A cds/tio 2 Thin film and its preparation method and application

Abstract

A CDs / TiO 2 Thin film and its preparation method and application involve CDs / TiO 2 In the field of thin film technology, the problems of poor preparation methods and poor light polarization sensitivity of carbon-based titanium dioxide composite films have been solved. The films include glass substrates, TiO deposited on glass substrates 2 Nanoporous layer, adsorbed on TiO 2 Carbon dots on nanoporous layers or deposited on TiO 2 Carbon dot layer on nanoporous layer. The method involves depositing TiO on glass substrates by dip-pulling 2 Nanoporous layer, preparation of carbon dot solution, preparation of adsorption on TiO by soaking in carbon dot solution 2 Carbon dots on nanoporous layer or drop coating to prepare carbon dot layer. Thin films can have applications in holographic storage, indicating the wavelength of light, or indicating the polarization state of light. The film of the present invention has light polarization sensitivity and is stronger than the traditional carbon-based titanium dioxide composite film, has high flatness and good transparency effect; the preparation method is simple and low in cost, and CDs / TiO with better quality can be obtained 2 film.

Description

technical field [0001] The present invention relates to CDs / TiO 2 The field of thin film technology, specifically related to a CDs / TiO 2 Thin films and their methods of preparation and applications. Background technique [0002] Advanced information processing technologies, such as information encryption and high-density optical storage, are one of the core topics in the era of big data. It can effectively deal with data expansion caused by the development of the Internet, cloud computing, and massive secure storage. The existing carbon-based structure composite film, that is, graphene oxide (GO) and porous titanium dioxide composite film with freely dispersed two-dimensional structure, can realize holographic storage, but GO / TiO 2 Composite films are not polarization-sensitive, and cannot achieve high-density holographic storage of polarization dimensions, and cannot further cope with the problems brought about by the era of big data. Compared with the lamellar structur...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that the traditional carbon-based titanium dioxide composite film cannot realize the multiplexing storage of the polarization dimension, filling CDs / TiO 2 Thin films fill research gaps, CDs / TiO 2 The problem of poor flatness and poor transparency of the film, in order to solve the problem of CDs / TiO 2 There are insufficient problems in the thin film preparation method, in order to solve the problem of CDs / TiO 2 The problem of thin film application range is small, the present invention provides a kind of CDs / TiO 2 Thin film and its preparation method and application

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