Y3Al3B2O12:RE3+ (RE = Tb, Eu): A promising material for the application of light emitting diode (LED)

• Tác giả: Van Do Phan
• Ngôn ngữ: eng
• Thông tin xuất bản: Tạp chí Khoa học Kỹ thuật Thủy lợi và Môi trường, 2022
• Mô tả vật lý: tr.61
• Bộ sưu tập: Metadata
• ID: 336374

Tóm tắt

Y3Al3B2O12 polycrystalline singly doped and co-doped with RE3+ ions (RE = Tb or/and Eu) have been synthesized by the solid-state interaction method at a temperature of 1250oC. The measurements of the luminescence excitation and luminescence spectra have been carried out at room temperature. The emission-color feature of materials was analyzed by CIE chromatic coordinates diagram and the correlated color temperature. The optimal concentration of RE3+ ions for emission of materials was found by studying the luminescence spectra. The rate and efficiency of the energy transfer process from Tb3+ to Eu3+ in Y3Al3B2O12:Tb3+,Eu3+ polycrystalline have also been calculated based on the lifetime of the 5D4 level of the Tb3+ ion.