CN102127442B - Zirconium phosphate-based luminescent material as well as preparation method and application thereof - Google Patents
Zirconium phosphate-based luminescent material as well as preparation method and application thereof Download PDFInfo
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Abstract
The invention discloses a zirconium phosphate-based luminescent material. The composition of the luminescent material is shown as the following general formula: (Ln1-yTby)0.33Zr2(PO4)3, wherein y is more than or equal to 0 and less than or equal to 1; and Ln is a trivalent ion of one or more of Y, La, Gd and Lu. The zirconium phosphate-based luminescent material can be prepared by adopting a high temperature solid phase method or a chemical solution method. The luminescent material can be used as a blue-white, yellow-green or green VUV (Vacuum Ultraviolet) fluorescent material and can also be used as a yellow-green or green scintillator material for application to X ray medical imaging, high-energy ray safety detection, light-emitting diodes, display apparatuses, tricolor fluorescent lamps and field emission displays. Moreover, a preparation process of the zirconium phosphate-based luminescent material is safe, is easy and convenient to operate, is suitable for large-scale production and belongs to environment-friendly, low-energy-consumption and high-benefit industries, raw materials have low costs and are readily available, and basically no industrial three wastes are produced in the reaction process.
Description
Technical field
The present invention relates to a kind of zirconium phosphate base luminescent material and its preparation method and application, especially relate to a kind of glow color adjustable, the doping Tb
3+Rare earth zirconium phosphate luminescent material and its preparation method and application, belong to the phosphor technical field.
Background technology
The fast development of science and technology has promoted the application of phosphor in every field greatly: from the conventional fluorescent of lighting field with fluorescent material with three basic colour to white light LEDs, to the plasma flat-plate technique of display to photo luminescent devices, luminescent material constantly shows its unique advantage from the conventional cathode ray of technique of display.Along with universal as the information network of core take computer, communication, and the rapid expansion of personal digital assistant device produce market, flat panel display shows good market outlook.By in " the national medium-term and long-term scientific and technical development program outline (2020) " of State Council issue using the large size flat-panel monitor as the problem of first developing, and phosphor becomes the key that realizes this technology.Meanwhile, each field also improves constantly for the requirement of luminescent material performance, and the luminescent material application is also constantly to the other field expansion, and the luminescent material that exploitation has application prospect is significant.At present commercial various phosphors in various degree exist luminous efficiency low, purity of color is poor, the shortcomings such as poor chemical stability.
Follow the exploitation of novel material system, the investigator has been noted that PO
4, ZrO
6And Zr (PO
4)
6Group is fine compound ion luminescence center, can effectively absorb ultraviolet and vacuum-ultraviolet light, and Energy Efficient is passed to rare earth ion.As: YPO
4: Eu
3+In the efficient red emission of vacuum ultraviolet-excited lower generation, can be used for plasma flat and show red fluorescence material; CaZr (PO
4)
2: Tb
3+In 172 nanometers, excite lower emission peak position in 543 nanometers, can be used for the PDP green fluorescent material.The vacuum ultraviolet (VUV) luminosity of the excellence that has for zirconium phosphoric acid salt starts to be subject to extensive concern.The investigator of various countries has mainly launched the research for zirconium phosphoric acid salt luminosity beyond paying close attention to the phosphatic fast-ionic conductor character of zirconium.The material of exploitation multifunction is the inexorable trend of following Materials, and a lot of materials all not only are applied in a field, as NaZr
2(PO
4)
3Be a kind of good fast ion conducting material, pass through simultaneously rare earth ion dopedly, this material is also a kind of vacuum ultraviolet-excited luminescent material with application potential.Therefore, the exploitation raw materials cost is low, and the preparation method is simple, integrates several functions, and luminescent spectrum is adjustable novel excellent luminescent material system within the specific limits, and to improving China's independent intellectual property right level, creating great economic benefit has Great significance.
Summary of the invention
The purpose of this invention is to provide a kind of zirconium phosphate base luminescent material and its preparation method and application, for this area increases class new variety, promote the widespread use of phosphor.
For achieving the above object, the technical solution used in the present invention is as follows:
A kind of zirconium phosphate base luminescent material, its composition is expressed by the following formula:
(Ln
1-yTb
y)
0.33Zr
2(PO
4)
3, 0≤y≤1 wherein, described Ln is the trivalent ion of one or more elements in Y, La, Gd, Lu.
The preparation method of described zirconium phosphate base luminescent material, be high temperature solid-state method, comprises the following steps:
1. according to general formula (Ln
1-yTb
y)
0.33Zr
2(PO
4)
3The stoichiometric ratio of middle corresponding element takes raw material: rare earth oxide, zirconium dioxide and primary ammonium phosphate or Secondary ammonium phosphate, grind and make to mix;
2. the above-mentioned raw material that mixes is packed in alumina crucible, in retort furnace, synthesize: at 900～1200 ℃, soaking time was greater than 3 hours.
Described raw material is recommended as commercially available high-purity (quality percentage composition >=99.99%) or analytical pure compound.
Described rare earth oxide is recommended as Y
2O
3, La
2O
3, Gd
2O
3, Tb
4O
7, Lu
2O
3In one or more combination.
