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Journal of Undergraduate Research

Keywords

charge injection, semiconductor nanocrystals, luminescence, spin resonance

College

Physical and Mathematical Sciences

Department

Physics and Astronomy

Abstract

With diameters of only about 4-5 nanometers, semiconductor nanocrystals exhibit different properties than bulk semiconductors. Because of this there has been a focus in research to discover and exploit these new properties. The CdSe nanocrystal is smaller than the normal wave function of an electron in bulk semiconductors and this produces different properties in the nanocrystals than what current knowledge about semiconductors would dictate. Our experience with the different physical properties of these quantum-confined semiconductors is limited, however the possible uses for these nanocrystals are numerous. This necessitates that we research and familiarize ourselves with the properties of these nanocrystals in order use them in these applications and discover new possible applications. Current research with CdSe nanocrystal films by current injection has shown potential in the areas of photoluminescence, and electron spin resonance in order to give clues into the charge distribution of the nanocrystals. New methods of research are also needed in order to deal with these new nanoscale semiconductors. This has been the focus of my research.

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