CN105906215B - A kind of high transparency Quantum Dot Glass of silver-containing nanoparticles and preparation method thereof - Google Patents

A kind of high transparency Quantum Dot Glass of silver-containing nanoparticles and preparation method thereof Download PDF

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Publication number
CN105906215B
CN105906215B CN201610217996.0A CN201610217996A CN105906215B CN 105906215 B CN105906215 B CN 105906215B CN 201610217996 A CN201610217996 A CN 201610217996A CN 105906215 B CN105906215 B CN 105906215B
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glass
quantum dot
preparation
atmosphere
high transparency
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CN105906215A (en
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杨昕宇
韩丽园
刘海涛
尹德武
徐秦
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Wenzhou University
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Wenzhou University
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    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C14/00Glass compositions containing a non-glass component, e.g. compositions containing fibres, filaments, whiskers, platelets, or the like, dispersed in a glass matrix
    • C03C14/004Glass compositions containing a non-glass component, e.g. compositions containing fibres, filaments, whiskers, platelets, or the like, dispersed in a glass matrix the non-glass component being in the form of particles or flakes
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C2214/00Nature of the non-vitreous component
    • C03C2214/08Metals
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C2214/00Nature of the non-vitreous component
    • C03C2214/16Microcrystallites, e.g. of optically or electrically active material

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Glass Compositions (AREA)

Abstract

High transparency Quantum Dot Glass of the synthesis containing silver nano-grain is controlled by special atmosphere this application discloses a kind of, the technology controlled using sol-gal process combination special atmosphere is prepared for containing such Ag In2O3The high transparency Quantum Dot Glass of structure, by the time of the conversion and the ventilation that adjust atmosphere, it have studied using a variety of means of testing and form the Ag nano particles that particle size is smaller, is evenly distributed under microstructure in glass matrix, and the transparency of glass increases substantially.This special atmosphere is combined by sol-gal process and controls structure Ag In in glass2O3Structure improves the transparency of glass.