The preparation method of described zirconium phosphate base luminescent material, can also be chemical solution method, comprises the following steps:
A) at first will be according to general formula (Ln
1-yTb
y)
0.33Zr
2(PO
4)
3The rare earth oxide that the stoichiometric ratio of middle corresponding element takes is dissolved in dilute nitric acid solution and obtains clear solution, then adds the complexing agent complex rare-earth ion of certain stoichiometric ratio, then the pH value to 5 of regulator solution～6;
B) will be according to general formula (Ln
1-yTb
y)
0.33Zr
2(PO
4)
3The eight hydration zirconium oxychloride (ZrOCl that the stoichiometric ratio of middle corresponding element takes
28H
2O) in water-soluble solution, obtain clear solution, then add the complexing agent complexing zirconium ion of certain stoichiometric ratio, then the pH value to 7 of regulator solution～8;
C) mix above-mentioned two kinds of solution, stir and make evenly;
D) add the primary ammonium phosphate of stoichiometric ratio or Secondary ammonium phosphate in step c) in the mixing solutions that obtains, stir and make to form clear solution;
E) by steps d) oven dry of resulting clear solution makes to form gel, reheats and makes to form aerogel, and the aerogel that obtains is ground, and obtains precursor powder;
F) by step e) precursor powder that obtains packs in alumina crucible, and in retort furnace, synthesize: first be warmed up to 400～700 ℃, insulation was greater than 2 hours; Be warmed up to 750～1000 ℃, insulation was greater than 4 hours again.
Described rare earth oxide is recommended as Y
2O
3, La
2O
3, Gd
2O
3, Tb
4O
7, Lu
2O
3In one or more combination.
The mass percent concentration of described dilute nitric acid solution is recommended as 15%～50%.
The mol ratio of described rare earth ion and complexing agent is recommended as 1: 1.
The mol ratio of described zirconium ion and complexing agent is recommended as 1: 2.
Described complexing agent is recommended as citric acid or ethylenediamine tetraacetic acid (EDTA).
Described rare earth oxide, eight hydration zirconium oxychlorides and complexing agent are recommended as commercially available high-purity (quality percentage composition >=99.99%) or analytical pure compound.
Step e) the solution bake out temperature in is recommended as 80～100 ℃.
Step e) the aerogel formation temperature that makes in is recommended as 180～300 ℃.
Because measuring result shows: as general formula (Ln
1-yTb
y)
0.33Zr
2(PO
4)
3In y=0 the time, substrate material Ln
0.33Zr
2(PO
4)
3(Tb does not adulterate
3+) be good self-activate luminescence material, be broadband emission, luminous peak position, in the 400nm left and right, has good absorption in the vacuum ultraviolet (VUV) zone, can be luminous for vacuum ultraviolet (VUV) or excitation of X-rays; As general formula (Ln
1-yTb
y)
0.33Zr
2(PO
4)
3In 0<y≤1 o'clock, by Tb
3+Luminescent material (the Ln that doping obtains
1-yTb
y)
0.33Zr
2(PO
4)
3Along with Tb
3+The 375nm when increase of ion doping concentration, luminous highest peak position can be from lower concentrations
5D
3Arrive
7F
6The 543nm when blue light of transition gradually becomes high density
5D
4Arrive
7F
5The green glow of transition, glow color are adjustable within the specific limits, and luminous intensity is high, can be applied as good yellow green light or green light material; And trivalent terbium (Tb
3+) luminescent material (Ln that obtains of ion doping
1-yTb
y)
0.33Zr
2(PO
4)
3Fall time less than 1 millisecond, be a kind of good VUV fluorescent material and scintillator material; Therefore, zirconium phosphate base luminescent material of the present invention can be applicable in the detection safely of X ray medical imaging, energetic ray, photodiode, display material, three-color fluorescent lamp and Field Emission Display.
The inventor thinks, the luminescence mechanism of zirconium phosphate base luminescent material of the present invention mainly is divided into following two kinds:
1. as general formula (Ln
1-yTb
y)
0.33Zr
2(PO
4)
3In y=0 the time, Ln
0.33Zr
2(PO
4)
3The luminous of material is that a kind of self-trapping exciton (self-trapped exciton) is luminous, is with PO
4And Zr (PO
4)
6As luminescence center, in the 190nm left and right, have wide band absorption, under room temperature condition, the emission peak position is at the blue white light of 400nm left and right.
2. as general formula (Ln
1-yTb
y)
0.33Zr
2(PO
4)
3In 0<y≤1 o'clock, (Ln
1-yTb
y)
0.33Zr
2(PO
4)
3Material is Tb
3+The luminescent material that doping obtains, luminescence center is by PO
4And Zr (PO
4)
6To Tb
3+Ion energy transmits, simultaneously Tb
3+The electronic level of ion intrinsic also absorbs the light of specific wavelength, and (Tb does not adulterate so the excitation spectrum of such material comprises substrate material
3+) wide band absorption and the Tb of luminophore
3+The f-d characteristic absorbance of ion; And Tb
3+Ion luminous more responsive to doping content, therefore, the luminescent spectrum of such material is with Tb
3+The variation of ionic concn and changing, along with Tb
3+The increase of doping content, the glow color of such material can be adjusted to green from yellow-green colour, 375nm when luminous highest peak position can be from lower concentration
5D
3Arrive
7F
6The 543nm when blue light of transition gradually becomes high density
5D
4Arrive
7F
5The green glow of transition.
