Phonons in bulk CdSe and CdSe nanowires

Excitons, biexcitons, and phonons in ultrathin CdSe/ZnSe quantum structures

Scanning tunneling luminescence of individual CdSe nanowires.

The local luminescence properties of individual CdSe nanowires composed of segments of zinc blende and wurtzite crystal structures are investigated by low-temperature scanning tunneling luminescence spectroscopy. Light emission from the wires is achieved by the direct injection of holes and electrons, without the need for coupling to tip-induced plasmons in the underlying metal substrate. The p...

Improved photoluminescence quantum yield and stability of CdSe-TOP, CdSe-ODA-TOPO, CdSe/CdS and CdSe/EP nanocomposites

Size-controllablemonodisperse CdSe nanocrystals with different organic cappingwere prepared based on the hot-injectionmethod. The effective separation of nucleation and growthwas achieved by rapidlymixing two highly reactive precursors. As a contrast, we preparedCdSe/CdS nanocrystals (NCs) successfully based on the selective ion layer adsorption and reaction (SILAR) technique. This inorganic ca...

Photoluminescence of CdSe Nanowires Grown With and Without Metal Catalyst

The crystal phase of Au-NWs is assessed by means of high-resolution transmission electron microscopy (HR-TEM). NWs are dispersed on a transmission electron microscopy (TEM) grid and imaged with a JEOL 4000EX-II TEM. Figure S-2(a) shows a HR-TEM lattice imaging of a representative Au-NW. The measured interplanar spacing (3.74 Å) is consistent with the (110) planes of a CdSe crystal with the wurt...

Broad spectral photocurrent enhancement in Au-decorated CdSe nanowires.

Metal-semiconductor hybrid nanostructures promise improved photoconductive performance due to plasmonic properties of the metal portions and intrinsic electric fields at the metal-semiconductor interface that possibly enhance charge separation. Here we report gold decorated CdSe nanowires as a novel functional material and investigate the influence of gold decoration on the lateral facets on th...