▎ 摘　　要

NOVELTY - Constructing graphene/fullerene/graphene all-carbon molecular device comprises e.g. constructing MCBJ component, sucking fullerene solution into liquid pool, applying certain bias voltage to the two ends of an electrode, starting push rod driving chip to bend, the graphene/fullerene/graphene full-carbon molecular device is generated, the ejector rod below the chip moves downwards under the action of the driving force of the stepping motor, and the substrate is driven to bend downwards, the graphene electrode is driven to stretch towards the inner side, forming nano gap, and tunneling current is generated, the motion of the ejector rod is converted to be controlled by the piezoelectric ceramics, when the tunneling conductance reaches the set upper limit, the ejector rod moves upwards in the moving direction, the gap of the electrode is continuously increased, and the tunneling current is also reduced accordingly. USE - The method is useful for constructing graphene/fullerene/graphene all-carbon molecular device. DETAILED DESCRIPTION - Constructing graphene/fullerene/graphene all-carbon molecular device comprises (1) constructing MCBJ component, where the MCBJ component comprises two graphene electrodes and a liquid pool, the two graphene electrodes are located in the liquid pool or below the liquid pool, (2) sucking the fullerene solution into a liquid pool, so that the graphene electrode is immersed in the solution, and (3) applying certain bias voltage to the two ends of an electrode, starting push rod driving chip to bend, the graphene/fullerene/graphene full-carbon molecular device is generated, the ejector rod below the chip moves downwards under the action of the driving force of the stepping motor, and the substrate is driven to bend downwards, the graphene electrode is driven to stretch towards the inner side, forming nano gap, and tunneling current is generated for the two electrodes, and at the moment, the motion of the ejector rod is converted to be controlled by the piezoelectric ceramics, when the tunneling conductance reaches the set upper limit, the ejector rod moves upwards in the moving direction, the gap of the electrode is continuously increased, and the tunneling current is also reduced accordingly, and when the gap is increased to a distance matched with the fullerene molecule, the distance between the electrode and the fullerene molecule is increased, the graphene electrode is used for capturing fullerene molecules, and the graphene/fullerene/graphene molecular knot is constructed.