Hydrothermal synthesis and photoluminescence of Ce3+ and Tb3+ doped La2Sn2O7 nanocrystals

Characteristics, Thermodynamics, and Preparation of Nanocaged 12CaO·7Al2O3 and Its Derivatives

“…Moreover, based on literatures and works relating to fluorescent/phosphor materials from authors’ institute together with co‐authors, we have recently successfully prepared C12A7 powders and Ho 3+ ‐doped derivative C12A7–Ho 3+ with pure green up‐conversation emission . Activation energy of crystallization for polycrystal C12A7 powders was calculated to be 813 or 791 kJ/mol (for the former, only considering crystallization) and 1084 or 1077 kJ/mol (for the latter, taking both crystallization and nucleation into consideration) according to both Ozawa/Kissinger and modified Ozawa/Kissinger methods, respectively.…”

Aqueous Chemical Synthesis of Ln2Sn2O7 Pyrochlore‐Structured Ceramics

“…Pyrochlore‐structured ceramics such as lanthanide stannates, Ln 2 Sn 2 O 7 (where Ln = Y, La–Lu), possess interesting electrical and magnetic properties as well as high‐temperature stability. This family of materials has been investigated in diverse applications such as catalysts, magnets, and dielectrics, high‐temperature pigments, optical emission, and hosts for radioactive waste . An interesting characteristic of the pyrochlore crystal structure is that it can tolerate vacancies at A and B sites to a certain extent.…”

“…An interesting characteristic of the pyrochlore crystal structure is that it can tolerate vacancies at A and B sites to a certain extent. By introducing lattice defects, stannate pyrochlores are capable of serving as fast ionic conductors as well as high‐temperature gas sensors …”

“…This family of materials has been investigated in diverse applications such as catalysts, magnets, and dielectrics, high-temperature pigments, optical emission, and hosts for radioactive waste. [1][2][3][4][5][6] An interesting characteristic of the pyrochlore crystal structure is that it can tolerate vacancies at A and B sites to a certain extent. By introducing lattice defects, stannate pyrochlores are capable of serving as fast ionic conductors as well as high-temperature gas sensors.…”

Photoluminescent properties of Tb3+ doped GdSrAl3O7 nanophosphor using solution combustions synthesis

“…[21][22][23][24][25][26] In the rare-earth family, trivalent terbium ion is a significant dopant with strong emission around 544 nm which is found to be very close to the theoretical optimum wavelength for the green component of three primary color centers. [27] Tb 3+ doped phosphors have been proved excellent green luminescent materials to replace commercially available Mn 2+ doped phosphors due to better thermal stability, high brightness, less out gassing, chemical inertness and shorter decay time. [28] Thus, there is a renewed vigor among the researchers for new efficient green phosphors with short decay time.…”