Patent ID: 7645777

Claim:
A switching device exhibiting two stable resistance values to a voltage applied between electrodes, the switching device comprising thin films of a first electrode layer, an organic bistable material layer and a second electrode layer sequentially formed on a substrate, wherein the organic bistable material is a quinone compound represented by the general formula (I): wherein R 1 , R 2 , R 3 , and R 4 , which can be the same or different from each other, and are selected from the group consisting of a hydrogen atom, an alkyl group of carbon number of 1 to 6 that can have one or more substituents, and an aryl group that can have one or more substituents; R 5 and R 6 , which can be the same or different from each other, are selected from the group consisting of a hydrogen atom, an alkyl group of carbon number of 1 to 6 that can have one or more substituents, an aryl group that can have one or more substituents, an alkoxy group, and a halogen atom; “A” represents one of the formulas (A-1) through (A-9) and I represents an integer from 1 to 4.