Compared with prior art, zirconium phosphate base luminescent material of the present invention has the following advantages:
1) luminous intensity is high, and luminescent spectrum and glow color adjustable.
2) substrate material Ln
0.33Zr
2(PO
4)
3(Tb does not adulterate
3+) be good self-activate luminescence material, be broadband emission, luminous peak position, in the 400nm left and right, has good absorption in the vacuum ultraviolet (VUV) zone, can be luminous for vacuum ultraviolet (VUV) or excitation of X-rays.
3) Tb
3+Luminescent material (the Ln that doping obtains
1-yTb
y)
0.33Zr
2(PO
4)
3Along with Tb
3+The 375nm when increase of ion doping concentration, luminous highest peak position can be from lower concentrations
5D
3Arrive
7F
6The 543nm when blue light of transition gradually becomes high density
5D
4Arrive
7F
5The green glow of transition, glow color are adjustable within the specific limits, and luminous intensity is high, can be applied as good yellow green light or green light material.
4) trivalent terbium (Tb
3+) luminescent material (Ln that obtains of ion doping
1-yTb
y)
0.33Zr
2(PO
4)
3Fall time less than 1 millisecond, be a kind of good VUV fluorescent material and scintillator material.
5) simple, the simple and safe operation of the preparation technology of zirconium phosphate base luminescent material of the present invention, raw material are cheap and easy to get, are suitable for large-scale production, and reaction process does not have three industrial wastes substantially, belongs to environmental protection, less energy-consumption, high benefit industry.
The accompanying drawing explanation
Fig. 1 is the prepared Y of embodiment 1
0.33Zr
2(PO
4)
3Material sample at ambient temperature, emmission spectrum (dotted line) figure of the excitation spectrum (solid line) of 385nm wavelength monitoring and 195nm wavelength monitoring.
Fig. 2 is the prepared La of embodiment 2
0.33Zr
2(PO
4)
3Material sample at ambient temperature, emmission spectrum (dotted line) figure of the excitation spectrum (solid line) of 410nm wavelength monitoring and 218nm wavelength monitoring.
Fig. 3 is the prepared Gd of embodiment 3
0.33Zr
2(PO
4)
3Material sample at ambient temperature, emmission spectrum (dotted line) figure of the excitation spectrum (solid line) of 312nm wavelength monitoring and 200nm wavelength monitoring.
Fig. 4 is the prepared Lu of embodiment 4
0.33Zr
2(PO
4)
3Material sample at ambient temperature, emmission spectrum (dotted line) figure of the excitation spectrum (solid line) of 405nm wavelength monitoring and 215nm wavelength monitoring.
Fig. 5 is prepared doping different concns (1.6～90mol%) Tb of embodiment 5
3+(Y
1-yTb
y)
0.33Zr
2(PO
4)
3Material (0.016≤y≤0.9) sample at ambient temperature, the comparison diagram of the emmission spectrum of 190nm wavelength monitoring.Spectral line a in figure～1 represents Tb successively
3+Doping content be 1.6mol% (a), 5mol% (b), 10mol% (c), 15mol% (d), 20mol% (e), resulting (Y when 30mol% (f), 40mol% (g), 50mol% (h), 60mol% (i), 70mol% (j), 80mol% (k), 90mol% (l)
1-yTb
y)
0.33Zr
2(PO
4)
3Material sample at ambient temperature, the emmission spectrum of 190nm wavelength monitoring.
Fig. 6 is prepared doping different concns (1.6～90mol%) Tb of embodiment 6
3+(La
1-yTb
y)
0.33Zr
2(PO
4)
3Material (0.016≤y≤0.9) sample at ambient temperature, the comparison diagram of the emmission spectrum of 218nm wavelength monitoring.Spectral line a～i in figure represents Tb successively
3+Doping content resulting (La while being 1.6mol% (a), 5mol% (b), 10mol% (c), 15mol% (d), 20mol% (e), 30mol% (f), 50mol% (g), 70mol% (h), 90mol% (i)
1-yTb
y)
0.33Zr
2(PO
4)
3Material sample at ambient temperature, the emmission spectrum of 218nm wavelength monitoring.
Fig. 7 is prepared doping different concns (1.6～90mol%) Tb of embodiment 7
3+(Gd
1-yTb
y)
0.33Zr
2(PO
4)
3Material (0.016≤y≤0.9) sample at ambient temperature, the comparison diagram of the emmission spectrum of 218nm wavelength monitoring.Spectral line a～i in figure represents Tb successively
3+Doping content resulting (Gd while being 1.6mol% (a), 5mol% (b), 10mol% (c), 15mol% (d), 20mol% (e), 30mol% (f), 50mol% (g), 70mol% (h), 90mol% (i)
1-yTb
y)
0.33Zr
2(PO
4)
3Material sample at ambient temperature, the emmission spectrum of 218nm wavelength monitoring.
