Journal of Nanoscience and Nanotechnology · 2007 · 18 citations · 0 references
Natural SciencesMaterials EngineeringMaterials ScienceNanomaterialsNanotechnologyThin FilmsInorganic NanoparticlesMemory DevicesMetal Oxide NanomaterialsNanocompositesOxide SemiconductorsSemiconductor NanomaterialsBistabilityCharge Transport MechanismsCurrent-voltage RelationsCurrent-voltage RelationshipNanoparticlesRandom-access MemoryTransport MechanismsZinc Oxide Nanostructures
The article reports observed electrical bistability in thin films of ZnO nanoparticles embedded in an insulating polymer matrix. From the current-voltage and impedance characteristics, they studied transport mechanisms involved in the two conducting-states. The electrical bistability in such films has been associated with a memory phenomenon. The bistability, which is reversible in nature, led to read-only and random-access memory applications in the devices based on such nanoparticles.