CN1831082A - A kind of direct preparation method of silicon shell type CdTe quantum dot - Google Patents
A kind of direct preparation method of silicon shell type CdTe quantum dot Download PDFInfo
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- CN1831082A CN1831082A CN 200610031486 CN200610031486A CN1831082A CN 1831082 A CN1831082 A CN 1831082A CN 200610031486 CN200610031486 CN 200610031486 CN 200610031486 A CN200610031486 A CN 200610031486A CN 1831082 A CN1831082 A CN 1831082A
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- cadmium
- quantum dot
- silicon
- shell type
- cdte quantum
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- 229910004613 CdTe Inorganic materials 0.000 title claims abstract description 24
- 238000002360 preparation method Methods 0.000 title claims abstract description 21
- 239000002096 quantum dot Substances 0.000 title claims description 35
- 229910052710 silicon Inorganic materials 0.000 title abstract description 34
- 239000010703 silicon Substances 0.000 title abstract description 34
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 title abstract description 33
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims abstract description 27
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 25
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims abstract description 16
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims abstract description 8
- 150000001661 cadmium Chemical class 0.000 claims abstract description 7
- 239000007789 gas Substances 0.000 claims abstract description 7
- 239000002105 nanoparticle Substances 0.000 claims description 13
- 229910052757 nitrogen Inorganic materials 0.000 claims description 12
- 238000010992 reflux Methods 0.000 claims description 11
- WGTYBPLFGIVFAS-UHFFFAOYSA-M tetramethylammonium hydroxide Chemical compound [OH-].C[N+](C)(C)C WGTYBPLFGIVFAS-UHFFFAOYSA-M 0.000 claims description 8
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 6
- YKYOUMDCQGMQQO-UHFFFAOYSA-L cadmium dichloride Chemical compound Cl[Cd]Cl YKYOUMDCQGMQQO-UHFFFAOYSA-L 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- LHQLJMJLROMYRN-UHFFFAOYSA-L cadmium acetate Chemical compound [Cd+2].CC([O-])=O.CC([O-])=O LHQLJMJLROMYRN-UHFFFAOYSA-L 0.000 claims description 3
- QCUOBSQYDGUHHT-UHFFFAOYSA-L cadmium sulfate Chemical compound [Cd+2].[O-]S([O-])(=O)=O QCUOBSQYDGUHHT-UHFFFAOYSA-L 0.000 claims description 3
- KTTSJTVLWUJJMN-UHFFFAOYSA-L cadmium(2+);dichlorate Chemical compound [Cd+2].[O-]Cl(=O)=O.[O-]Cl(=O)=O KTTSJTVLWUJJMN-UHFFFAOYSA-L 0.000 claims description 3
- BJHNOFIZTODKMI-UHFFFAOYSA-L cadmium(2+);diiodate Chemical compound [Cd+2].[O-]I(=O)=O.[O-]I(=O)=O BJHNOFIZTODKMI-UHFFFAOYSA-L 0.000 claims description 3
- PSIBWKDABMPMJN-UHFFFAOYSA-L cadmium(2+);diperchlorate Chemical compound [Cd+2].[O-]Cl(=O)(=O)=O.[O-]Cl(=O)(=O)=O PSIBWKDABMPMJN-UHFFFAOYSA-L 0.000 claims description 3
- AJVCUHHHRPBRHU-UHFFFAOYSA-N cadmium nitric acid Chemical compound [Cd].[N+](=O)(O)[O-] AJVCUHHHRPBRHU-UHFFFAOYSA-N 0.000 claims 1
- 229910000331 cadmium sulfate Inorganic materials 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 12
- -1 oxy hydrogen Chemical compound 0.000 abstract description 7
- 238000011160 research Methods 0.000 abstract description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical group [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 4
- 239000002245 particle Substances 0.000 abstract description 4
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 3
- KPDQZGKJTJRBGU-UHFFFAOYSA-N lumiflavin Chemical compound CN1C=2C=C(C)C(C)=CC=2N=C2C1=NC(=O)NC2=O KPDQZGKJTJRBGU-UHFFFAOYSA-N 0.000 abstract 2
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 abstract 1
- 238000004061 bleaching Methods 0.000 abstract 1
- 229910001873 dinitrogen Inorganic materials 0.000 abstract 1
- 239000001257 hydrogen Substances 0.000 abstract 1
- 229910052739 hydrogen Inorganic materials 0.000 abstract 1
- 238000003384 imaging method Methods 0.000 abstract 1