Fig. 8 is prepared doping different concns (1.6～90mol%) Tb of embodiment 8
3+(Lu
1-yTb
y)
0.33Zr
2(PO
4)
3Material (0.016≤y≤0.9) sample at ambient temperature, the comparison diagram of the emmission spectrum of 218nm wavelength monitoring.Spectral line a～i in figure represents Tb successively
3+Doping content resulting (Lu while being 1.6mol% (a), 5mol% (b), 10mol% (c), 15mol% (d), 20mol% (e), 30mol% (f), 50mol% (g), 70mol% (h), 90mol% (i)
1-yTb
y)
0.33Zr
2(PO
4)
3Material sample at ambient temperature, the emmission spectrum of 218nm wavelength monitoring.
Fig. 9 is the prepared Tb of embodiment 9
0.33Zr
2(PO
4)
3Material sample at ambient temperature, emmission spectrum (dotted line) figure of the excitation spectrum (solid line) of 543nm wavelength monitoring and 218nm wavelength monitoring.
Embodiment
The invention will be further described below by embodiment, and its purpose only is better to understand content of the present invention but not limits the scope of the invention:
Embodiment 1
A) take Y
2O
3(99.99%) 0.038 gram, be dissolved in the 1mol/L dilute nitric acid solution of 5ml, takes citric acid 0.071 gram and be dissolved in this solution as complexing agent, at room temperature stirs after 30 minutes pH value to 5 with the ammoniacal liquor regulator solution～6;
B) take ZrOCl
28H
2O (analytical pure) 0.645 gram, be dissolved in the 20ml deionized water, adds citric acid 0.841 gram as complexing agent, at room temperature stirs after 30 minutes pH value to 7 with the ammoniacal liquor regulator solution～8;
C) will by step a) and b) two kinds of solution obtaining mix, stir and make evenly;
D) add primary ammonium phosphate (NH
4H
2PO
4, analytical pure) and 0.345 gram, stir and make to form clear solution;
E) by steps d) resulting clear solution makes to form gel 80～100 ℃ of oven dry, then is warmed up to 180～300 ℃ and makes to form aerogel, and the aerogel that obtains is put into to mortar and grind and obtain precursor powder;
F) by step e) resulting precursor powder packs in the alumina crucible of 30mm * Φ 30mm, put in retort furnace, heat-up rate with 3 ℃ of per minutes is warming up to 600 ℃, insulation was greater than 2 hours, continuation is warming up to 900 ℃ with the heat-up rate of 3 ℃ of per minutes, insulation, greater than 4 hours, is taken out after naturally cooling, and the white product that obtains after grinding is Y
0.33Zr
2(PO
4)
3Material.
Fig. 1 is the prepared Y of the present embodiment
0.33Zr
2(PO
4)
3Material sample at ambient temperature, emmission spectrum (dotted line) figure of the excitation spectrum (solid line) of 385nm wavelength monitoring and 195nm wavelength monitoring, as seen from Figure 1: the prepared Y of the present embodiment
0.33Zr
2(PO
4)
3Material is a kind of self-excitation white light emitting material that turns blue, and the emission peak position, in the 400nm left and right, is the blue white fluorescence material of a kind of good VUV.
Embodiment 2
A) take La (OH)
3(99.99%) 0.063 gram, be dissolved in the 1mol/L dilute nitric acid solution of 5ml, takes citric acid 0.071 gram and be dissolved in this solution as complexing agent, at room temperature stirs after 30 minutes pH value to 5 with the ammoniacal liquor regulator solution～6;
B) take ZrOCl
28H
2O (analytical pure) 0.645 gram, be dissolved in the 20ml deionized water, adds citric acid 0.841 gram as complexing agent, at room temperature stirs after 30 minutes pH value to 7 with the ammoniacal liquor regulator solution～8;
C) will by step a) and b) two kinds of solution obtaining mix, stir and make evenly;
D) add Secondary ammonium phosphate ((NH
4)
2HPO
4, analytical pure) and 0.396 gram, stir and make to form clear solution;
E) by steps d) resulting clear solution makes to form gel 80～100 ℃ of oven dry, then is warmed up to 180～300 ℃ and makes to form aerogel, and the aerogel that obtains is put into to mortar and grind and obtain precursor powder;
F) by step e) resulting precursor powder packs in the alumina crucible of 30mm * Φ 30mm, put in retort furnace, heat-up rate with 3 ℃ of per minutes is warming up to 600 ℃, insulation was greater than 2 hours, continuation is warming up to 900 ℃ with the heat-up rate of 3 ℃ of per minutes, insulation, greater than 4 hours, is taken out after naturally cooling, and the white product that obtains after grinding is La
0.33Zr
2(PO
4)
3Material.
Fig. 2 is the prepared La of the present embodiment
0.33Zr
2(PO
4)
3Material sample at ambient temperature, emmission spectrum (dotted line) figure of the excitation spectrum (solid line) of 410nm wavelength monitoring and 218nm wavelength monitoring, as seen from Figure 2: the prepared La of the present embodiment
0.33Zr
2(PO
4)
3Material is a kind of self-excitation white light emitting material that turns blue, and the emission peak position, in the 410nm left and right, is the blue white fluorescence material of a kind of good VUV.
