Luminescence of single crystal CaMoO4

Laser-Induced Synthesis of CaMoO<SUB>4</SUB> Nanocolloidal Suspension and Its Optical Properties

“…Most PL studies of CaMoO 4 crystals at room temperature reported green emission near 530 nm for excitation between 240 and 280 nm. [21][22][23] Consistent with the widened optical band-gap estimated from the Tauc plot in Fig. 4(a), the colloidal suspension exhibited a blue-shifted broad emission peak near 430 nm.…”

Synthesis of CaMoO4 hierarchical structures via a simple slow-release co-precipitation method

“…At a low pH, namely, the concentration of OH − much lower, the hydrolysis of Mo 7 O 24 6− is restrained and there is a little free MoO 4 2− . In this moment, the formation of CaMoO 4 is slow and controlled by [MoO 4 2− ], which is favorable to the formation of hierarchical structures. With increasing pH value, the concentration of OH − reaches a high level and promotes the equilibrium (5) to the rightwards, which results in the nucleation rate much faster than the rate of crystal growth.…”

“…This is similar to the case of peach-pit-like CaMoO 4 structures employed Na 2 MoO 4 as molybdenum source in some degree. In a word, the [MoO 4 2− ] plays an important role in the final morphology. In other words, the method using (NH 4 ) 6 Mo 7 O 24 as the precursor has the advantage of relatively slow release of MoO 4 2− so that favors the formation of uniform erythrocyte-like CaMoO 4 structures.…”

“…As an important material in electrooptical industry, calcium molybdate received continuous research interest owing to novel and intriguing properties [3] in a wide range of fields as laser host materials [4], solid-state scintillators [5,6], solid-state laser materials [7], luminescence materials [8,9], optical fibers [10] and so on. Traditional synthetic methods, such as microemulsion method [11], solid-state reaction [12], solvent/hydrothermal method [13], and microwave-assisted synthesis [14] etc., are often employed to prepare the luminescent materials.…”

Synthesis of scheelite-type nanocolloidal particles by pulsed laser ablation in liquid and their size distribution analysis

“…10(a~b). Most studies on the PL of CaWO 4 and CaMoO 4 crystals have reported blue and green emission near 420 and 530 nm, respectively, for excitations between 240 and 280 nm [33][34][35] at room temperature. Consisted with the widened optical band-gap estimated from the Tauc plots in Fig.…”