Determination of the optical gap bowing parameter for ternary Ni 1−x Zn x O cubic rocksalt solid solutions
The lattice parameter variation for phase pure cubic rocksalt (RS) Ni 1−x Zn x O ternary solid solutions is observed to be perfectly governed by Vegard's law. X-ray absorption near edge spectroscopy confirms the RS symmetry of Zn atoms in the cubic lattice of Ni 1−x Zn x O. The optical gap bowi...
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Published in | Dalton transactions : an international journal of inorganic chemistry Vol. 44; no. 33; pp. 14793 - 14798 |
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Main Authors | , , , , , , , |
Format | Journal Article |
Language | English |
Published |
2015
|
Online Access | Get full text |
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Summary: | The lattice parameter variation for phase pure cubic rocksalt (RS) Ni
1−x
Zn
x
O ternary solid solutions is observed to be perfectly governed by Vegard's law. X-ray absorption near edge spectroscopy confirms the RS symmetry of Zn atoms in the cubic lattice of Ni
1−x
Zn
x
O. The optical gap bowing parameter for RS Ni
1−x
Zn
x
O ternary solid solutions is determined, using diffuse reflectivity, to be −0.93 ± 0.05 eV. The negative value of the bowing indicates a repulsive interaction between the ligand O-2p and the metal Ni-3d orbitals. The determined value of the bowing parameter can be useful in designing UV photodetectors based on Ni
1−x
Zn
x
O solid solutions. |
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ISSN: | 1477-9226 1477-9234 |
DOI: | 10.1039/C5DT02283E |