Embodiment 3
Take Gd
2O
3(99.99%) 0.060 gram, be dissolved in the 1mol/L dilute nitric acid solution of 5ml, and all the other contents are with described in embodiment 1 or 2.
The white product that obtains is Gd
0.33Zr
2(PO
4)
3Material.
Fig. 3 is the prepared Gd of the present embodiment
0.33Zr
2(PO
4)
3Material sample at ambient temperature, emmission spectrum (dotted line) figure of the excitation spectrum (solid line) of 312nm wavelength monitoring and 200nm wavelength monitoring, as seen from Figure 3: the prepared Gd of the present embodiment
0.33Zr
2(PO
4)
3Material is a kind of self-excitation white light emitting material that turns blue, and the emission peak position, in the 400nm left and right, is the blue white fluorescence material of a kind of good VUV.
Embodiment 4
Take Lu
2O
3(99.99%) 0.066 gram, be dissolved in the 1mol/L dilute nitric acid solution of 5ml, and all the other contents are with described in embodiment 1 or 2.
The white product that obtains is Lu
0.33Zr
2(PO
4)
3Material.
Fig. 4 is the prepared Lu of the present embodiment
0.33Zr
2(PO
4)
3Material sample at ambient temperature, emmission spectrum (dotted line) figure of the excitation spectrum (solid line) of 405nm wavelength monitoring and 215nm wavelength monitoring, as seen from Figure 4: the prepared Lu of the present embodiment
0.33Zr
2(PO
4)
3Material is a kind of self-excitation white light emitting material that turns blue, and the emission peak position, in the 405nm left and right, is the blue white fluorescence material of a kind of good VUV.
Embodiment 5
By the proportioning shown in table 1, take respectively Y
2O
3And Tb (99.99%)
4O
7(99.99%), be dissolved in the 1mol/L dilute nitric acid solution of 5ml, all the other contents are with described in embodiment 1 or 2.
Y in table 1 the present embodiment
2O
3With Tb
4O
7Proportioning
| Sequence number | Y 2O 3(gram) | Tb 4O 7(gram) | Tb 3+The concentration (mol%) of doping | The y value |
| a | 0.037 | 0.001 | 1.6 | 0.016 |
| b | 0.036 | 0.003 | 5 | 0.05 |
| c | 0.034 | 0.006 | 10 | 0.1 |
| d | 0.032 | 0.009 | 15 | 0.15 |
| e | 0.030 | 0.012 | 20 | 0.2 |
| f | 0.026 | 0.019 | 30 | 0.3 |
| g | 0.023 | 0.025 | 40 | 0.4 |
| h | 0.019 | 0.031 | 50 | 0.5 |
| i | 0.015 | 0.037 | 60 | 0.6 |
| j | 0.011 | 0.044 | 70 | 0.7 |
| k | 0.008 | 0.050 | 80 | 0.8 |
| l | 0.004 | 0.056 | 90 | 0.9 |
The a series of white product that obtain are doping different concns (1.6～90mol%) Tb
3+(Y
1-yTb
y)
0.33Zr
2(PO
4)
3Material (0.016≤y≤0.9).
Fig. 5 is prepared doping different concns (1.6～90mol%) Tb of the present embodiment
3+(Y
1-yTb
y)
0.33Zr
2(PO
4)
3Material (0.016≤y≤0.9) sample at ambient temperature, the comparison diagram of the emmission spectrum of 190nm wavelength monitoring.Spectral line a in figure～1 represents Tb successively
3+Doping content resulting (Y while being 1.6mol% (a), 5mol% (b), 10mol% (c), 15mol% (d), 20mol% (e), 30mol% (f), 40mol% (g), 50mol% (h), 60mol% (i), 70mol% (j), 80mol% (k), 90mol% (l)
1-yTb
y)
0.33Zr
2(PO
4)
3Material sample at ambient temperature, the emmission spectrum of 190nm wavelength monitoring; As seen from Figure 5: different Tb
3+(the Y that doping obtains
1-yTb
y)
0.33Zr
2(PO
4)
3The luminescent spectrum of material can be by regulation and control Tb
3+Ionic concn regulates and controls, along with Tb
3+The increase of ion doping concentration, the strongest luminous peak position gradually becomes 544nm from 377nm, and glow color, from the yellow-green colour to the green, is a kind of good VUV fluorescent material and scintillator material.
Embodiment 6
By the proportioning shown in table 2, take respectively La (OH)
3And Tb (99.99%)
4O
7(99.99%), be dissolved in the 1mol/L dilute nitric acid solution of 5ml, all the other contents are with described in embodiment 1 or 2.
La in table 2 the present embodiment (OH)
3With Tb
4O
7Proportioning
| Sequence number | La(OH) 3(gram) | Tb 4O 7(gram) | Tb 3+The concentration (mol%) of doping | The y value |
| a | 0.062 | 0.001 | 1.6 | 0.016 |
| b | 0.060 | 0.003 | 5 | 0.05 |
| c | 0.057 | 0.006 | 10 | 0.1 |
| d | 0.054 | 0.009 | 15 | 0.15 |
| e | 0.051 | 0.012 | 20 | 0.2 |
| f | 0.044 | 0.019 | 30 | 0.3 |
| g | 0.032 | 0.031 | 50 | 0.5 |
| h | 0.019 | 0.044 | 70 | 0.7 |
| i | 0.006 | 0.056 | 90 | 0.9 |
The a series of white product that obtain are doping different concns (1.6～90mol%) Tb
3+(La
1-yTb
y)
0.33Zr
2(PO
4)
3Material (0.016≤y≤0.9).
