HNO 3, glycine HO 2CCH 2NH 2, hydration citric acid C 6H 8O 7H 2O and ammoniacal liquor NH 4NO 3As raw material, obtain Dy by reactant aqueous solution and high-temp combustion 3+: Gd 3Ga 5O 12Novel white-light nanometer luminous material, this material is used for fields such as illumination, demonstration and detection system.

Description

A kind of novel gadolinium gallate white light nanometer luminescent material of activated by dysprosium
Technical field
The present invention relates to the nano luminescent material field.
Background technology
Gd 3Ga 5O 12Crystal belongs to isometric system, and spacer is Ia3d, and unit cell parameters is: a=12.41
Figure A20081007109600031
V=1898.75
Figure A20081007109600032
Gd 3Ga 5O 12The symmetry of the crystallographic site at the Gd ion place in the crystalline structure is D 2, ion Dy can be activated 3+Replace, luminous efficiency is higher.
In nano material, exist a large amount of defectives, because the existence of these defectives makes nano material show the bigger non-linear optical effect and the stronger characteristics of luminescence, at Gd 3Ga 5O 12In the nano material, also have because Ga simultaneously 2O 3Gd, is worked as in oxygen and gallium room that volatilization causes therefore 3Ga 5O 12Nano material has just produced stronger luminously under the irradiation of UV-light at 400～650nm wave band, centre wavelength is 450nm.In addition, determined Dy by ionic electronic structure characteristic 3+Ion can produce the blue emission of stronger 482nm wave band and the yellow emission of 581nm wave band, as the Dy of doping appropriate amount under the irradiation in UV-light 3+During ion, by nano based material and Dy 3+The indigo plant that ion produced, yellow dichromatism fluorescence can produce effective mixing, thereby produce the emission of strong white light, so Dy 3+: Gd 3Ga 5O 12Nano material can be used as a kind of novel white light emitting material, in fields such as illumination, demonstration and detection systems good application prospects is arranged all.
Summary of the invention
The objective of the invention is to disclose a kind of novel white-light nanometer luminous material Dy 3+: Gd 3Ga 5O 12
Realize the object of the invention technical scheme:
1. the novel gadolinium gallate white light nanometer luminescent material of an activated by dysprosium, it is characterized in that: the chemical formula of this white-light nanometer luminous material is Dy 3+: Gd 3Ga 5O 12
2. the preparation method of the white-light nanometer luminous material of an item 1 is characterized in that: the gadolinium sesquioxide Gd that adopts 5N purity 2O 3With dysprosium oxide Dy 2O 3, 4N purity gallium nitrate Ga (NO 3) 3, analytically pure nitric acid HNO 3, glycine HO 2CCH 2NH 2, hydration citric acid C 6H 8O 7H 2O and ammoniacal liquor NH 4NO 3As raw material, obtain Dy by reactant aqueous solution and high-temp combustion 3+: Gd 3Ga 5O 12Novel white-light nanometer luminous material.
3. the purposes of the white-light nanometer luminous material of an item 1, it is characterized in that: this material is used for fields such as illumination, demonstration and detection system.
Work as Gd 3Ga 5O 12Nano material is under the irradiation of UV-light, and the matrix defective has just produced stronger luminous at 400～650nm wave band, and centre wavelength is 450nm.In addition, determined Dy by ionic electronic structure characteristic 3+Ion can produce the blue emission of stronger 482nm wave band and the yellow emission of 581nm wave band, as the Dy of doping appropriate amount under the irradiation in UV-light 3+During ion, by nano based material and Dy 3+The indigo plant that ion produced, yellow dichromatism fluorescence can produce effective mixing, thereby produce the emission of strong white light,
Embodiment:
Embodiment one:
Nano material has many synthesis preparation methods, combustion method is a kind of easy synthetic method, this method has that equipment is simple, cost is low, granularity is little, productive rate and purity advantages of higher, and is well suited for preparation poly phase composite oxide nano material, therefore adopts this method to prepare Dy 3+: Gd 3Ga 5O 12Nano luminescent material.Raw materials used is the gadolinium sesquioxide Gd of 5N purity 2O 3With dysprosium oxide Dy 2O 3, 4N purity gallium nitrate Ga (NO 3) 3, analytically pure nitric acid HNO 3, hydration citric acid C 6H 8O 7H 2O and ammoniacal liquor NH 4NO 3, the mol ratio of hydration citric acid and total metal ion was got 1: 1.
According to the doping ratio of Dy/Gd=1/99, take by weighing a certain amount of gadolinium sesquioxide Gd 2O 3With dysprosium oxide Dy 2O 3Raw material, and heating is dissolved in nitric acid HNO 3, make mixing liquid; Then according to Gd 3Ga 5O 12The stoichiometric ratio of molecular formula takes by weighing a certain amount of gallium nitrate Ga (NO 3) 3, and with above-mentioned Gd (NO 3) 3And Dy (NO 3) 3Mixing liquid mixes, and again mixing liquid is poured into a certain amount of deionized water and hydration citric acid C 6H 8O 7H 2React in the mixing liquid of O, its reaction equation is as follows:
3(1-0.01)Gd(NO 3) 3+3×0.01Dy(NO 3) 3+5Ga(NO 3) 3+4C 6H 8O 7→
(Gd 1-0.01Dy) 3Ga 5O 12+24CO 2+16H 2O+12NO 2+6N 2
Next adopt ammoniacal liquor NH 4NO 3It is 3.0 that titration is adjusted to pH value, then the water evaporates of solution, just can obtain yellow xerogel, yellow xerogel is positioned in the retort furnace that is heated to 855 ℃ in advance burnt 10 minutes at last, just obtains the fluffy Dy of white 3+: Gd 3Ga 5O 12Nano luminescent material.This nano luminescent material all has good application prospects in fields such as illumination, demonstration and detection systems.
Embodiment two:
Nano material has many synthesis preparation methods, combustion method is a kind of easy synthetic method, this method has that equipment is simple, cost is low, granularity is little, productive rate and purity advantages of higher, and is well suited for preparation poly phase composite oxide nano material, therefore adopts this method to prepare Dy 3+: Gd 3Ga 5O 12Nano luminescent material.Raw materials used is the gadolinium sesquioxide Gd of 5N purity 2O 3With dysprosium oxide Dy 2O 3, 4N purity gallium nitrate Ga (NO 3) 3, analytically pure nitric acid HNO 3, glycine HO 2CCH 2NH 2With ammoniacal liquor NH 4NO 3The mol ratio of glycine and total metal ion was got 1: 1.
According to the doping ratio of Dy/Gd=1/99, take by weighing a certain amount of gadolinium sesquioxide Gd 2O 3With dysprosium oxide Dy 2O 3Raw material, and heating is dissolved in nitric acid HNO 3, make mixing liquid; Then according to Gd 3Ga 5O 12The stoichiometric ratio of molecular formula takes by weighing a certain amount of gallium nitrate Ga (NO 3) 3, and with above-mentioned Gd (NO 3) 3And Dy (NO 3) 3Mixing liquid mixes, and again mixing liquid is poured into a certain amount of deionized water and glycine C 6H 8O 72H 2React in the mixing liquid of O, its reaction equation is as follows:
3(1-0.01)Gd(NO 3) 3+3×0.01Dy(NO 3) 3+5Ga(NO 3) 3+8HO 2CCH 2NH 2→
(Gd 1-0.01Dy) 3Ga 5O 12+16CO 2+20H 2O+12NO 2+10N 2
Next adopt ammoniacal liquor NH 4NO 3It is 3.0 that titration is adjusted to pH value, then the water evaporates of solution, just can obtain yellow xerogel, yellow xerogel is positioned in the retort furnace that is heated to 900 ℃ in advance burnt 10 minutes at last, just obtains the fluffy Dy of white 3+: Gd 3Ga 5O 12Nano luminescent material.This nano luminescent material all has good application prospects in fields such as illumination, demonstration and detection systems.

