A memory based on nanometer floating gate organic field effect transistor and its preparation method

Abstract

The invention is an organic field effect transistor memory based on small organic molecules, and has a device structure through the integration of a floating gate-tunneling layer. From top to bottom, the entire device is: source-drain electrodes, semiconductor layers, floating gate-tunneling layers, and gate insulating layers, wherein the floating gate layer and the tunneling layer together constitute the charge storage layer. The present invention aims to form a nanostructure through a simple solution suspension coating process, avoiding complex nanotechnology to prepare thin films, and realizing a larger storage window and a switch ratio (10 5 ), has good stability and repeated erasing and writing resistance, realizes optical erasing, is beneficial to information encryption, and is low in cost and can be commercially promoted and produced in a large area.

Description

technical field [0001] The invention belongs to the technical field of semiconductor memory, and in particular relates to a naphthalene ring small molecule nanometer floating gate organic field effect transistor memory and a preparation method thereof. Background technique [0002] With the advent of the era of big data, in the face of massive information processing and storage, it is required to develop large-capacity, high-density, high-speed non-volatile memory. Compared with traditional inorganic semiconductor memory devices, memory based on organic semiconductors has incomparable advantages. Conventional inorganic semiconductors do not have advantages due to the wide range of sources of organic materials, solution processing, low cost, large-area low-temperature preparation, and integration with flexible substrates. Organic field-effect transistors have the advantages of non-destructive reading and easy logic circuit integration, which are suitable for the development ...

AI Technical Summary

Problems solved by technology

[0006] In view of the technical problems existing in the existing organic field effect transistors, the present invention proposes a co-suspension coating of an easily soluble small molecule material with excellent charge trapping ability and a hydrophobic high dielectric constant compound polystyrene (PS) into a A small molecule nano-floating gate organic field-effect transistor memory, which solves the problems of low storage density and complex process of general nano-floating gates, and the manufacturing process is simple and can be precisely controlled, which effectively promotes the application range of small molecule materials in storage

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