Fig. 6 is prepared doping different concns (1.6～90mol%) Tb of the present embodiment
3+(La
1-yTb
y)
0.33Zr
2(PO
4)
3Material (0.016≤y≤0.9) sample at ambient temperature, the comparison diagram of the emmission spectrum of 218nm wavelength monitoring.Spectral line a～i in figure represents Tb successively
3+Doping content resulting (La while being 1.6mol% (a), 5mol% (b), 10mol% (c), 15mol% (d), 20mol% (e), 30mol% (f), 50mol% (g), 70mol% (h), 90mol% (i)
1-yTb
y)
0.33Zr
2(PO
4)
3Material sample at ambient temperature, the emmission spectrum of 218nm wavelength monitoring; As seen from Figure 6: different Tb
3+(the La that doping obtains
1-yTb
y)
0.33Zr
2(PO
4)
3The luminescent spectrum of material can be by regulation and control Tb
3+Ionic concn regulates and controls, along with Tb
3+The increase of ion doping concentration, the strongest luminous peak position gradually becomes 544nm from 377nm, and glow color, from the yellow-green colour to the green, is a kind of good VUV fluorescent material and scintillator material.
Embodiment 7
By the proportioning shown in table 3, take respectively Gd
2O
3And Tb (99.99%)
4O
7(99.99%), be dissolved in the 1mol/L dilute nitric acid solution of 5ml, all the other contents are with described in embodiment 1 or 2.
Gd in table 3 the present embodiment
2O
3With Tb
4O
7Proportioning
| Sequence number | Gd 2O 3(gram) | Tb 4O 7(gram) | Tb 3+The concentration (mol%) of doping | The y value |
| a | 0.059 | 0.001 | 1.6 | 0.016 |
| b | 0.057 | 0.003 | 5 | 0.05 |
| c | 0.054 | 0.006 | 10 | 0.1 |
| d | 0.051 | 0.009 | 15 | 0.15 |
| e | 0.048 | 0.012 | 20 | 0.2 |
| f | 0.042 | 0.019 | 30 | 0.3 |
| g | 0.030 | 0.031 | 50 | 0.5 |
| h | 0.018 | 0.044 | 70 | 0.7 |
| i | 0.006 | 0.056 | 90 | 0.9 |
The a series of white product that obtain are doping different concns (1.6～90mol%) Tb
3+(Gd
1-yTb
y)
0.33Zr
2(PO
4)
3Material (0.016≤y≤0.9).
Fig. 7 is prepared doping different concns (1.6～90mol%) Tb of the present embodiment
3+(Gd
1-yTb
y)
0.33Zr
2(PO
4)
3Material (0.016≤y≤0.9) sample at ambient temperature, the comparison diagram of the emmission spectrum of 218nm wavelength monitoring.Spectrogram a～i in figure represents Tb successively
3+Doping content resulting (Gd while being 1.6mol% (a), 5mol% (b), 10mol% (c), 15mol% (d), 20mol% (e), 30mol% (f), 50mol% (g), 70mol% (h), 90mol% (i)
1-yTb
y)
0.33Zr
2(PO
4)
3Material sample at ambient temperature, the emmission spectrum of 218nm wavelength monitoring; As seen from Figure 7: different Tb
3+(the Gd that doping obtains
1-yTb
y)
0.33Zr
2(PO
4)
3The luminescent spectrum of material can be by regulation and control Tb
3+Ionic concn regulates and controls, along with Tb
3+The increase of ion doping concentration, the strongest luminous peak position gradually becomes 544nm from 377nm, and glow color, from the yellow-green colour to the green, is a kind of good VUV fluorescent material and scintillator material.
Embodiment 8
By the proportioning shown in table 4, take respectively Lu
2O
3And Tb (99.99%)
4O
7(99.99%), be dissolved in the 1mol/L dilute nitric acid solution of 5ml, all the other contents are with described in embodiment 1 or 2.
Lu in table 4 the present embodiment
2O
3With Tb
4O
7Proportioning
| Sequence number | Lu 2O 3(gram) | Tb 4O 7(gram) | Tb 3+The concentration (mol%) of doping | The y value |
| a | 0.065 | 0.001 | 1.6 | 0.016 |
| b | 0.063 | 0.003 | 5 | 0.05 |
| c | 0.060 | 0.006 | 10 | 0.1 |
| d | 0.056 | 0.009 | 15 | 0.15 |
| e | 0.053 | 0.012 | 20 | 0.2 |
| f | 0.046 | 0.019 | 30 | 0.3 |
| g | 0.033 | 0.031 | 50 | 0.5 |
| h | 0.020 | 0.044 | 70 | 0.7 |
| i | 0.007 | 0.056 | 90 | 0.9 |
The a series of white product that obtain are doping different concns (1.6～90mol%) Tb
3+(Lu
1-yTb
y)
0.33Zr
2(PO
4)
3Material (0.016≤y≤0.9).
