1. A method of fabricating a molecular electronic device comprising at least one pair of crossed wires and a molecular switch film therebetween, said method comprising: (a) forming at least one bottom electrode on a substrate by first forming a first layer on said substrate and patterning said first layer by an imprinting technique to form said bottom electrode; (b) forming said molecular switch film on top of said bottom electrode; (c) optionally forming a protective layer on top of said molecular switch film to avoid damage thereto during further processing; (d) coating a polymer layer on top of said protective layer and patterning said polymer layer by said imprinting method to form openings that expose portions of said protective layer; and (e) forming at least one top electrode on said protective layer through said openings in said polymer layer by first forming a second layer on said polymer layer and patterning said second layer to form said top electrode.