▎ 摘　　要

NOVELTY - Apparatus (300) for producing graphene comprises: a seed crystal fixed to a support substrate (110) so that the seed crystal faces downwardly from the support substrate about a location; a feedstock injector configured to provide a feedstock; a laser (130) configured to selectively generate a laser beam; and beam shaping optics (140) configured to couple the laser beam to at least a portion of the seed crystal and at least a portion of the feedstock about the location to form a downwardly hanging graphene crystal (120). USE - The apparatus is useful for producing graphene (claimed). ADVANTAGE - The apparatus prevents the formed graphene from raveling, and thus the graphene quality and processing yields are improved. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) a computing device to produce graphene comprising a memory to store instructions, and a processor coupled to the memory, where the processor to execute a methodology in conjunction with the instructions is stored in the memory, and the methodology is adapted through at least one electro-mechanical device to: provide a feedstock adjacent to a seed crystal about a location; configure an electrostatic enclosure to selectively provide an electrostatic field, where the electrostatic field is effective to apply a straightening force to a downwardly hanging graphene crystal; construct a feedstock injector to provide a feedstock adjacent to the seed crystal about the location; configure a laser to generate a laser beam to heat at least a portion of the seed crystal and at least a portion of the feedstock about the location; and configure beam shaping optics to couple the laser beam to at least a portion of the seed crystal and at least a portion of the feedstock about the location to form a downwardly hanging graphene crystal; and (2) a system to produce graphene comprising: a support substrate, at least one feedstock injector configured to provide a feedstock adjacent to a seed crystal, where the seed crystal is fixed to the support substrate so that the seed crystal faces downwardly from the support substrate about a location; at least one laser configured to selectively generate a laser beam; beam shaping optics configured to couple the laser beam to at least a portion of the seed crystal and at least a portion of the feedstock about the location to form a downwardly hanging graphene crystal; an electrostatic enclosure configured to selectively provide an electrostatic field, where the electrostatic field is effective to apply a straightening force to the downwardly hanging graphene crystal; a power supply; and a process unit control logic configured to control operations of the feedstock injectors, the lasers, the beam shaping optics, the electrostatic enclosure, and the power supply. DESCRIPTION OF DRAWING(S) - The figure shows a schematic view of the apparatus. Support substrate (110) Graphene crystal (120) Laser (130) Beam shaping optics (140) Apparatus (300)