X-Doped (X = C, N, F, P) ZnO Sheet: Density Functional Theory Calculations

Date

2015-03-01

Author

Kökten, Hatice
ERKOÇ, ŞAKİR

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The structural and electronic properties of honeycomb-like zinc oxide sheet has been investigated by performing density functional theory calculations. Carbon, Nitrogen, Fluorine and Phosphorus atom doped form of ZnO sheets have been considered for calculations as well as their defect free forms. All systems under consideration have been fully optimized. The substitution atoms have been replaced on the oxygen site in the neutral charge state. All the calculations have been repeated for different cell sizes. Excess charges, bond lengths and formation energies have been calculated and compared with each other. It has been found that P atom substitution expands the bond length with respect to pristine sheets. C atom substitution yields relatively larger charge transfer from C to the lattice. P atom substitution is an exothermic process, for the others the process is an endothermic.

Subject Keywords

DFT calculation, Substitutional defect, ZnO nanosheet

URI

https://hdl.handle.net/11511/41166

Collections

Department of Physics, Article