Fig. 8 is prepared doping different concns (1.6～90mol%) Tb of embodiment 8
3+(Lu
1-yTb
y)
0.33Zr
2(PO
4)
3Material (0.016≤y≤0.9) sample at ambient temperature, the comparison diagram of the emmission spectrum of 218nm wavelength monitoring.Spectral line a～i in figure represents Tb successively
3+Doping content resulting (Lu while being 1.6mol% (a), 5mol% (b), 10mol% (c), 15mol% (d), 20mol% (e), 30mol% (f), 50mol% (g), 70mol% (h), 90mol% (i)
1-yTb
y)
0.33Zr
2(PO
4)
3Material sample at ambient temperature, the emmission spectrum of 218nm wavelength monitoring; As seen from Figure 8: different Tb
3+(the Lu that doping obtains
1-yTb
y)
0.33Zr
2(PO
4)
3The luminescent spectrum of material can be by regulation and control Tb
3+Ionic concn regulates and controls, along with Tb
3+The increase of ion doping concentration, the strongest luminous peak position gradually becomes 544nm from 377nm, and glow color, from the yellow-green colour to the green, is a kind of good VUV fluorescent material and scintillator material.
Embodiment 9
Take Tb
4O
7(99.99%) 0.062 gram, be dissolved in the 1mol/L dilute nitric acid solution of 5ml, and all the other contents are with described in embodiment 1 or 2.
The white product that obtains is Tb
0.33Zr
2(PO
4)
3Material.
Fig. 9 is the prepared Tb of the present embodiment
0.33Zr
2(PO
4)
3Material sample at ambient temperature, emmission spectrum (dotted line) figure of the excitation spectrum (solid line) of 543nm wavelength monitoring and 218nm wavelength monitoring, as seen from Figure 9: the prepared Tb of the present embodiment
0.33Zr
2(PO
4)
3Material is a kind of green light luminescent material, the emission peak position 543nm (
5D
4-
7F
5Energy level transition) left and right, good with the spectrum sensitivity coupling of ccd detector, luminous intensity is high, and green light color purity is high, is a kind of good green glow fluorescent material and scintillator material.
Embodiment 10
A) take Y
2O
3(99.99%) 0.038 gram, ZrO
2(99.99%) 0.247 gram and primary ammonium phosphate (NH
4H
2PO
4, analytical pure) and 0.345 gram or Secondary ammonium phosphate ((NH
4)
2HPO
4, analytical pure) and 0.396 gram, grind and make to mix;
B) the above-mentioned raw material that mixes is packed in the alumina crucible of 30mm * Φ 30mm, put in retort furnace, with the heat-up rate of 3 ℃ of per minutes, be warming up to 1000 ℃, insulation, greater than 3 hours, is taken out after naturally cooling, and the white product that obtains after grinding is Y
0.33Zr
2(PO
4)
3Material.
Embodiment 11
A) take Y
2O
3(99.99%) 0.019 gram, ZrO
2(99.99%) 0.247 gram, Tb
4O
7(99.99%) 0.030 gram and primary ammonium phosphate (NH
4H
2PO
4, analytical pure) and 0.345 gram or Secondary ammonium phosphate ((NH
4)
2HPO
4, analytical pure) and 0.396 gram, grind and make to mix;
B) the above-mentioned raw material that mixes is packed in the alumina crucible of 30mm * Φ 30mm, put in retort furnace, with the heat-up rate of 3 ℃ of per minutes, be warming up to 1000 ℃, insulation was greater than 3 hours, after naturally cooling, take out, the white product that obtains after grinding is (Y
0.5Tb
0.5)
0.33Zr
2(PO
4)
3Material.
Embodiment 12
A) take Tb
4O
7(99.99%) 0.062 gram, ZrO
2(99.99%) 0.247 gram and primary ammonium phosphate (NH
4H
2PO
4, analytical pure) and 0.345 gram or Secondary ammonium phosphate ((NH
4)
2HPO
4, analytical pure) and 0.396 gram, grind and make to mix;
B) the above-mentioned raw material that mixes is packed in the alumina crucible of 30mm * Φ 30mm, put in retort furnace, with the heat-up rate of 3 ℃ of per minutes, be warming up to 1000 ℃, insulation, greater than 3 hours, is taken out after naturally cooling, and the white product that obtains after grinding is Tb
0.33Zr
2(PO
4)
3Material.
The luminous peak position of the prepared luminescent material of above embodiment and the detection data of glow color are shown in Table 5.
