Bioorganic nanodots for non-volatile memory devices

In recent years we are witnessing an intensive integration of bio-organic nanomaterials in electronic devices. Here we show that the diphenylalanine bio-molecule can self-assemble into tiny peptide nanodots (PNDs) of ∼2 nm size, and can be embedded into metal-oxide-semiconductor devices as charge st...

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Bibliographic Details
Published in:APL materials 2013-12, Vol.1 (6), p.062104-062104-6
Main Authors: Amdursky, Nadav, Shalev, Gil, Handelman, Amir, Litsyn, Simon, Natan, Amir, Roizin, Yakov, Rosenwaks, Yossi, Szwarcman, Daniel, Rosenman, Gil
Format: Article
Language:English
Subjects:
CRYSTALS
ELECTRON MICROSCOPY
ELECTRONIC EQUIPMENT
FABRICATION
MATERIALS SCIENCE
MEMORY DEVICES
PEPTIDES
QUANTUM DOTS
SEMICONDUCTOR DEVICES
SILICA
SILICON OXIDES
VOLATILITY
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Summary:In recent years we are witnessing an intensive integration of bio-organic nanomaterials in electronic devices. Here we show that the diphenylalanine bio-molecule can self-assemble into tiny peptide nanodots (PNDs) of ∼2 nm size, and can be embedded into metal-oxide-semiconductor devices as charge storage nanounits in non-volatile memory. For that purpose, we first directly observe the crystallinity of a single PND by electron microscopy. We use these nanocrystalline PNDs units for the formation of a dense monolayer on SiO2 surface, and study the electron/hole trapping mechanisms and charge retention ability of the monolayer, followed by fabrication of PND-based memory cell device.
ISSN:2166-532X
2166-532X
DOI:10.1063/1.4838815