- Conference date: 1–2 February 2013
- Location: Bikaner, Rajasthan, India
Electronic and chemical passivation of CdSe nanocrystals has been achieved by growth of a thin ZnSe layer in aqueous solution. Small aliquots (0.1 ml) of shell precursors have been alternatively added to the CdSe cores, and the growth of ZnSe shell is characterized by absorption, photo luminescence and photo luminescence excitation spectroscopic measurements. X-ray scattering has been applied to know the crystallinity of the nanostructures. The CdSe shows wurtzite crystal structure with traces of zinc blende, but zinc blende structure dominates after ZnSe growth. Photoluminescence excitation spectrum of the samples at room temperature has been exploited to study the electronic transitions of nanocrystalline CdSe prior to growth of ZnSe shell and after.
- II-VI semiconductors
- Absorption spectroscopy
- Crystal structure
- Electron spectroscopy
Data & Media loading...
Article metrics loading...