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A kind of preparation method of erbium-doped barium calcium zirconate titanate flexible light emitting film

A technology of barium calcium zirconate titanate and light-emitting thin film, applied in the field of fluorescent and ferroelectric materials, can solve the problems of low decomposition temperature, infeasible growth of ferroelectric thin films, etc. The effect of high temperature

Active Publication Date: 2020-10-02
FUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although commonly used organic substrates have superior flexibility, their decomposition temperature is low, while the growth temperature of general ferroelectric thin films is relatively high (the growth temperature of barium calcium zirconate titanate is 650-800 ℃), so in this kind of organic flexible substrate It is also not feasible when growing ferroelectric thin films on-chip

Method used

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  • A kind of preparation method of erbium-doped barium calcium zirconate titanate flexible light emitting film
  • A kind of preparation method of erbium-doped barium calcium zirconate titanate flexible light emitting film
  • A kind of preparation method of erbium-doped barium calcium zirconate titanate flexible light emitting film

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Experimental program
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Embodiment 1

[0033] A method for preparing an erbium-doped barium calcium zirconate titanate flexible luminescent film, comprising the following steps:

[0034] 1) Preparation of xEr-BCTZ sol

[0035] a, according to the chemical formula xEr-(Ba 0.85 Ca 0.15 )(Ti 0.9 Zr 0.1 )O 3 The stoichiometric ratio of elements in (xEr-BCTZ) Weigh raw materials barium acetate, calcium acetate, erbium nitrate, and dissolve in the mixed solvent of glacial acetic acid and ethylene glycol methyl ether, the volume ratio of glacial acetic acid and ethylene glycol methyl ether Be 1:1, obtain solution A; Wherein x=0 mol%;

[0036] b. Weigh tetrabutyl titanate and zirconium n-propoxide according to the stoichiometric ratio, and add acetylacetone as a chelating agent, wherein the molar ratio of tetrabutyl titanate to acetylacetone is 1:2 to obtain solution B;

[0037] c. Mix solutions A and B, add an appropriate amount of glacial acetic acid to the desired concentration, and stir for a period of time to ob...

Embodiment 2

[0045] A method for preparing an erbium-doped barium calcium zirconate titanate flexible luminescent film, comprising the following steps:

[0046] 1) Preparation of xEr-BCTZ sol

[0047] a, according to the chemical formula xEr-(Ba 0.85 Ca 0.15 )(Ti 0.9 Zr 0.1 )O 3 The stoichiometric ratio of elements in (xEr-BCTZ) Weigh raw materials barium acetate, calcium acetate, erbium nitrate, and dissolve in the mixed solvent of glacial acetic acid and ethylene glycol methyl ether, the volume ratio of glacial acetic acid and ethylene glycol methyl ether Be 1:1, obtain solution A; Wherein x=0.5 mol%;

[0048] b. Weigh tetrabutyl titanate and zirconium n-propoxide according to the stoichiometric ratio, and add acetylacetone as a chelating agent, wherein the molar ratio of tetrabutyl titanate to acetylacetone is 1:2 to obtain solution B;

[0049] c. Mix solutions A and B, add an appropriate amount of glacial acetic acid to the desired concentration, and stir for a period of time to ...

Embodiment 3

[0057] A method for preparing an erbium-doped barium calcium zirconate titanate flexible luminescent film, comprising the following steps:

[0058] 1) Preparation of sol

[0059] 1) Preparation of xEr-BCTZ sol:

[0060] a, according to the chemical formula xEr-(Ba 0.85 Ca 0.15 )(Ti 0.9 Zr 0.1 )O 3 The stoichiometric ratio of elements in (xEr-BCTZ) Weigh raw materials barium acetate, calcium acetate, erbium nitrate, and dissolve in the mixed solvent of glacial acetic acid and ethylene glycol methyl ether, the volume ratio of glacial acetic acid and ethylene glycol methyl ether Be 1:1, obtain solution A; x=1 mol%;

[0061] b. Weigh tetrabutyl titanate and zirconium n-propoxide according to the stoichiometric ratio, and add acetylacetone as a chelating agent, wherein the molar ratio of tetrabutyl titanate to acetylacetone is 1:2 to obtain solution B;

[0062] c. Mix solutions A and B, add an appropriate amount of glacial acetic acid to the desired concentration, and stir f...

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Abstract

The invention discloses a preparation method of an erbium-doped barium calcium zirconate titanate flexible light-emitting film. The preparation method comprises the following steps: 1) an erbium-dopedbarium calcium zirconate titanate sol is prepared, and the process comprises classifying and dissoving raw materials, wherein the solvent volume ratio of glacial acetic acid to ethylene glycol monomethyl ether is 1:1, and the molar ratio of a titanium source to a chelating agent acetylacetone is 1:2; and 2) a bendable inorganic light-emitting ferroelectric film with certain bending strength is prepared on flexible mica by adopting a spin-coating annealing method on each layer of film, and the preparing process comprises three steps of spin coating, heat treatment and annealing. According to the invention, the erbium-doped barium calcium zirconate titanate film material is prepared on an ultrathin flexible mica substrate, so that the erbium-doped barium calcium zirconate titanate film material has an optical-electric multifunctional characteristic and is endowed with good bending resistance. In addition, the spin-coating method adopted by the preparation method is relatively low in technical cost, is simple and convenient to operate, and is expected to be applied to batch production of high-quality miniature wearable intelligent equipment.

Description

technical field [0001] The invention relates to the field of fluorescent and ferroelectric materials, in particular to a preparation method of an erbium-doped barium calcium zirconate titanate flexible light emitting film. Background technique [0002] Barium calcium zirconate titanate (BCTZ) is an environmentally friendly lead-free piezoelectric material with a perovskite structure, which integrates ferroelectric, dielectric, and piezoelectric properties, and can be widely used in electronics and manufacturing industries. The BCTZ phase structure is located near the quasi-isomorphic phase boundary (MPB) at room temperature, and can achieve two-phase or three-phase coexistence, thereby obtaining high-performance piezoelectric materials. In 2009, Ren Xiaobing reported that BCTZ ceramics have an ultrahigh piezoelectric coefficient (d33 = 620 pC / N), which is comparable to lead-containing lead zirconate titanate (PZT) ceramics, which attracted strong attention. In addition, rar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/49C04B35/622
CPCC04B35/49C04B35/62222C04B2235/443C04B2235/48C04B2235/95C04B2235/9646
Inventor 吴啸徐洁周阳林枞符华风
Owner FUZHOU UNIV