Synthesis and luminescence characterization of Pr3+ doped Sr1.5Ca0.5SiO4 phosphor

Synthesis and photoluminescent characterization of ceramic phosphors Li2MgGeO4:Ln3+ (Ln3+ = Pr3+ or Tm3+) under different excitation wavelengths

“…According to previous studies, different ceramic phosphors containing praseodymium ions, such as BaNb 2 O 6 , 30 CaWO 4 , 31 and Y 2 MoO 6 , 32 exhibit orange-red emission. However, results obtained for Sr 1.5 Ca 0.5 SiO 4 , 33 Ca 3 Y 2 Si 3 O 12 , 34 and CaSnO 3 (ref. 35 ) show that chromaticity coordinates determined for system doped with Pr 3+ ions correspond to green and greenish-blue region.…”

Mechanisms of smart waterflooding in carbonate oil reservoirs - A review

“…It was shown that increased temperature can change the rock wettability from intermediate and low water-wet to strongly water-wet. Hamouda and Rezaei Gomari (2006) reported also that increased temperature could make calcite surface more water-wet. Contact angle measurements confirmed these observations: contact angle decreased with increased temperature, indicating a more water-wet surface (Karoussi and Hamouda, 2007).…”

Photoluminescence behavior on Sr 2+ modified CaCu 3 Ti 4 O 12 based ceramics

“…Some studies analyzed the substitution of Ca 2+ by Sr 2+ in the CCTO [35,38], but few studies have emphasized the role of partial and total substitutions of the Cu 2+ ions. The changes in the PL property of the CCTO phase with the partial and total substitution of Cu 2+ by Sr +2 in the presence of SCTO phase have been reported by a small number of authors [39][40][41]. Therefore, our work is focused to explain the photoluminescent response of crystalline ceramics with multiple phases obtained through solid-state reaction.…”