Fluorescent properties of a blue-to green-emitting Ce3+, Tb3+ codoped amorphous calcium silicate phosphors

Influence of hardened cement paste content on the water absorption of fine recycled concrete aggregates

“…This figure shows Journal of Sustainable Cement-Based Materials 5 that calcareous sand and mortar decarbonize over 600°C whereas most of the pure cement paste is dehydrated below 600°C. Indeed, several authors [28][29][30] have shown that the dehydration of C-S-H is about 180-300°C and the dehydration of CH (Portlandite) is about 450-550°C. Therefore, a heating at 600°C has been chosen for the measurement of bound water content as it allows avoiding the decarbonation of aggregates.…”

Photoluminescence Properties of Color‐Tunable Ca3La6(SiO4)6: Ce3+, Tb3+ Phosphors

“…Ce 3+ ions absorb the lights in the UV region efficiently and exhibit a broad emission band in the visible region because of the 4 f –5 d allowed transitions. Terbium (Tb 3+ ) ions are incorporated into Ce 3+ ‐activated materials to extend the range of applications of these phosphors via the energy‐transfer process between Ce 3+ and Tb 3+ ions . In this work, Ce 3+ and Tb 3+ ions were co‐doped into Ca 3 La 6 (SiO 4 ) 6 with Ce 3+ ions acting as the energy donors (sensitizers) and Tb 3+ ions acting as the energy acceptors (activators).…”

“…Terbium (Tb 3+ ) ions are incorporated into Ce 3+ -activated materials to extend the range of applications of these phosphors via the energy-transfer process between Ce 3+ and Tb 3+ ions. [16][17][18][19][20] In this work, Ce 3+ and Tb 3+ ions were co-doped into Ca 3 La 6 (SiO 4 ) 6 with Ce 3+ ions acting as the energy donors (sensitizers) and Tb 3+ ions acting as the energy acceptors (activators). The luminescence properties of Ca 3 La 6 (SiO 4 ) 6 : Ce 3+ , Tb 3+ phosphors were examined in detail.…”