CN101830638A - Novel europium ion-doped high-brightness cyan silicate light emitting glass - Google Patents

Novel europium ion-doped high-brightness cyan silicate light emitting glass Download PDF

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Publication number
CN101830638A
CN101830638A CN200910111233A CN200910111233A CN101830638A CN 101830638 A CN101830638 A CN 101830638A CN 200910111233 A CN200910111233 A CN 200910111233A CN 200910111233 A CN200910111233 A CN 200910111233A CN 101830638 A CN101830638 A CN 101830638A
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China
Prior art keywords
light emitting
glass
parts
silicate
emitting glass
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CN200910111233A
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Chinese (zh)
Inventor
涂朝阳
陈贵堂
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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Priority to CN200910111233A priority Critical patent/CN101830638A/en
Publication of CN101830638A publication Critical patent/CN101830638A/en
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Abstract

The invention relates to the field of light emitting materials of glass. The novel silicate light emitting glass comprises the following components in parts by weight: 59 parts of SiO2, 15 parts of Al2O3, 5 parts of Na2O, 20 parts of SrO and 1 part of Eu2O3, and as well as 5 parts of Al. Analytically pure silicon dioxide (SiO2), aluminum oxide (Al2O3), sodium carbonate (Na2CO3), strontium carbonate (SrCO3), europium oxide (Eu2O3) and aluminum powder (Al) which are used as raw materials are treated by high temperature melting and quenching methods to obtain novel europium-doped high-brightness cyan silicate light emitting glass. The silicate light emitting glass has a potential application in a light emitting diode (LED).

Description

Europium ion-doped novel high-brightness cyan silicate light emitting glass
Technical field
The present invention relates to the luminous glass material field.
Background technology
Component is SiO 2-Al 2O 3-Na 2The silicate glass chemical property of O-SrO is stable, sees through wide waveband, is easy to make processing.At doping Eu 3+Behind the ion, excite down in 394nm and to send the high brightness ruddiness that peak value is positioned at 614nm.To this doping Eu 3+After adding an amount of aluminium powder in the ionic silicate glass, Eu 3+Be reduced into Eu 2+, under same excitation wavelength, sending peak value and be positioned at 490nm, halfwidth reaches the blue or green light of high brightness of 105nm.With respect to other method of reducing, such as reducing atmosphere that needs complexity, expensive device and radiation, our method is promptly simple, and is economical again, can not pollute environment.Because its excitation wavelength all is positioned at 394nm, this is the emission wavelength of sophisticated InGaN chip, so they have the potential application of photodiode (LED).
Summary of the invention
The objective of the invention is to disclose novel europium doping high-brightness cyan silicate light emitting glass.
The europium ion-doped novel light-emitting glass of the present invention's preparation, composition is 49SiO 2-15Al 2O 3-5Na 2O-20SrO-1Eu 2O 3The glass sample of-5Al excites at 394nm launches the blue or green light that peak value is positioned at 490nm down.
Analytically pure silicon-dioxide SiO is adopted in the preparation of this fluorescent glass 2, aluminium oxide Al 2O 3, yellow soda ash Na 2CO 3, Strontium carbonate powder SrCO 3, europium sesquioxide Eu 2O 3With aluminium powder Al as raw material, obtain the novel high-brightness cyan silicate light emitting glass that europium ion mixes by high-temperature fusion quenching method.
This novel high-brightness cyan silicate light emitting glass is applied to photodiode (LED) field.
Eu 3+Ion and the Eu that is obtained by the reduction of Al powder 2+Ion all has intensive to absorb at 394nm, under this light source activation, can produce the fluorescent emission of blue or green light of 614nm, the 490nm wave band of high brightness respectively.
Description of drawings:
Accompanying drawing 1 is: composition is 49SiO 2-15Al 2O 3-5Na 2O-20SrO-1Eu 2O 3The emission spectrum of glass sample under 394nm excites, illustration is its photo under this wavelength excites.Accompanying drawing 2 is: composition is 49SiO 2-15Al 2O 3-5Na 2O-20SrO-1Eu 2O 3The emission spectrum of the glass sample of-5Al under 394nm excites, illustration is its photo under inferior wavelength excites.
Embodiment:
Embodiment 1:
Glass material has multiple synthesis preparation method, and melting quench method is a kind of easy method, and this method has advantages such as equipment is simple, cost is low, processing requirement is low, machine-shaping is easy, can be mass-produced.Therefore, adopt this method to prepare the silicate fluorescent glass.Raw materials used is analytically pure silicon-dioxide SiO 2, aluminium oxide Al 2O 3, yellow soda ash Na 2CO 3, Strontium carbonate powder SrCO 3, europium sesquioxide Eu 2O 3With aluminium powder Al.
With silicon-dioxide SiO 2, aluminium oxide Al 2O 3, yellow soda ash Na 2CO 3, Strontium carbonate powder SrCO 3, europium sesquioxide Eu 2O 3In 59: 15: 5: 20: 1 ratio took by weighing, and after the grinding evenly, placed 1560 degrees centigrade of calcinings 2 hours.After waiting to melt, pour mould rapidly into, implement quenching, obtain water white glass sample.
On the basis of aforementioned proportion, add 5 parts aluminium powder Al again, behind same preparation method, following reaction takes place:
3Eu 2O 3+2Al→6EuO+Al 2O 3
Obtain the glass sample of yellow transparent at last.This silicate fluorescent glass has potential to use on photodiode (LED).

