Directing semiconductor nanorod assembly into 1D or 2D supercrystals by altering the surface charge

Directing semiconductor nanorod assembly into 1D or 2D supercrystals by altering the surface charge.

Coulomb repulsion due to the surface charge on semi-conductor nanorods works against the dipole-dipole attraction that tends to direct the nanorods to self-assemble; the nature of this self-assembly for CdSe nanorods can be thus altered by pyridine washing, which charges the rods surface--thereby allowing the Coulomb repulsion to tailor the alignment.

Spin polarized transport in 1D and 2D semiconductor heterostructures

The high electron mobility spin transistor comprises a 1D or 2D electron gas, obtained from III-V semiconductor heterostructure, with ferromagnetic source and drain contacts. The latter act respectively as a polarizer and as an analyzer for the spin of the electrons, and the gate potential is used to control the spin precession in the channel. After reviewing the main spin dephasing effects exi...

Collective Plasmonic Properties in Few-Layer Gold Nanorod Supercrystals

Gold nanorod supercrystals have been widely employed for the detection of relevant bioanalytes with detection limits ranging from nano- to picomolar levels, confirming the promising nature of these structures for biosensing. Even though a relationship between the height of the supercrystal (i.e., the number of stacked nanorod layers) and the enhancement factor has been proposed, no systematic s...

Semiconductor Nanorod Liquid Crystals and their Assembly on a Substrate

Quasiperiodicity and 2D Topology in 1D Charge Ordered Materials

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