High temperature superconducting structures

A superconductor device, comprising:

• a first monolayer of a low-dimensional superconducting material that includes a first graphene nanoribbon with a width and a length, wherein the length of the first graphene nanoribbon is at least an order of magnitude greater than the width thereof, and where the width of the first graphene nanoribbon is less than a superconducting coherence length thereof;
• a second monolayer of the low-dimensional material that includes a second graphene nanoribbon with a width and a length, wherein the length of the second graphene nanoribbon is at least an order of magnitude greater than the width thereof, and where the width of the second graphene nanoribbon is less than a superconducting coherence length thereof,
• wherein each of the first and second graphene nanoribbons is chemically functionalized with a dopant species, where the dopant species includes a first bound moiety affixed to the low-dimensional material and a free moiety removably attached to the first bound moiety;
• and
• a plurality of molecules intercalated between the first graphene nanoribbon and the second graphene nanoribbon,
• wherein the superconductor device has a higher critical temperature than a critical temperature of a bulk form of the low-dimensional superconducting material, for a given operating pressure.