Novel Emitting-Color Tunable Phosphors Ba3Y2(BO3)4:Ce3+, Tb3+ with Efficient Energy Transfer for Near-UV Light-Emitting Diodes

作者：Han, Bing^*; Zhang, Jie; Lu, Yinhua

来源：Journal of the American Ceramic Society, 2013, 96(1): 179-183.

DOI：10.1111/j.1551-2916.2012.05464.x

• TB3+
• EMISSION
• CE3+
• EXCITATION
• CRYSTAL
• FIELD
• LA
• GD
• LN

This work presents the ultravioletvisible spectroscopic properties of Ba3Y2(BO3)4:Ce3+,Tb3+ phosphors prepared by a high-temperature solid-state reaction. Under ultraviolet light excitation, tunable emission from the blue to yellowish-green region was obtained by changing the doping concentration of Tb3+ when the content of Ce3+ is fixed. The efficient energy transfer process between Ce3+ and Tb3+ ions was observed and confirmed in terms of corresponding excitation and emission spectra. In addition, the energy transfer mechanism between Ce3+ and Tb3+ was proved to be dipoledipole interaction in Ba3Y2(BO3)4:Ce3+,Tb3+ phosphor. By utilizing the principle of energy transfer and appropriate tuning of Ce3+/Tb3+ contents, Ba3Y(BO3)4:Ce3+,Tb3+ phosphors can have potential application as an UV-convertible phosphor for near-UV excited white light-emitting diodes.

• 出版日期2013-1
• 单位郑州轻工业大学