Luminous peak position and the glow color of table 5 luminescent material
By as seen from Table 5: as general formula (Ln
1-yTb
y)
0.33Zr
2(PO
4)
3In y=0 the time, substrate material Ln
0.33Zr
2(PO
4)
3(Tb does not adulterate
3+Ion) be the blue white light emitting material of good self activation, luminous peak position, in the 400nm left and right, can be used as the blue white fluorescence material of VUV; As general formula (Ln
1-yTb
y)
0.33Zr
2(PO
4)
3In 0<y≤1 o'clock, by Tb
3+Luminescent material (the Ln that doping obtains
1-yTb
y)
0.33Zr
2(PO
4)
3Along with Tb
3+The 375nm when increase of ion doping concentration, luminous highest peak position can be from lower concentrations
5D
3Arrive
7F
6The 543nm when blue light of transition gradually becomes high density
5D
4Arrive
7F
5The green glow of transition, glow color are adjustable within the specific limits, and luminous intensity is high, can be used as yellow green light or green light material.
Claims (10)
1. a zirconium phosphate base luminescent material, is characterized in that, its composition is expressed by the following formula:
(Ln
1-yTb
y)
0.33Zr
2(PO
4)
3, 0<y<1 wherein, described Ln is the trivalent ion of one or more elements in Y, La, Gd, Lu.
2. the preparation method of a zirconium phosphate base luminescent material claimed in claim 1, is characterized in that, is chemical solution method, comprises the following steps:
A) at first will be according to general formula (Ln
1-yTb
y)
0.33Zr
2(PO
4)
3The rare earth oxide that the stoichiometric ratio of middle corresponding element takes is dissolved in dilute nitric acid solution and obtains clear solution, then adds the complexing agent complex rare-earth ion of certain stoichiometric ratio, then the pH value to 5 of regulator solution～6;
B) will be according to general formula (Ln
1-yTb
y)
0.33Zr
2(PO
4)
3The eight hydration zirconium oxychloride (ZrOCl that the stoichiometric ratio of middle corresponding element takes
28H
2O) in water-soluble solution, obtain clear solution, then add the complexing agent complexing zirconium ion of certain stoichiometric ratio, then the pH value to 7 of regulator solution～8;
C) mix above-mentioned two kinds of solution, stir and make evenly;
D) add the primary ammonium phosphate of stoichiometric ratio or Secondary ammonium phosphate in step c) in the mixing solutions that obtains, stir and make to form clear solution;
E) by steps d) oven dry of resulting clear solution makes to form gel, reheats and makes to form aerogel, and the aerogel that obtains is ground, and obtains precursor powder;
F) by step e) precursor powder that obtains packs in alumina crucible, and in retort furnace, synthesize: first be warmed up to 400～700 ℃, insulation was greater than 2 hours; Be warmed up to 750～1000 ℃, insulation was greater than 4 hours again.
3. the preparation method of zirconium phosphate base luminescent material according to claim 2, it is characterized in that: described rare earth oxide is Y
2O
3, La
2O
3, Gd
2O
3, Tb
4O
7, Lu
2O
3In one or more combination.
4. the preparation method of zirconium phosphate base luminescent material according to claim 2, it is characterized in that: the mass percent concentration of described dilute nitric acid solution is 15% ~ 50%.
5. the preparation method of zirconium phosphate base luminescent material according to claim 2, it is characterized in that: the mol ratio of described rare earth ion and complexing agent is 1:1.
6. the preparation method of zirconium phosphate base luminescent material according to claim 2, it is characterized in that: the mol ratio of described zirconium ion and complexing agent is 1:2.
7. the preparation method of zirconium phosphate base luminescent material according to claim 2, it is characterized in that: described complexing agent is citric acid or ethylenediamine tetraacetic acid (EDTA).
8. the preparation method of zirconium phosphate base luminescent material according to claim 2, it is characterized in that: the solution bake out temperature step e) is 80～100 ℃.
9. the preparation method of zirconium phosphate base luminescent material according to claim 2, it is characterized in that: the aerogel formation temperature that makes step e) is 180～300 ℃.
10. the application of a zirconium phosphate base luminescent material claimed in claim 1 is characterized in that: described luminescent material is for X ray medical imaging, energetic ray detection safely, photodiode, demonstration equipment, three-color fluorescent lamp and Field Emission Display.
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| CN1523077A (en) * | 2003-09-05 | 2004-08-25 | �й���ѧԺ�����о��� | Method for preparing rare earth oxide group nanometer luminescent powder |
| CN1640984A (en) * | 2004-12-17 | 2005-07-20 | 中国科学院上海硅酸盐研究所 | Fluorescent powder for transmitting green fluorescence and its preparing method |
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| CN1523077A (en) * | 2003-09-05 | 2004-08-25 | �й���ѧԺ�����о��� | Method for preparing rare earth oxide group nanometer luminescent powder |
| CN1640984A (en) * | 2004-12-17 | 2005-07-20 | 中国科学院上海硅酸盐研究所 | Fluorescent powder for transmitting green fluorescence and its preparing method |
Non-Patent Citations (2)
| Title |
|---|
| V.S. Kurazhkovskaya et al..Vibrational spectra and factor group analysis of lanthanide and zirconium phosphates MIII0.33Zr2(PO4)3, where MIII = Y, La–Lu.《Vibrational Spectroscopy》.2010,(第52期),317-143. |
| Vibrational spectra and factor group analysis of lanthanide and zirconium phosphates MIII0.33Zr2(PO4)3, where MIII = Y, La–Lu;V.S. Kurazhkovskaya et al.;《Vibrational Spectroscopy》;20100318(第52期);317-143 * |
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