The invention discloses a preparation method of sliver /
titanium dioxide film materials used for blue-
ray holographic storage, and belongs to the field of optical
information storage material preparation. The preparation method comprises the following steps: preparing a
titanium dioxide film,
tannin acid solution of which the pH (Potential Of
Hydrogen) value is 8.5,
silver nitrate solution and a
titanium dioxide film attached with
tannin acid, obtaining a sliver /
titanium dioxide film with a water bath heating method, and carrying out a spectrum test and
holographic storage on the sliver /
titanium dioxide film. According to the preparation method, the
tannin acid is used as reductant to obtain the sliver /
titanium dioxide film materials. Through the detection of an absorption spectrum, compared with a traditional preparation method, the preparation method has the advantages of strong adsorption at a position of short wave and narrow absorption peak and is suitable for the
holographic storage of short-wave light. The observation of a
kinetic curve of
holographic grating growth proves that the efficient and quick holographic storage of short-
wavelength blue
ray can be realized by the sliver / titanium dioxide film materials prepared with the preparation method.