Luminescence characteristics of Ce3+-doped Lu1−xScxBO3 solid solution single crystals grown by Czochralski method

Solid solution crystals of Lu1−xScxBO3:Ce3+ (x = 0.2, 0.3, 0.5, 0.7) were grown by Czochralski method. These crystals have high optical transmittance within wavelength concerned, except for an absorption shoulder in Lu0.8Sc0.2BO3:1at%Ce3+ crystal from 360 to 530 nm. With the increase of Sc/Lu ratio, the excitation and emission spectra have redshift due to change of Ce3+ crystalline environment and the lifetime gradually increases due to the increase of emission wavelength. Efficient energy transfer from the self-trapped excitons to Ce3+ ions was observed. Lu0.8Sc0.2BO3:1at%Ce3+ crystal, due to high density, short decay time, high scintillation efficiency and non-hygroscopic property, could be a promising scintillator.

These crystals have high optical transmittance within wavelength concerned.Figure optionsDownload high-quality image (228 K)Download as PowerPoint slideResearch highlights
► Lu1−xScxBO3:Ce solid solution crystals are formed.
► These crystals have high optical transmittance within wavelength concerned.
► Luminescence and lifetime properties of Lu1−xScxBO3:Ce crystals depend on the Sc/Lu ratio.
► (Lu0.8Sc0.2)0.99Ce0.01BO3 crystal is a promising scintillator.