Available online 4 April 2013 Hom Nath Luitel, Takanori Watari, Rumi Chand, Toshio Torikai, Mitsunori Yada, Hiroshi Mizukami
Graphical abstract
Excitation and fluorescence emission spectra of three extreme compositions of Ca, Sr and Ba in Sr4Al14O25phosphor (viz.4CaO·7Al2O3, 4SrO·7Al2O3and 4BaO·7Al2O3) doped with 4at% Eu2+and 8at% Dy3+(inset shows the digital micrograph of corresponding phosphors).