Description

A kind of high transparency Quantum Dot Glass of silver-containing nanoparticles and preparation method thereof
Technical field
The present invention relates to a kind of high transparency Quantum Dot Glass of silver-containing nanoparticles, the preparation of the Quantum Dot Glass is further related to Method.
Background technology
In recent years, silver nano-grain due to its catalysis, optics, biology etc. have important and novel property and Cause the interest of scientist.Recently, silver nano-grain is successfully doped to transparent solid matrix and this composite Unique property and potential application optically make it receive much concern.Glass, as a kind of important solid transparent material, no Stable presence environment can be only provided for silver nano-grain, for itself as a kind of good photoelectric material, what is had is transparent Property and uniformity, high mechanical performance and heat endurance, the features such as being easily formed desired shapes and sizes.Therefore, by silver It is to select well that nano particle, which is doped in transparent glass, and the Quantum Dot Glass of silver nano-grain doping is in visible light source Equipment, optical storage, third-order non-linear etc. possess extensive potential value.
But silver nano-grain is doped in clear glass have one it is extremely important the problem of, be exactly when silver nanoparticle It is the transparency that can reduce glass that grain, which is successfully doped in glass,.This also implies that this composite answering in photoelectric field With can be subject to certain restrictions.Therefore, it is very important to solve this problem.
The content of the invention
It is an object of the invention to provide a kind of high transparency Quantum Dot Glass of silver-containing nanoparticles, it is possible to increase is received containing silver The transparency of the Quantum Dot Glass of rice grain, Ag nano particles and the higher quantum dot glass of transparency are formed in glass matrix Glass.
It is a further object to provide the preparation method of above-mentioned Quantum Dot Glass, the preparation method can be in glass A kind of Ag-In is built in matrix2O3Structure improves the transparency of the Quantum Dot Glass containing Ag.
For high transparency Quantum Dot Glass problem, there is provided following technical scheme:A kind of height containing silver nano-grain is thoroughly Bright Quantum Dot Glass, it is characterised in that:Doped with Ag-In in glass body material2O3Compound, wherein Ag is with crystalline state Form is present, In2O3To exist as an amorphous form, Ag, In co-doped to glass body material and both account for doping after mole Than for 0.47%~0.7%, wherein the mol ratio of Ag and In elements is 1: 1.
The present invention is further arranged to, and described glass body is sodium boron silicon-based glass, each component of sodium boron silicon-based glass Mole composition is:Na2O:5~8mol%, B2O3:21~24mol%, SiO2:70~73mol%.
Sodium boron silicon-based glass in foregoing invention, by doped with Ag-In2O3Compound, form with high transparency The Quantum Dot Glass of degree, and the silver nano-grain that particle size is smaller, is evenly distributed is formd in glass matrix.
For the preparation method problem of high transparency Quantum Dot Glass, the invention discloses a kind of height containing silver nano-grain The preparation method of transparent Quantum Dot Glass, it is characterised in that comprise the following steps:
1st, the preparation of xerogel:A, glass colloidal sol is made, b, will be dripped respectively containing the ethanol solution of silver nitrate and indium nitrate It is added in glass colloidal sol, it is 1%~1.5% to add silver nitrate and indium nitrate and account for the mol ratio of glass body material, is sufficiently stirred, Formation contains Ag+And In3+Glass, mounted box and place 1 week after, 120 DEG C dry 4 weeks, i.e., formation contain Ag+And In3+Block Shape xerogel.
2nd, sintering process, xerogel is placed in tube furnace and is sintered:A, first, under oxygen atmosphere, temperature is by room Temperature rise is to 450 DEG C, it is therefore an objective to which removing organic matter and makes silver nitrate and indium nitrate sufficiently decompose, and b, oxygen atmosphere is converted into hydrogen Gas atmosphere is simultaneously incubated at 450 DEG C, it is therefore an objective to forms Ag-In alloy under reducing atmosphere, c, insulation terminate, hydrogen atmosphere turned Change oxygen atmosphere into, and temperature risen to 600 DEG C, by adjust oxidization time to the end it is transparent, completely contain The Quantum Dot Glass of Ag nano particles.
In this method, wherein obtained glass material is sodium boron silicon-based glass, corresponding sodium boron silicon-based glass sol gel process Comprise the following steps, tetraethyl orthosilicate is added slowly to be fully hydrolyzed in the mixed solution of absolute ethyl alcohol and nitric acid by (a), is obtained To SiO2Presoma;(b) boric acid is dissolved into ethylene glycol monomethyl ether, metallic sodium is dissolved into absolute ethyl alcohol and formed respectively B2O3And Na2O presoma;(c) two kinds of solution in (b) are added drop-wise in (a) in solution according to this, be sufficiently stirred at room temperature Form transparent, uniform sodium boron silicon-based glass colloidal sol.
The present invention has the advantages of following several respects compared with prior art:
(1) by building a kind of Ag-In in glass2O3Structure improves the saturating of the Quantum Dot Glass of the nano particle containing Ag Lightness, in sintering process, in a steps, organic matter can be removed and silver nitrate and indium nitrate is sufficiently decomposed, in step b Ag-In alloy is formd, in step c, during Ag-In alloy state, In has higher activity than Ag, and it is first oxidized Obtain In2O3And Ag-In is ultimately formed2O3Compound, the Quantum Dot Glass with the high grade of transparency is formd, and in glass matrix In form the silver nano-grain that particle size is smaller, is evenly distributed.
