Magneto-optical characteristics of Mn-doped ZnO films deposited by ultrasonic spray pyrolysis

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Abstract

This work considers a Mn-doped ZnO (ZnO:Mn) film deposited on a slide glass substrate by ultrasonic spray pyrolysis. ZnO:Mn (Mn at 1.5 at%) film with and without an applied magnetic field, is demonstrated to have absorption edges at 2.74 and 2.84 eV, respectively. These values are lower than that of a pure ZnO film because the Mn-doping causes the exchange of s-d and p-d interactions or high carrier concentration. When the ZnO:Mn film is placed in a magnetic field B z of 0.5 T, an absorption edge and a photoluminescence (PL) shift of about 0.1 eV and 85 meV, respectively, are observed. This shift is attributed to the interband magneto-optic absorption associated with the Landau splitting. The observed shift increases with the amount of Mn dopant. © 2011 Elsevier Ltd. All rights reserved.

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Chen, L. C., Tien, C. H., & Fu, C. S. (2012). Magneto-optical characteristics of Mn-doped ZnO films deposited by ultrasonic spray pyrolysis. Materials Science in Semiconductor Processing, 15(1), 80–85. https://doi.org/10.1016/j.mssp.2011.04.003

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