Nanoscale memory characterization of virus-templated semiconducting quantum dots.
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.
Portney
Nathaniel G
NG
Department of Bioengineering, University of California, Riverside, California 92521, USA.
Martinez-Morales
Alfredo A
AA
Ozkan
Mihrimah
M
D017798:Comovirus / Q000737:chemistry* / Q000648:ultrastructure*; D016248:Computer Storage Devices; D003460:Crystallization / Q000379:methods*; D046911:Macromolecular Substances / Q000737:chemistry; D008422:Materials Testing; D008968:Molecular Conformation; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure; D036103:Nanotechnology / Q000379:methods*; D010316:Particle Size; D045663:Quantum Dots; D012666:Semiconductors; D013499:Surface Properties
D046911:Macromolecular Substances