Cationic substitution induced tuning of photoluminescence in Ba2.94-2xLaxNaxP4O13: 0.06Eu phosphors for WLEDs. - Wu, Zhan-Chao; Cui, Li-Li; Zhang, Xue; Zhang, Xing-Xing; Liu, Jie; Ma, Li; Wang, Xiao-Jun; Zhang, Ji-Lin (Journal of Alloys & Compounds, 2020)