An empirical energy level scheme to predict photoluminescent and long persistent luminescent properties of Ln(3+) doped NaCa2GaGe5O14 materials

作者：Zou, Zehua; Li, Jiajia; Zhou, Hui; Zhang, Jiachi^*; Ci, Zhipeng^*; Wang, Yuhua

来源：Journal of Luminescence, 2016, 179: 629-632.

DOI：10.1016/j.jlumin.2016.07.061

• Photoluminescence
• Long persistent luminescence
• NaCa2GaGe5O14

An energy level scheme of the NaCa2GaGe5O14:Ln(3+)/Ln(2+) phosphors has been constructed by collecting spectroscopy data. The energy level positions of Ln(2+)/Ln(3+) can be used to gain insight into the photoluminescence and long persistent luminescence properties of the NaCa2GaGe5O14:Ln(3+)/Ln(2+) phosphors and the ability of Ln(3+) codopants as foreign electron traps. All the theoretical predictions have been confirmed by the experimental results. For this case, this energy level scheme is reliable and can be used as a transferable empirical tool to study the luminescent properties of known phosphors, and even guide the further development of new phosphors.

• 出版日期2016-11
• 单位兰州大学