(2) there is above-mentioned Ag-In2O3The argentiferous Quantum Dot Glass of structure has higher transparency, and this receives solving metal The Quantum Dot Glass of rice grain doping is low the limitation of photoelectric field the problem of due to translucidus.
(3) controlled using special atmosphere to prepare the high transparency Quantum Dot Glass containing silver nano-grain, in preparation method It is upper that there is versatility.
Brief description of the drawings
Quantum Dot Glass sample under Fig. 1 differences dopants and control climate:(a)、O2-H2It is lower to sinter the Ag quantum formed Point glass;(b), (c), (d), different Ag-In2O3O under component2-H2-O2It is lower to sinter the Quantum Dot Glass formed;
Fig. 2 (a) Ag-In2O3Quantum Dot Glass XRD spectrum;(b) different component (pure glass, Ag-In are contained2O3, Ag) Quantum Dot Glass UV-Vis-NIR transmitted light spectrograms;
Fig. 3 .Ag-In2O3The TEM collection of illustrative plates of Quantum Dot Glass:(a) shape appearance figure;(b)SEAD.
Embodiment
With reference to the accompanying drawings and examples, the embodiment of the present invention is described in further detail.Implement below Example is used to illustrate the present invention, but is not limited to the scope of the present invention.
In the present embodiment, glass body material selection sodium boron silicon-based glass, each component mole group of sodium boron silicon-based glass Turn into:Na2O:5~8mol%, B2O3:21~24mol%, SiO2:70~73mol%, glass is made according to said ratio value range Glass colloidal sol, using silver nitrate and indium nitrate as forming metal Ag+And In3+Precursor doped into glass colloidal sol, the ratio of doping Example is 1~1.5mol%, and wherein the mol ratio of Ag and In elements is 1: 1, is sufficiently stirred, and formation contains Ag+And In3+Glass, Mounted box and place 1 week after, 120 DEG C dry 4 weeks, i.e., formation contain Ag+And In3+Block xerogel.
In the process, quantum dot-doped concentration is too low to cause quantum dot to be unfavorable for being formed, and this can cause quantum dot Many properties (such as photoluminescent property, third-order non-linear property) of glass are too low or lack, and doping concentration is too high, in sintering process The middle easy fragmentation of Quantum Dot Glass, is not easy to form complete bulk material, and the transparency of excessive concentration Quantum Dot Glass It can decline.
The building-up process of dry glue is the same as synthesizing the building-up process of sodium boron silicon-based glass in the present embodiment.
Synthetic glass technique is as follows:First, containing Ag+And In3+Xerogel, 450 DEG C are heated in oxygen atmosphere and is removed Remove organic matter and promote silver nitrate and indium nitrate fully to decompose.Secondly, oxygen atmosphere is converted into hydrogen atmosphere and in 450 DEG C of guarantors Warm 10 hours, now, aeroge forms Ag-In alloys on this condition.After insulation terminates, hydrogen is converted into oxygen atmosphere And temperature is risen to 600 DEG C, it is incubated 10 hours.Finally, one complete, the transparent Ag Quantum Dot Glass of light brown is formed. In order to contrast, it is sintered with the obtained xerogel for comprising only Ag+ of above-mentioned same method with same temperature-rise period, it is different It is exactly the control of atmosphere, after insulation terminates, hydrogen atmosphere is not converted into oxygen atmosphere, but rises to 600 DEG C at 450 DEG C When continue to lead to.Eventually form complete, the Ag Quantum Dot Glass of black non transparent.Finally in glass body material doped with Ag-In2O3Compound, wherein Ag is present with crystalline form, In2O3It is to exist as an amorphous form, according to addition silver nitrate With the amount of indium nitrate, final Ag, In co-doped to glass body material and both account for doping after mol ratio be 0.47%~ 0.7% (theoretical value).
With reference to shown in Fig. 1 to Fig. 3, disclosed by the transmitted spectrum of test sample containing Ag-In2O3The quantum dot of structure Glass only adulterates Ag with sintering under the reducing conditions+The resulting Quantum Dot Glass for comprising only Ag nano particles is compared, transparent Degree substantially increases substantially.The present invention discloses the nanocrystalline things of Ag using micro-structural test and mutually formed in glass.Transmission Electron microscope (TEM) shows, the Ag nano particles that particle size is smaller, is evenly distributed are formd in sodium boron silicon-based glass. Silver nano-grain is doped in clear glass in optical nano label, visible light source, optical storage, third-order non-linear material etc. Aspect has very big latent effect, it is often more important that the application on light limitation material, this material can be than dark ring The eyes of people, optical device are protected not to be injured by laser emission in border.These applications are required for Quantum Dot Glass to have preferably thoroughly Bright property, from the pictorial diagram in figure to some signs, it can be seen that, we form the nano particle of silver in glass, and have very The good transparency, has widened application of the Quantum Dot Glass in photoelectric field to a certain extent.
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art For member, without departing from the technical principles of the invention, some improvement and modification can also be made, above-mentioned hypothesis these Improvement and modification are same to should be regarded as protection scope of the present invention.

