Symmetry considerations in CdSe nanocrystals |
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Authors: | Dalpian Gustavo M Tiago Murilo L Lopez del Puerto Marie Chelikowsky James R |
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Affiliation: | Center for Computational Materials, Institute for Computational Engineering and Sciences, Department of Physics, University of Texas, Austin, 78712, USA. |
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Abstract: | Semiconductor nanocrystals or quantum dots show a wide range of physical properties depending on their size or shape. In this paper, we show that symmetry is also an important characteristic that can lead to different electronic and optical properties. We use pseudopotential density-functional theory, within a real space approach, and address the sensitivity of electronic and optical properties with respect to the symmetry point groups associated to CdSe nanocrystals. |
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