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Preparation of illuminant color adjustable tricolor organic-inorganic silicon-based hybrid material

A technology of luminous color and three primary colors, which is applied in the direction of luminescent materials, chemical instruments and methods, etc., can solve the problems such as the difficulty of hybrid materials, and achieve the effects of regular microscopic morphology, good reproducibility, and strong operability

Inactive Publication Date: 2010-06-02
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, after years of research, the preparation route based on the modification of aromatic derivative molecules with carboxyl or amino groups has been studied thoroughly. If you still want to conduct deeper and wider research on this basis or obtain better properties Hybrid materials are more difficult

Method used

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  • Preparation of illuminant color adjustable tricolor organic-inorganic silicon-based hybrid material
  • Preparation of illuminant color adjustable tricolor organic-inorganic silicon-based hybrid material
  • Preparation of illuminant color adjustable tricolor organic-inorganic silicon-based hybrid material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Dissolve 1 mmol of α-hydroxypyridine in 10 ml of DMF, add to a three-necked flask and heat to reflux. Then a solution of 0.8 mmol triethoxysilylisocyanopropyl isocyanate dissolved in 10 ml DMF was added dropwise. After the dropwise addition, the entire solution was refluxed at 80° C. for 6 h under the protection of nitrogen, cooled, and the solvent was distilled off under reduced pressure to obtain a light yellow oily liquid. The resulting oily silicone precursor was dissolved in DMF, and then ethyl orthosilicate and europium nitrate were added. The ratio of organic silicon precursor, ethyl orthosilicate and europium nitrate is 3:6:1. The pH value of the solution was adjusted to 1, and the hydrolysis polycondensation reaction was carried out at 20° C. for 5 hours until a solid gel was formed. The obtained solid gel was transferred to an oven for aging treatment, the temperature was controlled at 60° C., and the aging time was 10 days to finally obtain an organic-inorg...

Embodiment 2

[0027] Dissolve 1 mmol of α-hydroxypyridine in 10 ml of DMF, add to a three-necked flask and heat to reflux. A solution of 10 ml of DMF dissolved with 1 mmol of triethoxysilylisocyanate was then added dropwise. After the dropwise addition, the entire solution was refluxed at 90° C. for 8 h under the protection of nitrogen, cooled, and the solvent was distilled off under reduced pressure to obtain a light yellow oily liquid. The resulting oily silicone precursor was dissolved in DMF, and then ethyl orthosilicate and terbium nitrate were added. The material ratio of the organosilicon precursor, tetraethyl orthosilicate and terbium nitrate is 3:6:1. The pH value of the solution was adjusted to 2, and the hydrolysis and polycondensation reaction was carried out at a temperature of 30° C. for 8 hours until a solid gel was formed. The obtained solid gel was transferred to an oven for aging treatment, the temperature was controlled at 70° C., and the aging time was 20 days to final...

Embodiment 3

[0029] Dissolve 1 mmol of α-hydroxypyridine in 10 ml of DMF, add to a three-necked flask and heat to reflux. Then a solution of 1.2 mmol of triethoxysilylisocyanopropyl triethoxypropyl isocyanate dissolved in 10 ml of DMF was added dropwise. After the dropwise addition, the entire solution was refluxed at 100° C. for 10 h under the protection of nitrogen, cooled, and the solvent was distilled off under reduced pressure to obtain a light yellow oily liquid. The resulting oily silicone precursor was dissolved in DMF, and then ethyl orthosilicate and zinc acetate were added. The material ratio of the organosilicon precursor, tetraethyl orthosilicate and zinc acetate is 2:4:1. The pH value of the solution was adjusted to 3, and the hydrolysis and polycondensation reaction was carried out at a temperature of 40°C for 10 hours until a solid gel was formed. The obtained solid gel was transferred to an oven for aging treatment, the temperature was controlled at 80° C., and the aging...

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Abstract

The invention belongs to the technical field for preparing rare earth luminescent material, which particularly relates to a process for preparing three primary colors inorganic-organic hybridized rareearth luminescent material whose illuminant colors can be adjusted. The process for preparation comprises the following specific steps: modifying the structure of aromatic derivation molecule with hydroxyl group, and leading in a specific coupling molecule, grafting inorganic molecule in Si-O organic network through a covalent bond and through further doing hydrolytic polycondensation with inorganic substrate, and finally getting inorganic-organic rare earth luminescent material. The process for preparation has mild preparation condition, which brings convenience for manufacturing and processing inorganic-organic hybridized material, lowers production cost, and can achieve energy band regulation through molecular design regulation. Different metal ions (europium ion, terbium ion and zincion) are respectively doped in the same silicon-based hybridized substrate, and three primary colors inorganic-organic hybridized rare earth luminescent materials which emit red color, green color andblue color are respectively prepared. Luminescent material which is finally got has the advantages of excellent thermal stability, high luminous efficiency and the like, therefore, the method has potential application value in the aspect of preparing illuminating material and ultra-thin plane display material.

Description

technical field [0001] The invention belongs to the technical field of preparation of rare earth luminescent materials, and in particular relates to a preparation method of a three-color organic-inorganic silicon-based hybrid material with adjustable luminous color. Background technique [0002] Introducing rare earth complexes into the matrix to form organic-inorganic hybrid materials has become the direction that researchers have been focusing on in recent years. There have been related literature reports at home and abroad, and some results have been commercially applied. In life fluorescent probes, planar Liquid crystal display, high-efficiency laser and other fields have great potential application value. Recent studies have focused on the silanization of organic ligands to obtain organic-inorganic hybrid materials in which the inorganic components and organic components are connected by Si-C bonds through co-hydrolysis and polycondensation reactions. Subsequent researc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K11/00
Inventor 闫冰钱凯
Owner TONGJI UNIV
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