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Up-conversion luminescence reversible control material and preparation method based on photochromic effect

A photochromic and effect technology, applied in the direction of luminescent materials, chemical instruments and methods, etc., can solve the problems such as the performance is not too ideal

Active Publication Date: 2022-03-11
CIVIL AVIATION UNIV OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing inorganic photochromic materials are relatively few, and their performance is not ideal, especially there are fewer materials that can achieve reversible regulation of upconversion luminescence based on the photochromic effect.

Method used

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  • Up-conversion luminescence reversible control material and preparation method based on photochromic effect
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  • Up-conversion luminescence reversible control material and preparation method based on photochromic effect

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Experimental program
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Effect test

Embodiment 1

[0040] The upper conversion luminescence reversible regulatory material provided in this embodiment is SRBI 3.9-x HO x YB 0.1 Ti 4 O 15 Ceramic material, where x = 0.005, the preparation method is as follows:

[0041] Electronic balance of 0.0001 grams was used to weigh 0.8947 grams of carbonate (99%), 5.497 g of bismuth (99%), 0.1183 g of oxide (99.9%), 1.9362 g of titanium oxide (99%), 0.0057 grams of oxidation (99.9%), in a clean agate can, anhydrous ethanol (99.7%) of the can body was 2 / 3, and then placed in the planetary ball mill for 24 hours. The product was removed from the cannas can, placed in a glass beaker, drying with an oven, after grinding, placing the product into a rigory 坩 坩, put the box furnace, continuously warming up to 1050 ° C, 5 hours, cool down to 550 ° C. The resulting product obtained after the furnace was subjected to a agate mortar, and the adhesive polyvinyl butylaldate (PVB, 0.5% weight ratio was 0.5%), sufficiently ground, mixed uniform, and granula...

Embodiment 2

[0043] The upper conversion luminescence reversible regulatory material provided in this embodiment is SRBI 3.9-x HO x YB 0.1 Ti 4 O 15 Ceramic material, X = 0.02, the preparation method thereof is as follows:

[0044] Electronic balance of 0.0001 grams was used to measure 0.8947 grams of barbonate (99%), 5.4786 g of bismuth (99%), 0.1183 g of oxide (99.9%), 1.9362 g of titanium oxide (99%), 0.0227 grams of oxidation (99.9%), in a clean agate can, anhydrous ethanol (99.7%) of the can body was 2 / 3, and then placed in the planetary ball mill for 24 hours. The product was removed from the cannas can, placed in a glass beaker, drying with an oven, after grinding, placing the product into a rigory 坩 坩, put the box furnace, continuously warming up to 1050 ° C, 5 hours, cool down to 550 ° C. The product obtained after the furnace was subjected to a agate mortar, and the binder PVB was added (0.5% from the product weight ratio), sufficiently ground, mixed uniform, and granulated. A cerami...

Embodiment 3

[0046] The upper conversion luminescence reversible regulatory material provided in this embodiment is SRBI 3.9-x HO x YB 0.1 Ti 4 O 15 Ceramic material, where x = 0.05, its preparation method is as follows:

[0047] Electronic balance of 0.0001 grams of precision was used to weigh 0.8947 grams of carbonate (99%), 5.4362 g of bismuth (99%), 0.1183 grams of oxide (99.9%), 1.9362 g of titanium oxide (99%), 0.0567 grams of oxidation (99.9%), in a clean agate can, anhydrous ethanol (99.7%) of the can body was 2 / 3, and then placed in the planetary ball mill for 24 hours. The product was removed from the cannas can, placed in a glass beaker, drying with an oven, after grinding, placing the product into a rigory 坩 坩, put the box furnace, continuously warming up to 1050 ° C, 5 hours, cool down to 550 ° C. The product obtained after the furnace was subjected to a agate mortar, and the binder PVB was added (0.5% from the product weight ratio), sufficiently ground, mixed uniform, and granula...

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Abstract

A reversible control material for upconversion luminescence based on photochromic effect and a preparation method thereof. The chemical formula of the material is SrBi 3.9‑ x Ho x Yb 0.1 Ti 4 o 15 , where x=0.005, 0.02, 0.05 or 0.1. The preparation method is based on SrCO 3 、 Bi 2 o 3 , Yb 2 o 3 、Ho 2 o 3 and TiO 2 As a raw material, mix and grind in proportion, and then use a simple high-temperature solid-state reaction method to prepare SrBi 3.9‑ x Ho x Yb 0.1 Ti 4 o 15 Ceramic material. The invention has the advantages that under the irradiation of near-ultraviolet light, the material exhibits obvious discoloration, and at the same time, the up-conversion luminous intensity of the material also changes accordingly. At the same time, under thermal stimulation, the discoloration can be restored to the state before irradiation, and the up-conversion luminescence of the material also returns to the initial state. Under the alternating action of near-ultraviolet irradiation and thermal stimulation, the upconversion luminescence of the material exhibits excellent reversible controllability and rapid response, which indicates that the material can be used in the fields of optical switches, optical storage, security and anti-counterfeiting in the future.

Description

Technical field [0001] The present invention belongs to the technical field of converting the luminescent material on the rare earth basal, and in particular, there is a method of disconnecting an reversible regulatory material and a preparation method based on a photointed effect. Background technique [0002] At present, up-converted luminescent materials with reversible light regulation capabilities have a wide range of application prospects due to their data storage, optical switches, scribble paper, and multi-color displays. Photocromochromism is usually an reversible process, thus trying to use this process to regulate the light-emitting performance of certain materials. So far, researchers have focused on photochameral materials, such as sulfoxide, dibrene derivatives, 腙 compounds, Stanhouse compounds, o-nitricenzyl derivatives. However, most organic materials are poorly thermally stable and toxic to the environment, so they limit their applications. Compared to organic ph...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/475C04B35/622C04B35/626C04B35/638C09K11/77
CPCC04B35/475C04B35/622C04B35/62695C04B35/638C09K11/7769C04B2235/3213C04B2235/3224C04B2235/6567C04B2235/9646
Inventor 魏通杨丰铭申灵慧
Owner CIVIL AVIATION UNIV OF CHINA
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