Optical and magnetic properties of ZnCoO layers

M. Godlewski; M. I. Łukasiewicz; E. Guziewicz; V. Yu. Ivanov; Ł. Owczarczyk; B. S. Witkowski

doi:10.1016/j.optmat.2012.03.031

Optical and magnetic properties of ZnCoO layers

Materials Science 2013-08-12 v1

Authors: M. Godlewski , M. I. Łukasiewicz , E. Guziewicz , V. Yu. Ivanov , Ł. Owczarczyk , B. S. Witkowski

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Abstract

Optical and magneto-optical properties of ZnCoO films grown at low temperature by Atomic Layer Deposition are discussed. Strong wide band absorption, with onset at about 2.4 eV, is observed in ZnCoO in addition to Co-related intra-shell transitions. This absorption band is related to Co 2+ to 3+ photo-ionization transition. A strong photoluminescence (PL) quenching is observed, which we relate to Co recharging in ZnO lattice. Mechanisms of PL quenching are discussed.

Keywords

ZnCoO films atomic layer deposition magneto-optical properties photo-ionization transition photoluminescence quenching Co recharging

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@article{arxiv.1308.2050,
  title  = {Optical and magnetic properties of ZnCoO layers},
  author = {M. Godlewski and M. I. Łukasiewicz and E. Guziewicz and V. Yu. Ivanov and Ł. Owczarczyk and B. S. Witkowski},
  journal= {arXiv preprint arXiv:1308.2050},
  year   = {2013}
}

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21 pages, 4 figures, 44 refereces, original paper

Optical and magnetic properties of ZnCoO layers

Abstract

Keywords

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