Preparation method of a force-electricity-light conversion enhanced luminescent composite film

A composite film, light conversion technology, applied in chemical instruments and methods, luminescent materials, filament/wire forming, etc., can solve the problems of weak fluorescence emission and limited force, and achieve enhanced luminous intensity, enhanced interaction force, environmental protection, etc. Stability-enhancing effect

Active Publication Date: 2019-05-03
NANJING TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] (3), the force that the elastic stress luminescent material prepared in the prior art can withstand is limited;
[0007] (4) The problem that the stress luminescent material cannot be continuously distributed in the organic matrix and the force it receives is weak, and the fluorescent light is weak

Method used

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  • Preparation method of a force-electricity-light conversion enhanced luminescent composite film
  • Preparation method of a force-electricity-light conversion enhanced luminescent composite film
  • Preparation method of a force-electricity-light conversion enhanced luminescent composite film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] A method for preparing a force-electricity-light conversion enhanced luminescent composite film, the specific steps are as follows:

[0054] (1) 0.5mol / L of Sr(NO 3 ) 2 and Al(NO 3 ) 3 , 0.02mol / L of Eu(NO 3 ) 3 and Dy(NO 3 ) 3 Stoichiometric ratio Sr 0.97 Al 2 o 4 :Eu 2+ 0.01 , Dy 3+ 0.02 (abbreviated as SAOE) into the beaker and stir evenly, add precipitant urea, dispersant ethylene glycol, surfactant CTAB for ultrasonic dispersion, and transfer the ultrasonically dispersed solution into a stainless steel reaction kettle with polytetrafluoroethylene at 145 Under the temperature condition of ℃, carry out hydrothermal reaction, centrifuge and dry after reacting for 24 hours to obtain the precursor powder;

[0055] (2) Put the precursor powder into the 2 In a tube furnace with a reducing atmosphere of 5% argon by volume, the tube furnace operates at 5°C min -1 Burn at 1300°C for 4 hours at a heating rate to obtain spherical Sr 0.97 Al 2 o 4 :Eu 2+ 0....

Embodiment 2

[0062] A method for preparing a force-electricity-light conversion enhanced luminescent composite film, the specific steps are as follows:

[0063] (1) 0.5mol / L of Sr(NO 3 ) 2 and Al(NO 3 ) 3 , 0.02mol / L of Eu(NO 3 ) 3 and Dy(NO 3 ) 3 Stoichiometric ratio Sr 0.97 Al 2 o 4 :Eu 2+ 0.01 , Dy 3+ 0.02 (abbreviated as SAOE) into the beaker and stir evenly, add precipitant urea, dispersant ethylene glycol, surfactant CTAB for ultrasonic dispersion, and transfer the ultrasonically dispersed solution into a stainless steel reaction kettle with polytetrafluoroethylene at 145 Under the temperature condition of ℃, carry out the hydrothermal reaction, and react for 24 hours, centrifuge and dry to obtain the precursor powder;

[0064] (2) Put the precursor powder into the 2 In a tube furnace with a reducing atmosphere of 5% argon by volume, the tube furnace operates at 5°C min -1Burn at 1300°C for 4 hours at a heating rate to obtain spherical Sr 0.97 al 2 o 4 :Eu 2+ 0.0...

Embodiment 3

[0069] A method for preparing a force-electricity-light conversion enhanced luminescent composite film, the specific steps are as follows:

[0070] (1) Burn 0.5mol / L of Sr(NO 3 ) 2 and Al(NO 3 ) 3 , 0.02mol / L of Eu(NO 3 ) 3 and Dy(NO 3 ) 3 Stoichiometric ratio Sr 0.97 al 2 o 4 :Eu 2+ 0.01 , Dy 3+ 0.02 (abbreviated as SAOE) into the beaker and stir evenly, add the combustion agent triethylamine, put the ultrasonically dispersed solution into the muffle furnace and heat it to 300 ° C for 40 minutes, and then continue to burn in the muffle furnace at 700 ° C Under oxidation treatment for 3 hours, the precursor powder was obtained;

[0071] (2) Put the precursor powder into the 2 In a tube furnace with a reducing atmosphere of 5% argon by volume, the tube furnace operates at 5°C min -1 Burn at 1300°C for 4 hours at a heating rate to obtain flaky Sr 0.97 al 2 o 4 :Eu 2+ 0.01 , Dy 3+ 0.02 (abbreviated as SAOED);

[0072] (3) Add 0.01g / mL ethanol solution of d...

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Abstract

The invention relates to a method for preparing a force-electric-light conversion enhanced luminescent composite film, which belongs to the technical field of material physics. Firstly, the elastic stress luminescent materials with different shapes are prepared, and the surface is modified and dispersed in the piezoelectric organic matrix, and finally the composite thin film is prepared. The invention controls the anisotropy of the growth morphology and enhances the micro-nano stress luminescent material of the flexible electricity and photoelectric effect; uses the organic piezoelectric material as the matrix to improve the flexibility; It forms a core-shell structure to improve the compatibility of inorganic matter and organic matrix, and improves the luminous intensity. The electrospinning method is used to prepare a highly oriented composite fiber film, which enhances the mechanical strength of the composite material and improves the luminous intensity.

Description

technical field [0001] The invention belongs to the technical field of material physics, and more specifically relates to a method for preparing a force-electricity-light conversion enhanced luminescent composite thin film. Background technique [0002] In recent years, with the development of new elastic stress luminescent materials, the improvement of stress luminescence efficiency and the improvement of detection technology sensitivity requirements, as well as the application of elastic stress luminescence in biological imaging, stress luminescence materials are used in stress damage detection. , stress distribution image visualization, biosensing and bioimaging have attracted worldwide attention. [0003] SrAl currently developed and publicly available 2 o 4 :Eu 2+ (Dy 3+ ,Nd 3+ ), ZnS:Mn 2+ , Ca 2 al 2 SiO 7 : Ce 3+ , BaTiO 3 -CaTiO 3 :Pr 3+ and SrMg 2 (PO 4 ) 2 :Eu 2+ etc. In order to realize the practical application of elastic stress luminescent mate...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L27/16C08K9/04C08K7/18C08J5/18C08K7/00C09K11/02C09K11/64D04H1/728D01D5/00
CPCC09K11/025C09K11/7792D01D5/0015D04H1/728C08K5/18C08K7/00C08K7/18C08K9/04C08K9/08C08J2327/16C08L27/16
Inventor 黄程张珊珊黄维
Owner NANJING TECH UNIV
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