光存储因分辨率高、移动性好、价格低廉等优点，成为一种具有巨大发展前景的存储方式。传统的二维光信息存储材料的容量受制于材料本身的物理极限，因此，实现非物理层面多级光信息存储技术是未来新一代光存储技术发展的必然方向。本项目拟以X2SiO4正硅酸盐结构化合物为研究对象，采用改良的固相法开发一系列亚微米粒径、信息光存储性能优良的新型电子俘获型材料。通过“能带工程”，对阳离子置换、修饰以及多种离子合理共掺杂形成对陷阱能级进行有效裁剪和调控，构建多维分立深陷阱并存状态，从而实现不同信息多级可控存储。借助一系列技术手段系统性表征晶体结构、微观形貌、掺杂离子、陷阱分布对信息光存储性能的影响。揭示波长、强度和温度在光信息的写入-读出过程中的量化关系。此外，理论计算与实验表征相结合，深入探讨信息光存储中涉及到的电子动力学过程，完善并构建电子俘获型材料信息光存储机理模型，为未来进一步研究奠定基础。

Due to the advantages of high resolution, easy mobility and low cost, optical data storage has become a storage method with great development prospect. The capacity of traditional two-dimensional optical data storage material is intrinsically limited by the physical limit of the material itself. Therefore, the realization of non-physical multi-level optical storage technology is the inevitable development direction of the new generation of optical storage technology in the future. This project aims to take X2SiO4 ortho-silicate structural compounds as the research object and develop a series of new electron capture materials with submicron particle size and excellent optical information storage performance by the modified solid-state reaction method. Constructing the coexistence state of multi-dimensional discrete deep traps and realizing multi-level controllable optical storage of different information through the "band-band engineering", cationic replacement and modification, and reasonable co-doping by various ions which can tailor and control the energy level of traps. The effects of crystal structure, micro morphology, dopants and trap distribution on the optical storage performance will be systematically characterized by a series of techniques. The quantitative index of wavelength, intensity and temperature in optical information write-in and read-out will be revealed. In addition, we will the combination of theoretical-calculation and experimental-characterization to deeply discuss the electronic dynamics involved in optical information storage, complete and construct the optical information storage mechanism model of electronic capture material, and lay a foundation for further study in the future.