A bismuth molybdate-based transparent ferroelectric luminescent film and its preparation method

A light-emitting film, bismuth molybdate technology, applied in the direction of light-emitting materials, chemical instruments and methods, to achieve the effect of good photoluminescence characteristics

CN105419796BActive Publication Date: 2017-09-22LINGNAN NORMAL UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2017-09-22

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Abstract

The invention belongs to the field of functional film materials and specifically discloses a bismuth-molybdate-based transparent ferroelectric light-emitting film and a preparation method thereof. The chemical composition of the bismuth-molybdate-based transparent ferroelectric light-emitting film is (Bi<2-x>Ln<x>)MoO<6>, Wherein Bi<2>MoO<6> is the base material, Ln is one of rare earth elements, namely Eu, Pr, Er, Tm or Yb, and x in the formula is greater than 0 and less than or equal to 0.50. The bismuth-molybdate-based transparent ferroelectric light-emitting film maintains the ferroelectric properties of a bismuth-molybdate film, the good photoluminescence characteristic is achieved, and the film can be excited by ultraviolet light or 980 nm lasers to emit visible light which is visible to naked eyes; the preparation method of the bismuth-molybdate-based transparent ferroelectric light-emitting film is simple and easy to implement, and no vacuum equipment is needed.
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Description

technical field

[0001] The invention relates to the field of functional thin film materials, in particular to a bismuth molybdate-based transparent ferroelectric luminescent thin film and a preparation method thereof. Background technique

[0002] Ferroelectric thin film is a thin film material made of ferroelectric bulk material into nanometer thickness, which has the physical properties of ferroelectric bulk material, such as ferroelectric properties, dielectric properties, piezoelectric properties, pyroelectric properties, etc. It has good application value in the fields of microelectronic devices, micromachines, sensors and so on.

[0003] Ferroelectric luminescent thin film is a ferroelectric thin film with both ferroelectric and photoluminescent properties, which has important application value in the field of micro-nano optoelectronic materials and devices.

[0004] At present, the ferroelectric luminescent thin films that have been researched and developed include r...

Examples

Embodiment 1

[0035] The present embodiment provides a kind of bismuth molybdate-based transparent ferroelectric luminescent thin film, and its chemical composition is (Bi 1.90 Eu 0.10 ) MoO 6 , the above-mentioned ferroelectric luminescence thin film is prepared according to the following steps:

[0036] S1. Weigh 0.9785g molybdenum acetylacetonate C 10 h 14 MoO 6 Dissolve in ethylene glycol, heat to 50°C, stir for 2 hours, and cool down to room temperature to obtain precursor solution A;

[0037] S2. take by weighing 2.7651g bismuth nitrate Bi (NO 3 ) 3 ·5H 2 O, 0.1338g europium nitrate Eu(NO 3 ) 3 ·6H 2 O, dissolved in a mixture of ethylene glycol methyl ether and glacial acetic acid with a volume ratio of 2:1, adding 1.2013g of stabilizer acetylacetone C 5 h 8 o 2 , to obtain precursor solution B;

[0038] S3. Mix the precursor solutions A and B, stir for 2 hours, and age for 24 hours to obtain the precursor solution C, and adjust the solution concentration to 0.10 mol / L; ...

Embodiment 2

[0042] The present embodiment provides a kind of bismuth molybdate-based transparent ferroelectric luminescent thin film, and its chemical composition is (Bi 1.85 Eu 0.15 ) MoO 6 , the above-mentioned ferroelectric luminescence thin film is prepared according to the following steps:

[0043] S1. Weigh molybdenum acetylacetonate C 10 h 14 MoO 6 : 0.9785g was dissolved in ethylene glycol, heated to 50°C, stirred for 2 hours, and cooled to room temperature to obtain precursor solution A;

[0044] S2. Weigh bismuth nitrate Bi(NO 3 ) 3 ·5H 2 O: 2.6923g, europium nitrate Eu(NO 3 ) 3 ·6H 2 O: 0.2007g, dissolved in a mixture of ethylene glycol methyl ether and glacial acetic acid with a volume ratio of 2:1, adding stabilizer acetylacetone C 5 h 8 o 2 : 1.2013g to obtain precursor solution B;

[0045] S3. Mix the precursor solutions A and B, stir for 2 hours, and age for 24 hours to obtain the precursor solution C, and adjust the solution concentration to 0.10 mol / L;

[00...

Embodiment 3

[0049] The present embodiment provides a kind of bismuth molybdate-based transparent ferroelectric luminescent thin film, and its chemical composition is (Bi 1.80 Eu 0.20 ) MoO 6 , the above-mentioned ferroelectric luminescence thin film is prepared according to the following steps:

[0050] S1. Weigh molybdenum acetylacetonate C 10 h 14 MoO 6 : 0.9785g was dissolved in ethylene glycol, heated to 50°C, stirred for 2 hours, and cooled to room temperature to obtain precursor solution A;

[0051] S2. Weigh bismuth nitrate Bi(NO 3 ) 3 ·5H 2 O: 2.6195g, europium nitrate Eu(NO 3 ) 3 ·6H 2 O: 0.2676g, dissolved in a mixture of ethylene glycol methyl ether and glacial acetic acid with a volume ratio of 2:1, adding stabilizer acetylacetone C 5 h 8 o 2 : 1.2013g to obtain precursor solution B;

[0052] S3. Mix the precursor solutions A and B, stir for 2 hours, and age for 24 hours to obtain the precursor solution C, and adjust the solution concentration to 0.10 mol / L;

[...