Phase equilibrium diagram for the system Gd2O3-MoO3

Solid state reaction synthesis and optical spectroscopy of ferroelectric (Gd1−Ln )2(MoO4)3; with Ln = Yb or Tm

“…Yb 3+ (4f 13 ) and Tm 3+ (4f 12 ) ions also share another feature: they are the laser active lanthanides with the largest number of electrons in the f orbital, therefore they are more sensitive to the vibrational host environment and the optical bands have larger bandwidths than in other trivalent lanthanides. This large bandwidth allows a good overlapping of the laser crystal absorption with the DL emission, it is used to obtain some laser tunability and it supports ultrashort (<100 fs) laser pulses by passive mode-locking.…”

“…␤ phase is ferroelectric, with Curie temperature T c = 432 K [12]. Although, some authors reported the transformation upon heating of ␤ phase into another ␥ phase before melting [10], the presence of the latter phase is not generally found [13]. Gd 2 (MoO 4 ) 3 melts congruently at 1430 K, which is convenient for the Czochralski crystal growth.…”

Sm3+-activated gadolinium molybdate: an intense red-emitting phosphor for solid-state lighting based on InGaN LEDs

“…All these measurements were performed at room temperature (RT). group D 3 2d [24]. Compared with the tetragonal phase, monoclinic a-Gd 2 (MoO 4 ) 3 is a stable phase at RT.…”

Photoluminescence features of new Eu3+ -doped Gd4Mo7O27 phosphors synthesized using glass crystallization technique

“…Excellent photoluminescence (PL) performances of rareearth (RE) ions in glasses and crystals have been achieved through the design of the coordination and bonding states of RE ions. RE 3+ -doped molybdenum oxide (MoO 3 )-based materials such as Eu 3+ -doped CaMoO 4 and Gd 2-x Eu x (MoO 4 ) 3 have been regarded as excellent phosphors emitting intense red light [1,2]. Very recently, the present authors [3] [6].…”