Quantum dot ink
First Claim
1. A quantum dot ink, comprising a non-polar organic solvent, a surface tension modifier and a hydrophobic quantum dot,wherein the quantum dot ink further comprises a carrier transport material, and phase separation is present between the hydrophobic quantum dot and the carrier transport material;
- a viscosity of the quantum dot ink is from 10 cP to 12 cP, and a surface tension of the quantum dot ink is from 32 dynes/cm to 42 dynes/cm;
a mass percentage of each component in the quantum dot ink is;
5%-15% carrier transport material, 1%-5% surface tension modifier, 2%-20% hydrophobic quantum dot and 60%-92% non-polar organic solvent,the surface tension modifier is an organic acid, an organic ammonia or a mixture thereof.
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Accused Products
Abstract
A quantum dot ink, a manufacturing method thereof and a quantum dot light emitting diode device are provided. The quantum dot ink includes a non-polar organic solvent, a surface tension modifier and a hydrophobic quantum dot, the quantum dot ink further includes a carrier transport material, wherein phase separation is present between the hydrophobic quantum dot and the carrier transport material. After completing ink-jet printing the quantum dot ink, phase separation occurs between the hydrophobic quantum dot and the carrier transport material. Thus, the two-layer structure of a hydrophobic quantum dot layer and a carrier transport material layer is formed through one process. Not only a quantum dot light emitting device is manufactured by the method of ink-jet printing, but also the operation is simplified, and the manufacturing cost of the quantum dot light emitting device is reduced.
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Citations
16 Claims
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1. A quantum dot ink, comprising a non-polar organic solvent, a surface tension modifier and a hydrophobic quantum dot,
wherein the quantum dot ink further comprises a carrier transport material, and phase separation is present between the hydrophobic quantum dot and the carrier transport material; -
a viscosity of the quantum dot ink is from 10 cP to 12 cP, and a surface tension of the quantum dot ink is from 32 dynes/cm to 42 dynes/cm; a mass percentage of each component in the quantum dot ink is;
5%-15% carrier transport material, 1%-5% surface tension modifier, 2%-20% hydrophobic quantum dot and 60%-92% non-polar organic solvent,the surface tension modifier is an organic acid, an organic ammonia or a mixture thereof. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A fabricating method of a quantum dot ink, comprising:
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mixing a hydrophobic quantum dot, a carrier transport material, a surface tension modifier and a non-polar organic solvent to obtain a quantum dot ink; wherein a proportion of each component is adjusted to allow phase separation to happen between the hydrophobic quantum dot and the carrier transport material; a viscosity of the quantum dot ink is from 10 cP to 12 cP, and the surface tension of the quantum dot ink is from 32 dynes/cm to 42 dynes/cm; a mass percentage of each component in the quantum dot ink is;
5%-15% carrier transport material, 1%-5% surface tension modifier, 2%-20% hydrophobic quantum dot and 60%-92% non-polar organic solvent,the surface tension modifier is an organic acid, and organic ammonia or a mixture thereof.
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Specification