Temp. sensitive sensing luminescent material mixed with double rare earth organic complex and preparation process thereof

A technology of organic complexes and luminescent materials, which is applied in the field of double rare earth organic complex doped temperature-sensitive sensing luminescent materials and its preparation, can solve the problems of low efficiency and achieve simple preparation process, low reaction temperature, and fluorescence quantum efficiency. high effect

Inactive Publication Date: 2005-11-09
ZHEJIANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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While it's less efficient, it still has great potential

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  • Temp. sensitive sensing luminescent material mixed with double rare earth organic complex and preparation process thereof
  • Temp. sensitive sensing luminescent material mixed with double rare earth organic complex and preparation process thereof

Examples

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example 1

[0022] 0.5±0.1g of europium oxide and 0.5±0.1g of terbium oxide are respectively dissolved in hydrochloric acid to obtain an acidic rare earth ion solution, and the pH value is adjusted to 0.5-6. In methyltriethoxysilane (1±0.5 mol), trifluoroacetylacetone (0.05±0.05 mol) and triphenylphosphine oxide (0.05±0.05 mol) dissolved in ethanol (5±5 mol) were added. After stirring for 30 minutes, europium ions (0.05±0.05 mol) and terbium ions (0.05±0.05 mol) dissolved in hydrochloric acid were added. After stirring for 30 minutes, add N-(3-(trimethoxysilane)propyl)ethylenediamine (0.05±0.05mol), continue stirring, and after 30 minutes, seal the above mixed solution in a polytetrafluoroethylene beaker, Place it in a furnace for heat treatment at a temperature of 40°C and a holding time of 60 days to form a solid material.

[0023] figure 1 , figure 2 Shown are the fluorescent photos of the temperature-sensitive sensing luminescent material of the present invention at different temp...

example 2

[0025] 0.5±0.1g of europium oxide and 0.5±0.1g of terbium oxide are respectively dissolved in hydrochloric acid to obtain an acidic rare earth ion solution, and the pH value is adjusted to 0.5-6. In methyltriethoxysilane (1±0.5 mol), trifluoroacetylacetone (0.05±0.05 mol) dissolved in propanol (5±5 mol) was added. After stirring for 40 minutes, europium ions (0.05±0.05 mol) and terbium ions (0.05±0.05 mol) dissolved in hydrochloric acid were added. After stirring for 40 minutes, add N-(3-(trimethoxysilane)propyl)ethylenediamine (0.05±0.05mol), continue stirring, and after 40 minutes, seal the above mixed solution in a polytetrafluoroethylene beaker, Place it in a furnace for heat treatment at a temperature of 45°C and a holding time of 60 days to form a solid material.

example 3

[0027] 0.5±0.1g of europium oxide and 0.5±0.1g of terbium oxide are respectively dissolved in nitric acid to obtain an acidic rare earth ion solution, and the pH value is adjusted to 0.5-6. To vinyltriethoxysilane (1±0.5 mol), hexafluoroacetylacetone (0.05±0.05 mol) dissolved in acetone (5±5 mol) was added. After stirring for 60 minutes, europium ions (0.05±0.05 mol) and terbium ions (0.05±0.05 mol) dissolved in hydrochloric acid were added. After stirring for 60 minutes, add methoxydimethylethylaminosilane (0.05±0.05mol) and continue stirring. After 60 minutes, seal the above mixed solution in a polytetrafluoroethylene beaker and place it in a furnace for heat treatment at a temperature of 50 ℃, the holding time is 30 days, and a solid material is formed.

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Abstract

A dual-RE organic match doped temp-sensitive luminescent material used for detecting the low temp (-263-25 deg.C) is proportionally prepared from SiO2, RE ions and organic ligand by sol-gel method, that is, the hydrolysis-polycondensation reaction of organic modified silicone alkoxide precursor to generate SiO2 gel glass while the reaction of RE ions on organic ligand to generate dual-RE organic match.

Description

technical field [0001] The invention relates to a double rare earth organic complex-doped temperature-sensitive sensing luminescent material which can be used for temperature detection in the temperature range of -263°C to 25°C and a preparation method thereof. Background technique [0002] The luminescent materials doped with double rare earth organic complexes have a wide range of applications in optical devices, such as solid-state laser devices, fiber amplifiers, etc., because of their sharp fluorescence emission peaks, high fluorescence efficiency, and strong mechanical and thermal stability. Wait. The substance emits fluorescence of different colors at different temperatures, can be used as a temperature-sensitive sensing luminescent material, and is expected to be applied to various fields such as temperature detectors and thermal probes of optical fiber sensors. Compared with traditional sensors, fiber optic sensors have many advantages, such as: anti-electromagneti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K11/77
Inventor 钱国栋刘妍王智宇邱建荣樊先平洪樟连王民权
Owner ZHEJIANG UNIV
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