Investigations of Ba3BP3O12:Eu2+ single crystal as a scintillator

• Eu2+-activated Ba3BP3O12 single crystals have been grown by the top-seeded solution growth method (TSSG) for the first time.
• Ba3BP3O12:Eu2+ single crystal exhibits wide transparency in the wavelength range from 250 to 700 nm.
• Ba3BP3O12:Eu2+ single crystal shows high overall scintillation efficiency (1.8 times of BGO) and moderate decay time (860 ns).

Single crystals of Ba3BP3O12:Eu2+ with high optical quality have been grown by the top-seeded solution growth (TSSG) method using BPO4–NaF mixture as the flux. Ba3BP3O12:Eu2+ single crystal exhibits wide transparency in the wavelength range from 250 to 700 nm, and shows a broad emission band in the wavelength range of 350–650 nm when excited by X-ray radiation. The overall scintillation efficiency is about 1.8 times of that of BGO crystal under the same conditions. Its room temperature fluorescence decay curve exhibits a single-exponent shape with decay time of about 860 ns. It is worth noting that Ba3BP3O12:Eu2+ single crystal may be of great interest for applications in the field of scintillation materials considering its scintillation properties, as well as the good chemical stability.

Figure optionsDownload as PowerPoint slide