Biodegradable resistive memory and its manufacturing method

Abstract

This disclosure discloses a biodegradable resistive memory, comprising a substrate, a first conductive layer, a resistive layer, and a second conductive layer. The substrate is made of a biodegradable material; the first conductive layer is located on one side of the substrate and is made of a polymer resin and a conductive material; the resistive layer is located on the side of the first conductive layer away from the substrate and is made of a polymer resin and nanomaterials, such as nano-silver, nano-zinc, nano-copper, or nano-aluminum; the second conductive layer is located on the side of the resistive layer away from the first conductive layer and is also made of a polymer resin and a conductive material. Therefore, this disclosure, through the use of biodegradable materials, can reduce the environmental impact of resistive memory after disposal.

Claims

1. A biodegradable resistive memory, comprising: A substrate, made of a biodegradable material, wherein the biodegradable material is a biodegradable membrane or biodegradable paper; a first conductive layer, located on one side of the substrate, wherein the first conductive layer is biodegradable and is made of a polymer resin and a first conductive material, wherein the first conductive material is selected from one or more materials selected from the group consisting of activated carbon, graphite, and carbon black; a resistive layer, located on the side of the first conductive layer away from the substrate, wherein the resistive layer is biodegradable and is made of a polymer resin and a nanomaterial, wherein the nanomaterial is nano-silver, nano-zinc, nano-copper, or nano-aluminum; and a second conductive layer, located on the side of the resistive layer away from the first conductive layer, wherein the second conductive layer is biodegradable and is made of a polymer resin and a second conductive material, wherein the second conductive material is selected from one or more materials selected from the group consisting of activated carbon, graphite, and carbon black.

2. The biodegradable resistive memory as described in claim 1, wherein, The second conductive layer is in the shape of a long strip, and there are multiple second conductive layers, which are arranged at intervals on the resistive layer.

3. The biodegradable resistive memory as described in claim 1, wherein, The first conductive layer, the resistive layer, and the second conductive layer are all in the shape of an elongated strip. There are multiple first conductive layers, resistive layers, and second conductive layers, and these first conductive layers are arranged at intervals on the substrate.

4. The biodegradable resistive memory as described in claim 1, wherein, The polymer resin of the first conductive layer is made of polyvinyl acetate, polyacrylate, polyurethane, epoxy resin or alkyd resin.

5. The biodegradable resistive memory as described in claim 4, wherein, The polymer resin of the second conductive layer is made of polyvinyl acetate, polyacrylate, polyurethane, epoxy resin or alkyd resin.

6. A method for manufacturing a biodegradable resistive memory, comprising: Step S1: A first conductive layer is formed on one side of a substrate, the substrate being made of a biodegradable material, such as a biodegradable membrane or biodegradable paper. The first conductive layer is biodegradable and is made of a polymer resin and a first conductive material selected from one or more materials selected from the group consisting of activated carbon, graphite, and carbon black. Step S2: A resistive layer is formed on the side of the first conductive layer away from the substrate. The resistive layer is biodegradable and is made of a polymer resin and a nanomaterial, such as nano-silver, nano-zinc, nano-copper, or nano-aluminum. Step S3: A second conductive layer is formed on the side of the resistive layer away from the first conductive layer. The second conductive layer is biodegradable and is made of a polymer resin and a second conductive material selected from one or more materials selected from the group consisting of activated carbon, graphite, and carbon black.

7. The method for manufacturing a biodegradable resistive memory as described in claim 6, wherein, Between step S1 and step S2, there is a further step A1, in which the nanomaterial is added to alcohol and ball-milled to obtain a slurry; the ball-milled slurry is dried to obtain a powder; the powder is sintered to form a block; the block powder is added to alcohol and ball-milled a second time to obtain a ball-milled slurry; the ball-milled slurry is dried a second time to obtain a dried powder; the dried powder is mixed with a polymer resin to obtain the material of the resistive layer; in step S2, the material of the resistive layer is formed on the side of the first conductive layer away from the substrate, thereby forming the resistive layer.

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