**Author details**

Sabrina Roguai<sup>1</sup> \* and Abdelkader Djelloul<sup>2</sup>

1 LASPI<sup>2</sup> A Laboratory of Structures, Properties and Inter-Atomic Interactions, Abbes Laghrour University, Khenchela, Algeria

2 Science of Matter, Abbes Laghrour University, Khenchela, Algeria

\*Address all correspondence to: rog.sabrina@yahoo.fr

© 2021 The Author(s). Licensee IntechOpen. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/ by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

*Roles of Cobalt Doping on Structural and Optical of ZnO Thin Films by Ultrasonic Spray… DOI: http://dx.doi.org/10.5772/intechopen.95920*