- 108091008695 photoreceptors Proteins 0.000 abstract 1
- 229910000077 silane Inorganic materials 0.000 abstract 1
- 229910000059 tellane Inorganic materials 0.000 abstract 1
- PORWMNRCUJJQNO-UHFFFAOYSA-N tellurium atom Chemical compound [Te] PORWMNRCUJJQNO-UHFFFAOYSA-N 0.000 abstract 1
- YUYCVXFAYWRXLS-UHFFFAOYSA-N trimethoxysilane Chemical compound CO[SiH](OC)OC YUYCVXFAYWRXLS-UHFFFAOYSA-N 0.000 description 7
- 239000011248 coating agent Substances 0.000 description 5
- 238000000576 coating method Methods 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- UFULAYFCSOUIOV-UHFFFAOYSA-N cysteamine Chemical compound NCCS UFULAYFCSOUIOV-UHFFFAOYSA-N 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 229960003151 mercaptamine Drugs 0.000 description 3
- 102000004169 proteins and genes Human genes 0.000 description 3
- 108090000623 proteins and genes Proteins 0.000 description 3
- 238000002444 silanisation Methods 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- 238000005303 weighing Methods 0.000 description 3
- 229910020366 ClO 4 Inorganic materials 0.000 description 2
- 229910052793 cadmium Inorganic materials 0.000 description 2
- XIEPJMXMMWZAAV-UHFFFAOYSA-N cadmium nitrate Inorganic materials [Cd+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O XIEPJMXMMWZAAV-UHFFFAOYSA-N 0.000 description 2
- 125000003636 chemical group Chemical group 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000007062 hydrolysis Effects 0.000 description 2
- 238000006460 hydrolysis reaction Methods 0.000 description 2
- NMHMNPHRMNGLLB-UHFFFAOYSA-N phloretic acid Chemical compound OC(=O)CCC1=CC=C(O)C=C1 NMHMNPHRMNGLLB-UHFFFAOYSA-N 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- ZMBHCYHQLYEYDV-UHFFFAOYSA-N trioctylphosphine oxide Chemical compound CCCCCCCCP(=O)(CCCCCCCC)CCCCCCCC ZMBHCYHQLYEYDV-UHFFFAOYSA-N 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 1
- SVAVYEPUOUCCCC-UHFFFAOYSA-N O1C=CC=C1.[N] Chemical class O1C=CC=C1.[N] SVAVYEPUOUCCCC-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 230000001588 bifunctional effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000007850 fluorescent dye Substances 0.000 description 1
- 238000007306 functionalization reaction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000006198 methoxylation reaction Methods 0.000 description 1
- ARYZCSRUUPFYMY-UHFFFAOYSA-N methoxysilane Chemical compound CO[SiH3] ARYZCSRUUPFYMY-UHFFFAOYSA-N 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002159 nanocrystal Substances 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical group [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Chemical group 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000004054 semiconductor nanocrystal Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000010189 synthetic method Methods 0.000 description 1
Landscapes
- Silicon Compounds (AREA)
- Luminescent Compositions (AREA)
Abstract
This invention relates to a silicon shell style CdTe quanta point preparation method. The solution is methanol or tetrahydrofuran, cadmium salt and 3-thinness group propyl lumiflavin oxygen group silane are mixed to prepare hydrogen telluride gas under condition of nitrogen gas, then they are heated and back flow and oxy hydrogen four kalium amine is used to adjust solution pH value to alkalescence and go on back flow, so the CdTe quanta point wrapped by silicon shell is directly prepared. The advantage is easy operation, and there is no need of high temperature and other critical conditions, the procedure of MPS and other complex procedures is omitted, the particle disperse capability is good, anti-light bleaching capability is great improved. It has great application prospect in bio-molecular imaging and its tracing, and can be use as a new lighting material, it is widely used in laser, LED, photoreceptor and other research fields.
Description
Technical field
The present invention relates to the preparation of nano material, be specifically related to the preparation of silicon shell type CdTe quantal-point.
