▎ 摘　　要

NOVELTY - Applied device (100) comprises metal electrodes, electrons located between metal electrodes (120) and including graphene, having an asymmetrical geometry (111) back and forth between an electron transport control layer (110) that hydrodynamically controls the electron transport flow therebetween based on the asymmetric geometry. The electron transport control layer comprises at least one shielding material including hexagonal boron nitride (hBN), Molybdenum oxide (MoOX), HfO2 and Al2O3, having a Van Der Waals heterostructure of the graphene and the at least one shielding material. USE - The applied device is useful for controlling hydrodynamic electron transport based on geometrical properties of graphene. ADVANTAGE - The device controls the flow of electrons hydrodynamically transported by using the graphene geometry, can control the hydrodynamic electron transport phenomenon of graphene using the device geometry and enables the development of graphene-based applied devices without changing the excellent intrinsic properties of graphene, can promote the development of graphene-based flexible solar cells, transparent solar cells, cryogenic solar cells, photodetectors, etc. by maximizing the photocurrent of graphene due to the geometrical structure, preserves excellent properties of graphene without changing the intrinsic physical properties of graphene, improves photoreactivity and efficiency of the applied device by inducing an asymmetric flow of optically excited electrons and holes using the graphene geometry and can control the charge density of a device through an electrical gating method using a semiconductor and an insulating substrate. DESCRIPTION OF DRAWING(S) - The drawing shows a view for explaining an applied device for controlling hydrodynamic electron transport based on the geometrical properties of graphene. Applied device (100) Electron transport control layer (110) Asymmetrical geometry (111) Metal electrodes (120)