A warm white emission of Bi3+-Eu3+ and Bi3+-Sm3+ codoping Lu2Ge2O7 phosphors by energy transfer of Bi3+-sensitized Eu3+/Sm3+Quanfeng Li, Fu‐Gen Wu, Wenxian Lin et al.|Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy|2019Cited by 72