Background technology
(Quantum Dots QDs) can be described as semiconductor nanocrystal (Semicondutor Nanocrystal) again to quantum dot, is a kind of by the elementary composition nano particle of II-VI family or III-V family.Compare with traditional organic fluorescent dye, quantum dot has extremely good spectrum property, and is wide as excitation wavelength range, and emission wavelength ranges is narrow, and Stokes shift is big, and fluorescence lifetime is long, is difficult for advantages such as photobleaching, caused people's extensive concern.Particularly water miscible quantum dot has shown extremely wide application prospect in research fields such as biological chemistry, cytobiology, molecular biology.Yet the preparation method of quantum dot is many based on organic synthesis, and what obtain is fat-soluble product, serious obstruction the application of quantum dot in the biological study field.At this problem, the scientific research personnel has launched number of research projects, in numerous solutions, quantum dot is carried out the silanization processes and displays gone out more and more many advantages: (1) is based on surface silicon alkanisation modifying method, can be very convenient, the silicon shell type quantum dot is carried out the connection of chemical groups such as the modification of hydrophilic radical and amino efficiently, and then can be coupled with biomolecules such as DNA, protein, for its Biology Applications has been established solid basis; (2) the surface silicon web frame has greatly stoped entering of oxygen molecule, makes the anti-photobleaching performance of quantum dot significantly improve; (3) the silicon shell can effectively reduce Cd
2+Etc. leaking of heavy metal ion, the biocompatibility of quantum dot is further improved.As people such as Alivisatos (Science, 1998,281 (5385): 2013～2016) prepare the silicon shell type quantum dot fluorescence nano particle that has than high light stability indirectly by the method for using follow-up silanization, promptly at first prepare fat-soluble quantum dot and centrifugal purification, utilize 3-(sulfydryl propyl group) Trimethoxy silane (MPS) trioctylphosphine oxide that it is surperficial (TOPO) to replace then, again solution is adjusted to alkalescence, make methoxy silane hydrolysis and dehydrating condensation, thereby formed the shell that one deck has silica/silicon oxygen alkane on the surface of quantum dot, further can react (as: TSL 8330 etc.) with some bifunctional methoxylation compounds, make its surface be with chemical groups such as amino, finally realized coupled with biomolecules.(Nano Letters such as Schroedter, 2002,2 (12): 1363～1367) at first adopt water synthetic method to prepare the water-soluble quantum dot that pan coating has mercaptoethylamine, add NaOH solution and Virahol then and carry out centrifugal treating, with removing the free mercaptoethylamine, then adopt MPS with the mercaptoethylamine displacement of coordination at particle surface, the one-step hydrolysis of going forward side by side becomes shell, thereby has obtained the silicon shell type quantum dot fluorescence nano particle of stable existence.Although adopt aforesaid method can prepare the quantum dot fluorescence nano particle of silicon shell bag quilt indirectly, but preparation method's complexity, tediously long steps such as the preparation of needs process quantum dot, centrifugally operated, MPS exchange, silanization processing, and multistep is handled and is caused productive rate to reduce, thereby has limited its further development and applied research.Therefore develop a kind of simple to operately, the silicon shell style CdTe quanta point preparation method that productive rate is high then is the gordian technique that silicon shell type quantum dot fluorescence nano particle Application Areas constantly enlarges.
Summary of the invention
The objective of the invention is to deficiency and defective at above-mentioned preparation method, provide a kind of easy and simple to handle, mild condition directly prepares the method for silicon shell type CdTe quantal-point, to solve the problem that indirect technology of preparing exists.
The technical scheme that realizes above-mentioned purpose is:
The direct preparation method of silicon shell type CdTe quantal-point is for feeding high pure nitrogen in methyl alcohol that contains cadmium salt or tetrahydrofuran solution, 3-(sulfydryl propyl group) Trimethoxy silane that adds 0.005～0.05M then feeds by sulfuric acid and Al under logical nitrogen of continuation and stirring condition
2Te
3The H that reaction generates
2Te gas was removed later on nitrogen in 10 minutes, and under 65～70 ℃ condition reflux 8～15 minutes, obtain MPS coordinate CdTe quantum dot; The pH value that adds tetramethylphosphonihydroxide hydroxide amine regulator solution again is 8.0～8.5, continues to reflux 30～40 minutes, promptly obtains the silicon shell type CdTe quantal-point fluorescent nano particle.
Used cadmium salt is: cadmium perchlorate, Cadmium Sulphate, cadmium iodate, cadmium acetate, cadmium chlorate, cadmium nitrate or Cadmium chloride fine powder.The mol ratio of Cd and Te is 1: (0.2～0.4), wherein the volumetric molar concentration of Cd is 1.0～2.5mM, the volume of methyl alcohol or four nitrogen furans is 50～300ml.
