Energy dispersive spectroscopy , doped

Sintering of ZnO-SnC>2 and ZnO-MgO mixtures, with few at. % of Sn or Mg at 1280 °C under argon flow leads to the growth of microrods on the sample surface, which are formed by oriented stacks of nanoplates. Energy dispersive spectroscopy and cathodoluminescence (CL) in the scanning electron microscope show that the stacks of nanoplates consist of Sn doped and Mg doped ZnO respectively. The stacks of nanoplates have well defined orientations relative to the growth axis of the rod. In the case of Sn the formation of the nanoplates is attributed to the stresses generated by the presence of Sn atoms in the rods. 

Energy Dispersive Spectroscopy. X-rays emitted by an element struck by a beam of electrons are detected by a Li-doped silicon crystal, in which electron-hole... 

CdS and Mn-doped CdS NPs of 2 mnhave been prepared by Dandia et al. [45] at room temperature by a wet chemieal teehnique. The heterogeneous catalysts were fully characterized by XRD, TEM, energy-dispersive X-ray spectroscopy (EDX), inductively coupled plasma atomic emission spectroscopy (ICP-AES), and UVA IS. These NPs were exploited by us to study their catalytic activities towards the chemoselective, aqueous-mediated synthesis of 2-aiyl benzimidazoles (Scheme 5.13). 

A very powerful method to study the electronic structure of solids is electron energy-loss spectroscopy (EELS). Because electrons transfer not only energy to the solid (as do photons) but also momentum, in addition to the energetic position of the electronic states, the dispersion of the bands can also be studied. Figure 1.58 shows the energy-loss spectrum of polypyrrole doped with the sulphonic acid H—(CH2)4—SO3 [126]. The various curves were recorded at different values of momentum transfer q. The dashed lines connect corresponding peaks. Vertical lines are characteristic of transitions into narrow bands (without dispersion), whereas inclined lines indicate broad bands. The maxima in the spectrum with low momentum transfer (bottom curve) are related to the maxima in the electronic joint density of states, but for... 

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