Naphthalene containing poly(urethane-urea) for volatile memory device applications

Current or voltage controlled electrical switching in organic molecules and polymers is attracting attention due to its potential in organic electronic memory applications. The switching phenomenon under consideration in this article is characterized as a sudden transition from a low to a high conductivity condition at a threshold voltage. For the observed volatile switching phenomenon, the lower conductivity condition is restored as soon as the applied voltage becomes smaller than a holding voltage. This switching phenomenon presents the basic requirements for application in volatile memory devices. In this Communication we report on volatile electrical switching observed in a polyurethane derivative copolymerized with diaminonaphthalene.