▎ 摘　　要

NOVELTY - A micro-LED apparatus comprises substrate, light-emitting device on the substrate, and a set of red emission carbon quantum dots (102) on the light-emitting device. An individual red emission carbon quantum dot, of the set of red emission carbon quantum dots, comprises a single-layer or multi-layer of nitrogen-doped graphene particles. USE - A micro-LED apparatus for use in a system (claimed) that may be incorporated into a wireless device, e.g., cell phone or personal digital assistant. ADVANTAGE - The carbon quantum dots have less defects. The light emission is governed by the energy bands contributed by the nitrogen dopants of specific structures. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for: (1) manufacture of quantum dots which involves applying solvothermal synthesis of a mixture of aromatic amino acid, 3,4-dihydroxy-L-phenylalanine (L-DOPA), and urea in dimethylformamide (DMF), transferring the mixture to a pressure reactor, cooling the pressure reactor to room temperature after a reaction in the pressure reactor, where reaction generates a solution, and purifying the solution via water-immiscible organic solvent and deionized water; and (2) system comprising a processor circuitry to execute instructions, memory coupled to the processor circuitry, where the memory is to store the instructions, and a display communicatively coupled to the processor circuitry, where the display is the micro-LED apparatus. DESCRIPTION OF DRAWING(S) - The drawing shows a cross-sectional diagram of a micro-LED. 101Circuit 102Red emission carbon quantum dots 102-1LED 102-2Color-conversion layer 120Cross-section of micro-LED pixel