Photochromic material capable of using in blue light storage

A technology of photochromic materials and blue light, applied in the direction of color-changing fluorescent materials, chemical instruments and methods, etc., can solve the problems of unstable coloring state of organic materials, limited application, weak information storage points, etc., and achieve stable coloring state and preparation. The effect of low cost and simple operation

Inactive Publication Date: 2006-07-12
INST OF CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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
  • 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 the appendix figure 1 .

Embodiment 2

[0017] Concentration is that the MoO3 water sol of 10% is mixed with the TiO2 water sol that concentration is 1%, mixing ratio 1: 3, is then mixed with the PAM aqueous solution that concentration is 10%, mixing ratio is 1: 5, stirs 2 hours, will The prepared sol is prepared into a thin film by casting method, that is, the desired material is obtained. 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 figure 2 .

Embodiment 3

[0019] Concentration is that 15% WO3 water sol is mixed with concentration is 10% TiO2 water sol, mixing ratio 1: 6, and then is mixed with the PAA solution that concentration is 15%, mixing ratio 5: 1, stirs 2 hours, will make The sol casting method is used to prepare a thin film, that is, 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 Applications(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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