光电耦合忆阻器集图像探测、存储、处理功能于一体，是构筑新型图形处理器（GPU）的一种重要备选方案。本项目针对目前光电忆阻器光波长响应单一、难以实现三维图像探测/存储的困难，提出基于“等离激元诱导电荷分离（PICS）”效应，构筑可多波长响应、兼具忆阻功能与三维全息光存储功能的信息存储材料与器件。设计并制备金属纳米颗粒@氧化物（nano-M@MOx）复合材料，实现其微结构和光电特性的调控；揭示复合材料中“光子—等离激元—离子—电子”的耦合机制，研究“光致离子化”过程对光存储性能和忆阻行为的影响；通过调控等离激元的光谱特性和nano-M@MOx薄膜的微结构特性，重点解决光电忆阻器的光波长分辨能力和使役稳定性等关键科学问题。构筑光电忆阻器crossbar阵列，实现对全息光学“条纹”的存储；探索利用忆阻器模式识别改善图像识别效率和精度的方法，拓展光电忆阻器在光电逻辑运算、光电神经突触方面的应用。

Optoelectronic memristor, which integrates image acquisition, storage and processing functions, is one of the important candidates to build future graphics processing unit (GPU). However, at this stage, there are the problem of single-wavelength response and the difficulty of three-dimensional (3D) image detection/storage in the optoelectronic memristors. Aiming at these shortages, this project proposes to develop some optoelectronic information storage materials based on the “plasmon-induced charge separation (PICS)” effect, thus realizing the combination of memristor-based storage and 3D holographic optical storage into the same material with multi-wavelength response. A series of metal-nanoparticles/metal-oxide composites (nano-M@MOx) will be designed and fabricated, and their microstructural and optoelectronic characteristics will be tailored. We will reveal the “photon-plasmon-ion-electron” coupling mechanism in the composite films, and study the influence of “photo-induced ionization” process on the optical storage properties and memristive behaviors. By controlling the spectral characteristics of plasma resonances and the microstructure of nano-M@MOx composite films, we will focus on resolving some key scientific problems, such as wavelength resolution and operational stability of optoelectronic memristors. We will attempt to record the holographic interference fringes in a crossbar array of optoelectronic memristor, and improve the speed and accuracy of image recognition by utilizing the pattern recognition function of the memristor array, and also extend the applications of optoelectronic memristors into the logical operation and artificial synapse.