Claims (2)

  1. A kind of 1. preparation method for preparing the high transparency Quantum Dot Glass containing silver nano-grain, it is characterised in that:
    The high transparency quantum points out glass in glass body material doped with Ag-In2O3Compound, wherein Ag is with crystalline state shape Formula is present, In2O3To exist as an amorphous form, Ag, In co-doped to glass body material and both account for doping after mol ratio For 0.47%~0.7%, wherein the mol ratio of Ag and In elements is 1: 1;
    The preparation method comprises the following steps:
    1) preparation of xerogel:A, it is made glass colloidal sol, b, is added drop-wise to the ethanol solution respectively containing silver nitrate and indium nitrate In glass colloidal sol, it is sufficiently stirred, formation contains Ag+And In3+Glass, mounted box and place 1 week after, 120 DEG C dry 4 weeks, i.e., Formation contains Ag+And In3+Block xerogel;
    2) sintering process, xerogel is placed in tube furnace and is sintered:A, first, under oxygen atmosphere, temperature is by room temperature liter To 450 DEG C, it is therefore an objective to remove organic matter and silver nitrate and indium nitrate is sufficiently decomposed, b, oxygen atmosphere is converted into hydrogen gas Atmosphere is simultaneously incubated at 450 DEG C, it is therefore an objective to forms Ag-In alloy under reducing atmosphere, c, insulation terminate, hydrogen atmosphere are converted into Oxygen atmosphere, and temperature is risen to 600 DEG C, by adjust oxidization time obtain to the end it is transparent, completely contain Ag nanometers The Quantum Dot Glass of particle.
  2. 2. preparation method according to claim 1, it is characterised in that:Described glass body is sodium boron silicon-based glass, sodium The each component mole of boron silicon-based glass forms:Na2O:5~8mol%, B2O3:21~24 mol%, SiO2:70~ 73mol%.
CN201610217996.0A 2016-04-05 2016-04-05 A kind of high transparency Quantum Dot Glass of silver-containing nanoparticles and preparation method thereof Expired - Fee Related CN105906215B (en)

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CN106950624A (en) * 2017-04-24 2017-07-14 宁波东旭成新材料科技有限公司 A kind of quantum dot light diffusion barrier
CN109437563B (en) * 2018-12-25 2020-06-16 浙江大学 Silver quantum cluster doped blue-green fluorescent glass utilizing zinc-oxygen tetrahedron charge balance and preparation method thereof
CN109437557B (en) * 2018-12-25 2020-06-16 浙江大学 Green-white fluorescent silver quantum cluster doped fluorophosphate glass based on non-bridging oxygen coordination and preparation method thereof
CN109592899B (en) * 2018-12-25 2020-06-16 浙江大学 Visible waveband adjustable fluorescent silver quantum cluster doped inorganic glass with stable boron-oxygen network and preparation method thereof
CN113336436B (en) * 2021-05-18 2022-08-26 杭州电子科技大学 Noble metal sensitized carbon quantum dot glass material for LED and preparation method and application thereof

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