Nanoscale memory characterization of virus-templated semiconducting quantum dots.

Portney, Nathaniel G; Martinez-Morales, Alfredo A; Ozkan, Mihrimah · ACS Nano · 2008

basic_science · Level V

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Abstract

We have developed a substrate-based bottom-up approach to assemble two different color emitting quantum dots (CdSe/ZnS core/shell QDs) on the surface of a novel virus mutant, CPMV-T184C. Electrical characteristics of individual hybrids were investigated by conductive atomic force microscopy for potential digital memory applications (i.e., RAM). These individual 40 nm CPMV-QD(1,2) hybrids exhibited reversible bistable electrical behavior during repeatable writing-reading-erasing processes at the nanoscale.

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