Abstract
Organic bistable devices (OBDs) based on nanocomposites consisting of C60 embedded in the poly(methyl methacrylate) (PMMA) layer were fabricated by using a spin coating method. The current density–voltage (J–V) curves of the Al/C60 embedded in PMMA layer/indium–tin-oxide devices exhibited an electrical bistability with a low-conductivity state, a transition state, and a high-conductivity state. The J–V curves for OBDs containing hybrid C60 and PMMA except a low voltage range were reasonably fitted by using the space-charge-limited current conduction model. The trapped electron densities of the OBDs were attributed to the space charge relative to the internal electric field.
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