All-printed paper memory

A method of forming a paper-based substrate memory device, comprising:

• coating one or more areas of a paper substrate with a conductor material to form a first electrode of the memory device;
• depositing, with the least one printer, a layer of material to serve as a switching medium over one or more areas of the conductor material;
• depositing, with at least one printer, at least one diode onto the switching medium layer;
• and
• depositing, with the least one printer, a layer of a metal over the at least one diode to form a second electrode of the memory device;
• wherein the conductor material is deposited as a plurality of strips onto the paper substrate, the metal layer is deposited as a plurality of strips over the conductor material at a non-zero angle in relation to the strips of the conductor material to form a plurality of juxtaposed intersections between the strips of the conductor material and the metal layer, the switching medium layer is deposited onto the conductor material between the conductor material and the metal layer within the intersections and a diode is deposited onto the switching medium layer between the switching medium layer and the metal layer strips at each intersection.

A paper-based substrate memory device, comprising:

• a paper substrate coated with a conductor material;
• a layer of material to serve as a switching medium deposited over one or more areas of the conductor material, the switching medium layer having a thickness of more than 40 μm to less than 100 μm;
• at least one diode deposited over an area of the switching medium layer;
• and
• a layer of metal deposited onto the at least one diode,
• wherein the at least one diode is comprised of two different material inks, the material inks having a difference in a fermi level of the material inks.

A method of forming a paper-based substrate memory device, comprising:

• coating one or more areas of a paper substrate with a conductor material to form a first electrode of the memory device;
• depositing, with the least one printer, a layer of material to serve as a switching medium over one or more areas of the conductor material;
• depositing, with at least one printer, at least one diode onto the switching medium layer;
• and
• depositing, with the least one printer, a layer of a metal over the at least one diode to form a second electrode of the memory device;
• wherein the conductor material is deposited as a plurality of strips onto the paper substrate, the metal layer is deposited as a plurality of strips over the conductor material at a non-zero angle in relation to the strips of the conductor material to form a plurality of juxtaposed intersections between the strips of the conductor material and the metal layer, the switching medium layer is deposited onto the conductor material between the conductor material and the metal layer within at least one intersection and a diode is deposited onto the switching medium layer between the switching medium layer and the metal layer strips at the at least one intersection.