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Photochromic material capable of using in blue light storage

A photochromic material, blue light technology, applied in the direction of color-changing fluorescent materials, chemical instruments and methods, etc., can solve the problems of weak information storage point, limited application, unstable coloring state of organic materials, etc., to achieve low preparation cost, storage Long life and stable coloring state

Inactive Publication Date: 2007-08-22
INST OF CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some organic photochromic materials that respond to blue light have been developed, but their further applications are limited due to the unstable coloring state of organic materials and weak information storage points.

Method used

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  • Photochromic material capable of using in blue light storage

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Concentration is 2% molybdic acid aqueous solution and 5% PVP (produced by U.S. Aldrich company, number average molecular weight is 100000, purity 99%) aqueous solution is mixed, mixing ratio is 1: 10, under 15 °, stir 2 hours, will prepare The obtained sol is prepared into a thin film by casting method, that is, the desired material is obtained. The material can undergo obvious photochromic reaction under blue light irradiation, and the absorption spectrum is shown in Figure 1.

Embodiment 2

[0017] 10% MoO 3 Hydrosol with 1% TiO 2 The water sol is mixed, the mixing ratio is 1:3, and then mixed with the PAM aqueous solution with a concentration of 10%, the mixing ratio is 1:5, stirred for 2 hours, and the obtained sol is prepared into a film by casting method to obtain the required material. The material uses 405nm blue light as a recording light source, and obvious information points can be written on the material, so as to achieve the purpose of data storage. See attached picture 2.

Embodiment 3

[0019] 15% WO 3 Hydrosol with a concentration of 10% TiO 2 The water sol was mixed in a mixing ratio of 1:6, and then mixed with a 15% PAA solution in a mixing ratio of 5:1, stirred for 2 hours, and prepared into a thin film by casting the sol to obtain the desired material.

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Abstract

The invention discloses a photochromic material for blue light storage, which is prepared by mixing one or more of 1-30% inorganic aqueous solutions or colloidal sols with 1-20% of organic molecular solution, agitating and making films on clean substrates with the obtained colloidal sol through casting method or rotary coating method.

Description

technical field [0001] The invention relates to a photochromic material that can be used for blue light storage. The material can undergo photochromic reaction under the action of blue light, so as to achieve the purpose of information storage. Background technique [0002] With the advent of the human information age, the amount of human information is increasing exponentially, so the development of ultra-high-density optical information storage materials has become a research hotspot. The density of optical storage can be effectively increased by reducing the diameter of the storage spot on the effective storage area, and since the size of the laser spot is directly related to its wavelength, generally speaking, the shorter the wavelength, the smaller the spot size. The currently used optical storage laser light source is mainly red laser with a wavelength of 650nm, which has been widely used in the current optical disc storage, such as CD, VCD, DVD and so on. In contrast...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K9/00
Inventor 姚建年张光晋王静
Owner INST OF CHEM CHINESE ACAD OF SCI
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