Details

Autor(en) / Beteiligte

• Lin, Ting
• Xie, Jian Jun
• Ren, Yu Ying
• Deng, Lian Yun
• Fan, Ling Cong
• Xu, Zhi Bin
• Shi, Ying

Titel

Fabrication and Luminescent Properties of Translucent Ce3+:Lu2SiO5 Ceramics by Spark Plasma Sintering

Ist Teil von

• Advanced materials research, 2011-07, Vol.295-297, p.1300-1304

Ort / Verlag

Trans Tech Publications Ltd

Erscheinungsjahr

2011

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• The spark plasma sintering (SPS) technique was employed to investigate the fabrication of cerium-doped lutetium orthosilicate (Ce:Lu2SiO5, LSO) polycrystalline scintillation ceramics starting from nanosized Ce:LSO powders synthesized by sol-gel processing. Fully-densed polycrystalline Ce:LSO ceramics with fine grains were fabricated on optimal sintering conditions of 1350°C for 5 min under pressure of 50 MPa. Translucent monolithic Ce:LSO ceramic sample was obtained with excellent luminescent characteristics after being annealed in air at 1000°C for 15 hrs. Under 360 nm UV excitation, a broad emission peak centered at 425 nm was detected for Ce:LSO ceramic, with a short decay time of only 9.67 ns. The luminescence intensity of annealed sample(doped by 0.5mol% Ce3+) is 3 times greater than that of BGO crystal under X-ray excitation. The good luminescent characteristics make Ce:LSO polycrystalline ceramics a promising scintillator candidate with high performance for radiation detection in future.