Preparation method and application of a hydrogel-modified highly stable carbon-based holographic disc

A hydrogel, highly stable technology, applied in the recording/reproducing, optical recording/reproducing/erasing method, information storage and other directions, can solve the problems of low diffraction efficiency, slow information storage speed, etc. Low cost, convenient and reliable preparation method

Active Publication Date: 2021-10-01
NORTHEAST NORMAL UNIVERSITY
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Problems solved by technology

In the latest research, it is found that the carbon quantum dot / titanium dioxide composite film not only has bidirectional photochromic properties, but also can improve the stability of information storage, but the current carbon quantum dot / titanium dioxide composite film still has a slow information storage speed, The problem of low diffraction efficiency

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  • Preparation method and application of a hydrogel-modified highly stable carbon-based holographic disc
  • Preparation method and application of a hydrogel-modified highly stable carbon-based holographic disc
  • Preparation method and application of a hydrogel-modified highly stable carbon-based holographic disc

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[0028] In order to understand the above-mentioned purpose, features and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0029] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described here. Therefore, the protection scope of the present invention is not limited by the specific details disclosed below. EXAMPLE LIMITATIONS.

[0030] A method for preparing a hydrogel-modified highly stable carbon-based holographic disc, such as figure 1 ,Specific steps are as follows:

[0031] S1. Preparing a titanium dioxide film on the surface of the disc-shaped glass substrate by screen printing technology, curing the titanium dioxide film, and performing high-temperature annealing on the cured ti...

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Abstract

A preparation method and application of a hydrogel-modified highly stable carbon-based holographic disc relates to the field of information storage technology, and solves the problem of a preparation method for a storage medium with high information storage stability and high diffraction efficiency, including in Prepare a porous titanium dioxide film on a disc-shaped glass substrate; immerse in a carbon quantum dot solution to load the porous titanium dioxide film with carbon quantum dots to obtain a carbon quantum dot / titanium dioxide composite film; immerse in a silver nitrate solution and prepare by irradiating with an ultraviolet lamp Silver / carbon quantum dots / titanium dioxide composite film; a layer of hydrogel is attached by pulling dipping method. The preparation method of the present invention is convenient and reliable, low in cost, and suitable for commercial mass production, and the prepared optical disk has the performance advantages of high stability, high efficiency and high uniformity of information storage, which makes holographic optical storage stand out in the field of future data storage. Possibly, it can be well applied to the field of holographic data storage.

Description

technical field [0001] The invention relates to the field of information storage in the era of big data, in particular to the field of holographic optical storage technology, and in particular to a preparation method and application of a hydrogel-modified highly stable carbon-based holographic disc. Background technique [0002] With the advent of the era of big data, the status of data has become more and more prominent. The United States calls data "the new oil of the future". In such a huge amount of data, 80% of the data is cold data that people do not often use, so the storage of massive cold data is particularly important. Traditional data storage methods including magnetic storage and optical disk storage are facing many difficulties such as energy consumption challenges, security challenges, and storage capacity challenges, which usher in new development opportunities for holographic optical storage. Holographic optical storage stores information by storing the cohe...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G11B7/0065G11B7/08G11B7/1353
CPCG11B7/0065G11B7/083G11B7/1353
Inventor 刘益春王一茜王秀莉李鑫付申成张昕彤
Owner NORTHEAST NORMAL UNIVERSITY
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