Method for simulating linear and nonlinear electrical properties of random silver nanowire network

Abstract

The invention discloses a method for simulating linear and nonlinear electrical properties of a random silver nanowire network. The method comprises the following steps: step 1, constructing a randomsilver nanowire network microcosmic model; 2, describing the microcosmic model by utilizing a graph theory idea and a double-node model to obtain directed graph matrix representation of the microcosmic model; 3, judging the connectivity of the nanowire network according to a connectivity algorithm of the graph; 4, abstracting the nanowire network directed graph into an electric network model by adopting an equivalent circuit method / electric network theory; and step 5, performing electrical simulation and analysis on the nanowire network circuit model by means of an HSPICE circuit simulation tool. According to the method, under the condition that the topological structure of the random silver nanowire network is kept unchanged, the resistance circuit model and the resistance-memristor hybrid circuit model are freely converted, accurate simulation of linear and nonlinear electrical behaviors of the same random silver nanowire network is achieved, and design and optimization of the randomsilver nanowire network in practical application can be guided.

Description

technical field [0001] The invention relates to the fields of transparent conductive films, conductive composite materials, flexible sensing, non-volatile storage, neuromorphic systems and other fields based on the application of random silver nanowire networks, and specifically relates to a linear and nonlinear electrical system of random silver nanowire networks property simulation method. Background technique [0002] Random silver nanowire networks with good mechanical bending, tensile stability, low cost, and adaptable to mass production have attracted widespread attention in conductive composites, transparent conductive films, flexible sensing, non-volatile Storage, neuromorphic systems and other fields have very broad application prospects. [0003] The method for synthesizing silver nanowires in large quantities is generally the polyol method. However, the silver nanowires prepared by the polyol method have a polymer (polyvinylpyrrolidone, PVP) insulating layer abo...

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Problems solved by technology

[0006] For example, the complex nonlinear devices and circuits in the random silver nanowire network cannot be well handled; the corresponding relationship between the voltage and current of the random silver nanowire network cannot be accurately simulated; it is difficult to perform various circuits on the same random silver nanowire network. Analysis mode; insufficient precision for random silver nanowire network simulations

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