Micro-LED apparatus with a series of carbon-based light-emitting materials and manufacturing method for adjusting emission colors
AssigneeOregon State University
InventorsLi-Jing Cheng, Ye Liu
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Abstract
Disclosed herein are materials and a micro-LED display with carbon-based light-emitting materials, carbon quantum dots, that are made by a solvothermal synthesis of a mixture of aromatic amino acid, 3,4-dihydroxy-L-phenylalanine (LDOPA), and urea in dimethylformamide (DMF). The mixture is heated in a sealed pressure reactor at a temperature, ranging from 120 degrees Celsius to 350 degrees Celsius, for 4-24 hours. The product is then purified to collect the solid powder. The purified CDs can be dissolved in an acrylate monomer solution or a polymer solution for material delivery and curing process on a target substrate for the applications, including light-emitting devices or sensors.
Claims12
An apparatus comprising:
- a substrate;
- a light-emitting device on the substrate;
- and
- a plurality of red emission carbon quantum dots on the light-emitting device, wherein an individual red emission carbon quantum dot, of the plurality of red emission carbon quantum dots, comprises a single-layer or multi-layer of nitrogen-doped graphene particles.
A system comprising:
- a processor circuitry to execute instructions;
- a memory coupled to the processor circuitry, wherein the memory is to store the instructions;
- and
- a display communicatively coupled to the processor circuitry, wherein the display includes:
- a substrate;
- a light-emitting device on the substrate;
- and
- a plurality of red emission carbon quantum dots on the light-emitting device, wherein an individual red emission carbon quantum dot, of the plurality of red emission carbon quantum dots, comprises a single-layer or multi-layer of nitrogen-doped graphene particles.
Dependencies are inferred from the claim text.