| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1493647 | Optical Materials | 2015 | 4 Pages |
•Optical properties of (RE0.01, Gd0.90, La0.09)2Si2O7, RE = Eu or Tb, were investigated.•These crystals were grown by the floating zone method.•Gd3+-to-Tb3+ or –Eu3+ energy transfer processes were found.•Using these scintillators, alpha-ray imaging was possible with a CMOS camera.
(Eu0.01, Gd0.90, La0.09)2Si2O7 (Eu:La–GPS) and (Tb0.01, Gd0.90, La0.09)2Si2O7 (Tb:La–GPS) crystals were grown by the floating zone method, and their optical and scintillation properties were investigated. Gd3+-to-Tb3+ or –Eu3+ energy transfer processes were found, and photo-luminescence and radio-luminescence emission spectra showed 5D0–7Fi (i = 1–4) Eu3+ transitions in Eu:La–GPS, and 5D3–7Fi (i = 3–6) and 5D4–7Fi (i = 3–6) transitions in Tb:La–GPS. Using these scintillators, alpha-ray imaging was possible with a CMOS camera. These materials can be used for X-ray detection as well.