Be described in further detail the present invention below:
The direct preparation of silicon shell type CdTe quantal-point comprises the steps:
1, the preparation of CdTe quantum dot
The methyl alcohol or the tetrahydrofuran solution deoxidation that will contain cadmium salt with nitrogen are protected, and add the 3-that concentration is 0.005～0.05M (sulfydryl propyl group) Trimethoxy silane (MPS) then, are continuing to feed sulfuric acid and Al under logical nitrogen and the stirring condition
2Te
3The H that reaction generates
2Te gas was removed nitrogen later in 10 minutes and was begun heating, refluxed 8～15 minutes down in 65～70 ℃, obtained MPS coordinate CdTe quantum dot.
Cadmium salt of the present invention can be selected any in cadmium perchlorate, Cadmium Sulphate, cadmium iodate, cadmium acetate, cadmium chlorate, cadmium nitrate, the Cadmium chloride fine powder for use.
The mol ratio of Cd and Te is 1 among the present invention: (0.2～0.4), wherein the volumetric molar concentration of Cd is 1.0～2.5mM, the volume of methyl alcohol or tetrahydrofuran (THF) is 50～300mL.
2, the formation of surface silicon web frame
With tetramethylphosphonihydroxide hydroxide amine the pH value of above-mentioned solution is adjusted to 8.0～8.5, methoxyl group on the MPS begins to be hydrolyzed to hydroxyl, continue 30～40 minutes original position dehydrating condensations that reflux, thereby form fine and close silicon net, directly obtained the silicon shell type CdTe quantal-point fluorescent nano particle on the quantum dot surface.
The present invention is coordination agent with MPS, under the experiment condition of gentleness, has directly prepared the silicon shell type CdTe quantal-point fluorescent nano particle first, has following advantage:
One: this method experimental installation is simple, processing ease, need not harsh experiment conditions such as High Temperature High Pressure, can directly obtain pan coating has the CdTe quantum dot fluorescence nano particle of silicon shell, complex steps such as MPS exchange have been save, make the preparation method simple and easy to do, and can further be applied to the preparation of the other types quantum dot of silicon shell bag quilt.
Its two: this particle monodispersity is good, and homogeneity is strong, and can be used as a kind of novel uv materials, is applied to research fields such as laser apparatus, photodiode, sensitive materials.
Its three: the existence of surface silicon web frame, improved the anti-photobleaching performance of quantum dot greatly, help carrying out the long-term spike and the observation of protein and other.
Its four: based on surface silicon alkanisation modifying method, rely on the silica shell structure of the quilt that wraps, be expected to convenient, efficiently particle is further processed, make it be with functionalization groups such as amino, carboxyl, phosphate according to demand, thereby for the connection of biomolecules such as protein has brought convenience, for biomedical research provides a kind of effective instrument.
Embodiment
Below the invention will be further described by several specific exampless:
Embodiment one
The preparation of silicon shell type CdTe quantal-point:
Take by weighing Cd (ClO
4)
26H
2O 100mg places three-necked flask, adds 100mL methyl alcohol, feeds high pure nitrogen then, with the oxygen that removes in the solution.In solution, add 0.715mL MPS, under stirring condition, feed the H of prepared fresh
2Te gas is (by the Al of 13.9mg
2Te
3H with 0.5mol/L
2SO
4Reaction generates), stop ventilation afterwards, 65 ℃ of following reflux 10 minutes transfer to 8.0 and continue to reflux 40 minutes with tetramethylammonium hydroxide with reacting liquid pH value, thereby have directly prepared the quantum dot fluorescence nano particle that pan coating has the silicon shell.
Embodiment two
The preparation of silicon shell type CdTe quantal-point:
Take by weighing Cd (AC)
22H
2O 63.5mg places three-necked flask, adds the 100mL tetrahydrofuran (THF), feeds high pure nitrogen then, with the oxygen that removes in the solution.In solution, add 1mL MPS, under stirring condition, feed the H of prepared fresh
2Te gas is (by 15mg Al
2Te
3H with 0.5mol/L
2SO
4Reaction generates), stop ventilation afterwards, 70 ℃ of following reflux 10 minutes transfer to 8.5 and continue to reflux 30 minutes with tetramethylammonium hydroxide with reacting liquid pH value, thereby have directly prepared the quantum dot fluorescence nano particle that pan coating has the silicon shell.
