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Charging and Discharging Mechanisms of Organic Bistable Devices Based on ZnO Nanoparticles Capped with a Poly N-Vinylcarbazole Polymer

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Abstract:

Scanning electron microscopy and energy-dispersive spectrometer images of hybrid nanocomposites of ZnO nanoparticles capped with a poly N-vinylcarbazole (PVK) that was fabricated using the spin-coating technique showed that the ZnO nanoparticles were capped with a PVK polymer layer. The measurement of the current–voltage (IV) of the Al/ZnO nanoparticles capped with a PVK layer/indium-tin-oxide/glass devices at 300 K showed electrical bistability and negative differential resistance, which indicate the nonvolatile nature of the memory effect of the electron captured in the ZnO nanoparticles. The charging and discharging mechanisms of the organic bistable devices that were fabricated using hybrid nanocomposites of ZnO nanoparticles capped with a PVK layer are described based on the IV results.

Keywords: CHARGING AND DISCHARGING MECHANISMS; ELECTRICAL PROPERTIES; MEMORY EFFECT; NONVOLATILE MEMORY DEVICES; POLY N-VINYLCARBAZOLE

Document Type: Research Article

DOI: https://doi.org/10.1166/jnn.2011.3171

Publication date: 2011-01-01

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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