Preparation method and application of surface-deformable nano-composite film

Abstract

The invention discloses a preparation method and application of a surface-deformable nano-composite film, relates to the technical field of surface relief periodic structure manufacturing and optical information storage, and solves the problem that noble metal nanoparticles are required to be introduced into a preparation method of a surface-deformable polymer system. The preparation method comprises the steps: preparing a polymer aqueous solution, wherein the polymer has hydroxyl functional groups; preparing a silver nitrate aqueous solution with the concentration of 0.05 mol / L to 0.2 mol / L; mixing the silver nitrate aqueous solution and the polymer aqueous solution according to a volume ratio of 1:0.5-1:4 to obtain an AgNO3 / polymer mixed solution; and dispensing the mixed solution on a glass substrate, and carrying out preheating treatment to obtain the polymer film containing a silver core. The thin film prepared by the preparation method is high in light energy conversion efficiency, and preparation of a surface relief grating and a complex periodic micro / nano structure can be realized; the method can also be used for holographic optical storage, ultra-high-density data storage is achieved through the rotation multiplexing technology, and the storage time is long.

Description

technical field [0001] The invention relates to the technical fields of surface relief periodic structure fabrication and optical information storage, in particular to a preparation method and application of a surface-deformable nanocomposite film. Background technique [0002] The development of science and technology is bringing human beings from the age of information technology to the age of data technology. Data is generated all the time. Therefore, storage technology with high density, high speed, large capacity, low power and long life has become a major demand of society. As a new generation of photonic storage technology, holographic storage is expected to meet the demand for massive data storage, especially cold data storage, in today's information age. Existing organic and inorganic thin films can be applied in the field of holographic storage, but the stability of the holographic grating is poor, and high-density holographic storage cannot be realized, and there ...

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Problems solved by technology

[0004] Noble metal nanoparticles have localized surface plasmon resonance absorption properties, which can efficiently absorb light energy when the excitation light frequency is matched, but how to introduce noble metal nanoparticles into a surface-deformable polymer system has not been reported yet.

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