RETRACTED: Luminescence of Neodymium Ion-Activated Magnesium Zinc Sulfophosphate Glass: Role of Titanium Nanoparticles Sensitization

This article has been retracted: please see Elsevier policy on Article Correction, Retraction and Removal ( https://www.elsevier.com/about/policies-and-standards/article-withdrawal ). At the request of the Editor-in-Chief, this article, "Luminescence of Neodymium Ion-Activated Magnesium Zinc Sulfophosphate Glass: Role of Titanium Nanoparticles Sensitization," Volume 109, November 2020, 110390, has been retracted. The green XRD spectrum in Figure 3 of j.optmat.2020.110390 representing the PMZ1.5Nd1.5Ti sample is identical to the level of the observed instrumental noise as the black XRD spectrum in Figure 1 of "Synergistic effects of Nd3+ and Ag nanoparticles doping on spectroscopic attributes of phosphate glass," Optical Materials, Volume 110, December 2020, 110403 representing PMZ1.5Nd1.5Ag sample. This exactness is not physically possible. Therefore, the EiC no longer has confidence in the authenticity of the data. In accordance with the journal's publishing policy, the article is retracted.