Method for producing organic electronic devices on deposited dielectric materials
First Claim
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1. A method for fabricating an organic electronic device comprising:
- depositing a dielectric material over a substrate;
plasma treating the dielectric material; and
depositing an organic semiconductor film over the plasma treated dielectric material, wherein plasma treating the dielectric material comprises utilizing a gas selected from the group consisting of Nitrogen (N2) and Argon (Ar), and wherein plasma treating the dielectric material comprises placing the substrate in a reactor chamber maintained in a range 200 to 500 mTorr, and flowing the gas at a rate in the range of 100-200 sccm.
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Abstract
A deposited dielectric (e.g., PECVD silicon nitride) formed on an inexpensive glass or plastic foil substrate is modified to facilitate the formation of high mobility organic semiconductor films. In one embodiment, the dielectric is plasma treated using nitrogen or argon gas to reduce the surface roughness of the dielectric layer below 5 nm (peak-to-valley). An organic semiconductor film (e.g., pentacene) grown on the modified dielectric exhibits high mobility and large polycrystalline grain sizes.
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Citations
17 Claims
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1. A method for fabricating an organic electronic device comprising:
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depositing a dielectric material over a substrate;
plasma treating the dielectric material; and
depositing an organic semiconductor film over the plasma treated dielectric material, wherein plasma treating the dielectric material comprises utilizing a gas selected from the group consisting of Nitrogen (N2) and Argon (Ar), and wherein plasma treating the dielectric material comprises placing the substrate in a reactor chamber maintained in a range 200 to 500 mTorr, and flowing the gas at a rate in the range of 100-200 sccm. - View Dependent Claims (2, 3, 4, 6, 7, 8)
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5. A method for fabricating an organic electronic device comprising:
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depositing a dielectric material over a substrate;
plasma treating the dielectric material; and
depositing an organic semiconductor film over the plasma treated dielectric material, wherein plasma treating the dielectric material comprises utilizing a gas selected from the group consisting of Nitrogen (N2) and Argon (Ar), and wherein plasma treating further comprises sustaining a plasma until the dielectric material has a peak-to-valley surface roughness of less than 5 nm.
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9. A method for fabricating an organic electronic device comprising:
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depositing a dielectric material over a substrate;
plasma treating the dielectric material; and
depositing an organic semiconductor film over the plasma treated dielectric material, wherein plasma treating comprises sustaining a plasma until the dielectric material has a peak-to-valley surface roughness of less than 5 nm. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17)
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Specification