Claims (3)

1. the novel high-brightness cyan silicate light emitting glass that mixes of europium ion, it is characterized in that: this fluorescent glass composition is 9SiO 2-15Al 2O 3-5Na 2O-20SrO-1Eu 2O 3-5Al launches the blue or green light that peak value is positioned at 490nm under 394nm excites.
2. the preparation method of the fluorescent glass of a claim 1 is characterized in that: adopt silicon-dioxide, aluminum oxide, yellow soda ash, Strontium carbonate powder, europium sesquioxide and aluminium powder obtain the novel high-brightness cyan silicate light emitting glass that europium ion mixes as raw material by high-temperature fusion quenching method
3. the purposes of the novel high-brightness cyan silicate light emitting glass of a claim 1, it is characterized in that: this material is used for fields such as photodiode.
CN200910111233A 2009-03-13 2009-03-13 Novel europium ion-doped high-brightness cyan silicate light emitting glass Pending CN101830638A (en)

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CN200910111233A CN101830638A (en) 2009-03-13 2009-03-13 Novel europium ion-doped high-brightness cyan silicate light emitting glass

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Application Number Priority Date Filing Date Title
CN200910111233A CN101830638A (en) 2009-03-13 2009-03-13 Novel europium ion-doped high-brightness cyan silicate light emitting glass

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CN101830638A true CN101830638A (en) 2010-09-15

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Cited By (5)

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CN102148238A (en) * 2010-12-09 2011-08-10 中山大学 Composite dielectric material doped with rare-earth metal oxide and manufacturing method thereof
CN102531564A (en) * 2012-02-29 2012-07-04 中国科学院上海光学精密机械研究所 Red-yellow light composite transparent ceramics packaged by white light LED (light-emitting diode) and preparation method thereof
CN103130414A (en) * 2013-03-05 2013-06-05 中山大学 Rare earth-doped silicate luminescent glass and preparation method thereof
CN113264687A (en) * 2021-06-23 2021-08-17 湘潭大学 Topology chemical reduction Eu3+/Eu2+Co-doped UV-LED white light microcrystalline glass and preparation method thereof
CN115448603A (en) * 2022-10-28 2022-12-09 昆明理工大学 Divalent trivalent europium ion coexisting oxyfluoride aluminosilicate glass ceramic and preparation thereof

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102148238A (en) * 2010-12-09 2011-08-10 中山大学 Composite dielectric material doped with rare-earth metal oxide and manufacturing method thereof
CN102148238B (en) * 2010-12-09 2012-11-14 中山大学 Composite dielectric material doped with rare-earth metal oxide and manufacturing method thereof
CN102531564A (en) * 2012-02-29 2012-07-04 中国科学院上海光学精密机械研究所 Red-yellow light composite transparent ceramics packaged by white light LED (light-emitting diode) and preparation method thereof
CN103130414A (en) * 2013-03-05 2013-06-05 中山大学 Rare earth-doped silicate luminescent glass and preparation method thereof
CN103130414B (en) * 2013-03-05 2014-12-24 中山大学 Rare earth-doped silicate luminescent glass and preparation method thereof
US9416312B2 (en) 2013-03-05 2016-08-16 Sun Yat-Sen University Rare earth ions doped silicate luminescent glass and preparation method thereof
CN113264687A (en) * 2021-06-23 2021-08-17 湘潭大学 Topology chemical reduction Eu3+/Eu2+Co-doped UV-LED white light microcrystalline glass and preparation method thereof
CN115448603A (en) * 2022-10-28 2022-12-09 昆明理工大学 Divalent trivalent europium ion coexisting oxyfluoride aluminosilicate glass ceramic and preparation thereof

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Application publication date: 20100915