This article has been retracted at the request of the Editor-in-Chief.
The article substantially reproduces parts (especially figures showing experimental results) of an article on the same topic previously published by one of the authors in the journal J. Mater. Sci.: Mater. Electron. (“The role of europium and dysprosium in the bluish-green long lasting Sr2Al2SiO7:Eu2+, Dy3+ phosphor by solid state reaction method”, 26 (2015) 7059–7072, 10.1007/s10854-015-3327-2). There was also a failure to cite this previous article.
One of the conditions of submission of a paper for publication is that authors declare explicitly that their work is original and has not appeared in a publication elsewhere. Re-use of any data should be appropriately cited. As such this article represents a severe abuse of the scientific publishing system. The scientific community takes a very strong view on this matter and apologies are offered to readers of the journal that this was not detected during the submission process.