Kabir,M , , Ghahari,M , , Shafiee Afarani,M , , Arabi,A , and Najafi,F . "Study of luminescent properties of Y2O3:Eu+3 nano particles synthesized by precipitation method in the presence of various surfactants", Advanced Materials and New Coatings, 1, 1, 2012, 3-14. doi: amnc/2012 . 1. 1 . 1