Claims (3)

1. the novel gadolinium gallate white light nanometer luminescent material of an activated by dysprosium, it is characterized in that: the chemical formula of this white-light nanometer luminous material is Dy 3+: Gd 3Ga 5O 12
2. the preparation method of the white-light nanometer luminous material of a claim 1 is characterized in that: the gadolinium sesquioxide Gd that adopts 5N purity 2O 3With dysprosium oxide Dy 2O 3, 4N purity gallium nitrate Ga (NO 3) 3, analytically pure nitric acid HNO 3, glycine, glycine HO 2CCH 2NH 2, hydration citric acid C 6H 8O 7H 2O and ammoniacal liquor NH 4NO 3As raw material, obtain Dy by reactant aqueous solution and high-temp combustion 3+: Gd 3Ga 5O 12Novel white-light nanometer luminous material.
3. the purposes of the white-light nanometer luminous material of a claim 1, it is characterized in that: this material is used for illumination, demonstration and detection system field.
CNA2008100710965A 2008-05-22 2008-05-22 A kind of novel gadolinium gallate white light nanometer luminescent material of activated by dysprosium Pending CN101586028A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101871126A (en) * 2010-06-04 2010-10-27 长春理工大学 Gadolinium gallate crystal and growth method thereof
CN102134749A (en) * 2010-01-22 2011-07-27 中国科学院福建物质结构研究所 Dysprosium ion activated gadolinium gallium garnet novel laser crystal
CN104140815A (en) * 2013-05-06 2014-11-12 海洋王照明科技股份有限公司 Samarium-doped rare earth gallate luminescent material, preparing method thereof and applications of the material

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
TAKENORI NUMAZAWA ET.AL.: "《Magneto caloric effect in (DyxGd1-x)3Ga5O12 for adiabatic demagnetization refrigeration》", 《PHYSICA B》 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102134749A (en) * 2010-01-22 2011-07-27 中国科学院福建物质结构研究所 Dysprosium ion activated gadolinium gallium garnet novel laser crystal
CN101871126A (en) * 2010-06-04 2010-10-27 长春理工大学 Gadolinium gallate crystal and growth method thereof
CN101871126B (en) * 2010-06-04 2012-06-13 长春理工大学 Gadolinium gallate crystal and growth method thereof
CN104140815A (en) * 2013-05-06 2014-11-12 海洋王照明科技股份有限公司 Samarium-doped rare earth gallate luminescent material, preparing method thereof and applications of the material

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Application publication date: 20091125