A kind of organic field effect transistor material based on oxygen heterofused rings and its synthesis method and application

Abstract

The invention provides an organic field effect transistor material based on oxygen heterocondensed rings, its synthesis method and application. The preparation steps are as follows: react diisopropylamine, tetrahydrofuran, n-butyllithium, thiophene-3-ethyl carboxylate, and trimethyltin chloride, add 1,4-dibromo-2,5-dimethoxy, tetra Triphenylphosphine palladium reacts with anhydrous tetrahydrofuran, adds 1-bromo-4-hexylbenzene, anhydrous tetrahydrofuran, n-butyllithium solution, mixes with dichloromethane, adds boron tribromide solution, reacts with tetrahydrofuran, n-butyl lithium Reaction of butyllithium, trimethyltin chloride solution, and 4,7‑dibromo‑5,6‑difluoro‑2,1,3‑benzothiadiazole, tris(dibenzylideneacetone) dipalladium , Three (o-methylphenyl) phosphorus and anhydrous toluene can be obtained by reacting. The invention provides a series of field effect transistor materials which can realize high electron mobility, low recombination energy and good solubility by selecting different condensed ring units and acceptor units to polymerize.

Description

technical field [0001] The invention relates to the field of field effect transistors, in particular to an organic field effect transistor material based on oxygen heterofused rings and its synthesis method and application. Background technique [0002] Now that people have entered the information age, various electronic devices (such as mobile phones, computers, etc.) can be seen everywhere in our daily life, and field effect transistors are one of the extremely important electronic components. Compared with traditional field-effect-free crystal materials, organic field-effect transistor materials have the advantages of low cost, simple process, easy modification of material energy levels, good solubility, good flexibility and large-area flexible devices, and are more and more popular. s concern. However, the carrier mobility of current organic field effect transistor materials is far behind that of non-field effect transistor materials. How to improve the mobility of cur...

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Problems solved by technology

However, if the molecular rigidity is too strong, the accumulation between molecules will increase, which will reduce the solvent property of the material, which is not conducive to subsequent transformation and application.

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