Embodiment three
The preparation of silicon shell type CdTe quantal-point:
Take by weighing Cd (ClO
4)
26H
2O 41.9mg places three-necked flask, adds 100mL methyl alcohol, feeds high pure nitrogen then, with the oxygen that removes in the solution.In solution, add 0.625mL MPS, under stirring condition, feed the H of prepared fresh
2Te gas is (by 4.25mg Al
2Te
3H with 0.5mol/L
2SO
4Reaction generates), stop ventilation afterwards, 65 ℃ of following reflux 12 minutes transfer to 8.0 and continue to reflux 40 minutes with tetramethylammonium hydroxide with reacting liquid pH value, thereby have directly prepared the quantum dot fluorescence nano particle that pan coating has the silicon shell.
According to the method for the invention, can directly prepare the other types quantum dot of silicon shell bag quilt.
Claims (3)
Priority Applications (1)
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| CNB2006100314860A CN100390249C (en) | 2006-04-11 | 2006-04-11 | A kind of direct preparation method of silicon shell type CdTe quantum dot |
Applications Claiming Priority (1)
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|---|---|---|---|
| CNB2006100314860A CN100390249C (en) | 2006-04-11 | 2006-04-11 | A kind of direct preparation method of silicon shell type CdTe quantum dot |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1831082A true CN1831082A (en) | 2006-09-13 |
| CN100390249C CN100390249C (en) | 2008-05-28 |
Family
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|---|---|---|---|
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101333436B (en) * | 2008-08-06 | 2011-03-16 | 湖南大学 | Multi-color optic-encoding siliceous skin nano-rods and method for preparing same |
| CN102339937A (en) * | 2011-09-26 | 2012-02-01 | 南京工业大学 | A kind of white light LED that utilizes quantum dot fluorescent powder to manufacture and preparation method thereof |
| CN101565621B (en) * | 2009-06-04 | 2012-07-25 | 同济大学 | High fluorescence property nanometer composite microsphere and the production method thereof |
| CN103887152A (en) * | 2014-04-04 | 2014-06-25 | 北京理工大学 | Method for doping of different-valence metal ions in semiconductor |
| CN106188544A (en) * | 2016-07-28 | 2016-12-07 | 浙江欧仁新材料有限公司 | A kind of the macromolecule organic silicon carbon coated quantum dot and its preparation method and application |
| CN106336513A (en) * | 2016-07-28 | 2017-01-18 | 浙江欧仁新材料有限公司 | Macromolecular organosilicon coated carbon quantum dots, and preparation method and application thereof |
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| CN1389539A (en) * | 2002-06-18 | 2003-01-08 | 高明远 | Prepn. and application of nano particle, nano microballoon and biological fuorescent probe |
| CN1173998C (en) * | 2002-08-10 | 2004-11-03 | 吉林大学 | Preparation method of CdTe nanocrystalline transparent polymer bulk material with high visible luminous efficiency |
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| CA2579812A1 (en) * | 2004-09-22 | 2006-03-30 | Japan Science And Technology Agency | Water-soluble fluorescent material and method for producing same |
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2006
- 2006-04-11 CN CNB2006100314860A patent/CN100390249C/en not_active Expired - Fee Related
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| CN101333436B (en) * | 2008-08-06 | 2011-03-16 | 湖南大学 | Multi-color optic-encoding siliceous skin nano-rods and method for preparing same |
| CN101565621B (en) * | 2009-06-04 | 2012-07-25 | 同济大学 | High fluorescence property nanometer composite microsphere and the production method thereof |
| CN102339937A (en) * | 2011-09-26 | 2012-02-01 | 南京工业大学 | A kind of white light LED that utilizes quantum dot fluorescent powder to manufacture and preparation method thereof |
| CN102339937B (en) * | 2011-09-26 | 2013-06-12 | 南京工业大学 | White light LED manufactured by quantum dot fluorescent powder and preparation method thereof |
| CN103887152A (en) * | 2014-04-04 | 2014-06-25 | 北京理工大学 | Method for doping of different-valence metal ions in semiconductor |
| CN103887152B (en) * | 2014-04-04 | 2016-06-08 | 北京理工大学 | A kind of method of aliovalent metal ion mixing in semi-conductor |
| CN106188544A (en) * | 2016-07-28 | 2016-12-07 | 浙江欧仁新材料有限公司 | A kind of the macromolecule organic silicon carbon coated quantum dot and its preparation method and application |
| CN106336513A (en) * | 2016-07-28 | 2017-01-18 | 浙江欧仁新材料有限公司 | Macromolecular organosilicon coated carbon quantum dots, and preparation method and application thereof |
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| CN100390249C (en) | 2008-05-28 |
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