Methods of making thin film transistors comprising zinc-oxide-based semiconductor materials and transistors made thereby
First Claim
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1. A method of making a semiconductor thin film, for use in a transistor, comprising a zinc-oxide-based semiconductor, the method comprising depositing a colloidal solution of zinc-oxide-based nanoparticles on a substrate, at a temperature of 300°
- C. or less, wherein the nanoparticles are the reaction product of a mixture of reactants comprising an organozinc precursor compound and a basic ionic compound, wherein the nanoparticles have an average primary particle size in the range of 10 to 150 nm and are colloidally stabilized in the colloidal solution, and wherein the level of inorganic ions in the colloidal solution is below 1 mM and the level of organic compounds, or salts thereof, is below 5 mM.
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Abstract
A thin film transistor comprises a zinc-oxide-containing semiconductor material. Such transistors can further comprise spaced apart first and second contact means or electrodes in contact with said material. Further disclosed is a process for fabricating a thin film transistor device, wherein the substrate temperature is no more than 300° C. during fabrication.
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43 Claims
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1. A method of making a semiconductor thin film, for use in a transistor, comprising a zinc-oxide-based semiconductor, the method comprising depositing a colloidal solution of zinc-oxide-based nanoparticles on a substrate, at a temperature of 300°
- C. or less, wherein the nanoparticles are the reaction product of a mixture of reactants comprising an organozinc precursor compound and a basic ionic compound, wherein the nanoparticles have an average primary particle size in the range of 10 to 150 nm and are colloidally stabilized in the colloidal solution, and wherein the level of inorganic ions in the colloidal solution is below 1 mM and the level of organic compounds, or salts thereof, is below 5 mM.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43)
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