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Bromide antimonate novel luminescent material, luminescent thin film and preparation method thereof

A technology of bromide antimonate and luminescent materials, which is applied in the fields of benzyl-substituted pyridinium pentabromoantimonate, bromide antimonate new luminescent materials, and luminescent thin films, which can solve the problem of non-cost-effective, non-rich earth , limit potential applications and other issues, and achieve the effects of facilitating industrialization, less solvent consumption, and easy operation

Active Publication Date: 2021-06-15
SOUTH CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, most highly efficient phosphorescent complexes are based on iridium or platinum, which are neither earth-abundant nor cost-effective, and their preparation often involves multiple steps of synthesis, which limits their use in practical devices. potential application of

Method used

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  • Bromide antimonate novel luminescent material, luminescent thin film and preparation method thereof
  • Bromide antimonate novel luminescent material, luminescent thin film and preparation method thereof
  • Bromide antimonate novel luminescent material, luminescent thin film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A new luminescent material for brombidebenzylpyridine salt, prepared by the following steps:

[0033] (1) Take 0.02 mol of benzy bromide and 0.02 mol of pyridine in a 100 ml conical bottle, 35 ml of methanol is dissolved, and the mixture was stirred at 70 ° C for 20 h, and the solution was rotated at 45 ° C to evaporate the solvent to obtain a viscous yellow liquid, ie Bromide benzylpyridine salt [bzpy] br.

[0034] (2) Take 1mmol SB 2 O 3 In the beaker, 10 ml of hydrobromic acid was dissolved, and then 2 mmol [bzpy] BR was added, stirred at 110 ° C for 1 h, and the clear solution, naturally volatilized for two weeks, produced yellow crystals, ie gobromochloride Benzpyridine salt [bzpy] 2 [SBBR 5 ]; The yield is 77.8%.

[0035] Infrared spectroscopy, IR (cm) -1 : (C-H): 3117, 3048, ν (C = C): 1626, 1577, 1484, ν (CH 2 : 1453, ν (C-N): 1287, 1206, 1157.

[0036] Solid ultraviolet absorption spectroscopy detection of the resulting material, see Figure 5 However, the absorptio...

Embodiment 2

[0040] A pentabrominated benzyl-4-aminopyridine salt, new luminescent material, which is prepared by the following steps:

[0041] (1) Take 0.02 mol of bromide and 0.02 mol of 4-aminopyridine in a 100 ml tapered bottle, 30 ml of methanol is added, and the mixture is stirred at 60 ° C for 20 h, and the solution is rotated at 45 ° C to evaporate the solvent to obtain a viscous yellow liquid.即 基 基 4-aminopyridine salt [BZ-4-NH 2 Py] br.

[0042] (2) Take 1mmol SB 2 O 3 In the beaker, 1 ml of hydrobromic acid is dissolved, placed in a 100 mL tapered bottle, add 2 mmol [BZ-4-NH 2 PY] BR, add 30 mL of methanol, stirred back through 1 h at 60 ° C, filtration, recovery powder, put the obtained filtrate into the small beaker, naturally volatilized for two weeks, produce yellow crystals, ie gobromo-like acid Benzyl 4-aminopyridine quaternary ammonium salt [BZ-4-NH 2 PY] 2 [SBBR 5 ]; Yield is 85.6%.

[0043] Infrared spectroscopy, IR (cm) -1 : ν (C-H): 3050, ν (C = C): 1646, 1529, ν (CH 2 : 14...

Embodiment 3

[0051] Example 1 5 bromodic acid benzylpyridine salt new luminescent materials were applied to the light-emitting film, including the following steps:

[0052] It is called 0.8 g of polycycloalkylene (PEO) dissolved in 10 g of acetonitrile, and is placed at 70 ° C for 70 ° C by a magnetic stirrer. It is called 0.3 g of a pentabromide benzylpyridine salt, a new luminescent material is dissolved in 1 g. Acetonitrile; two solutions were mixed under a constant temperature of 70 ° C to completely dissolve, closing heating, slowly stirring at room temperature to defoaming until a uniform spinning solution was formed. The configured spinning solution is injected into a 10 mL syringe and spinning with an electrostatic spinning machine. Spinning parameters: speed of 2.0ml / h; pinpage collector 9 cm; voltage is 18 kV; the speed of collecting the drum is 236% per minute; the spinning time is 8 hours; the ambient temperature is 25 ° C; the relative humidity is 50%. Finally, a light-emitting ...

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Abstract

The invention belongs to the technical field of functional materials, and in particular relates to a novel luminescent material of brominated antimonate, namely pentabromoantimonate benzyl-substituted pyridinium salt, which is a compound composed of pentabromantimony anion and benzyl-substituted pyridine cation, and its preparation The method includes the following steps: (1) placing a certain amount of benzyl bromide and substituted pyridine salt in a container, adding a solvent to dissolve, heating for reaction, and then concentrating and drying to obtain an oily substance; (2) adding a certain amount of Sb 2 O 3 Dissolve in hydrobromic acid, add a certain amount of oil obtained in step 1, heat to react, then filter, and concentrate the obtained filtrate to obtain crystals. The brominated antimonate novel luminescent material and the luminescent film of the present invention exhibit a good orange-red fluorescence effect under the irradiation of 365 nm ultraviolet light, and are optical materials with excellent performance. The preparation method of the invention has the advantages of simple operation, high yield, cost saving, wide application range and favorable industrialization promotion.

Description

Technical field [0001] The present invention belongs to the technical field of functional materials, and more particularly to a pyridic acid salt of bromide, ie pentabromide benzyl substituted pyridine salt, and a preparation method thereof and a light-emitting film prepared therewith. Background technique [0002] Luminous materials are one of the important components of today's social life. It has been widely used in the fields of energy, information, environmental and healthcare technology. Over time, a variety of types of luminescent materials have been developed, including organic and polymer emitters, transition metal complexes, rare earth doped phosphors, nanocrystals, and organic-inorganic hybrid calcium. The phosphorescent metal complex serves as one of the most important luminescent materials, which has achieved great success in an organic light emitting diode with nearly 100% internal quantum efficiency. However, mostly highly efficient phosphorescent complexes are bin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D213/06C09K11/06C09K11/02C09K11/75D01F6/94D01F1/10D04H1/728
CPCC09K11/025C09K11/06C09K11/755C09K2211/1029D01F1/10D01F6/94D04H1/728
Inventor 倪春林张静刘维陈丛丛徐奕琳陈克来
Owner SOUTH CHINA AGRI UNIV
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