| CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
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Structural and Optoelectronic Properties of Cubic CsPbF3 for Novel Applications |
| G. Murtaza1, Iftikhar Ahmad1,2**, M. Maqbool3, H. A. Rahnamaye Aliabad4, A. Afaq5
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1Materials Modeling Laboratory, Department of Physics, Hazara University, Mansehra, Pakistan
2Department of Physics, University of Malakand, Chakdara, Pakistan
3Department of Physics and Astronomy, Ball State University, Indiana, USA
4Department of Physics, Sabzevar Tarbiat Moallem University, Sabzevar, Iran
5Center of Excellence in Solid State Physics, Qua-e-Azam Campus, Lahore, Pakistan
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| Cite this article: |
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G. Murtaza, Iftikhar Ahmad, M. Maqbool et al 2011 Chin. Phys. Lett. 28 117803 |
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Abstract Chemical bonding as well as structural, electronic and optical properties of CsPbF3 are calculated using the highly accurate full potential linearized augmented plane−wave method within the framework of density functional theory (DFT). The calculated lattice constant is found to be in good agreement with the experimental results. The electron density plots reveal strong ionic bonding in Cs-F and strong covalent bonding in Pb-F. The calculations show that the material is a direct and wide bandgap semiconductor with a fundamental gap at the R-symmetry point. Optical properties such as the real and imaginary parts of the dielectric function, refractive index, extinction coefficient, reflectivity, optical conductivity and absorption coefficient are also calculated. Based on the calculated wide and direct bandgap, as well as other optical properties of the compound, it is predicted that CsPbF3 is suitable for optoelectronic devices and anti-reflecting coatings.
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| Keywords:
78.20.-e
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Received: 28 May 2011
Published: 30 October 2011
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| PACS: |
78.20.-e
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(Optical properties of bulk materials and thin films)
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