Morphology-controlled synthesis of Eu3+-doped calcium molybdate red phosphors via a facile room temperature precipitation route

作者：Song, Jie; Xu, Ling; Li, Haiping; Wang, Yizhe; He, Diping; Jiao, Huan^*

来源：Powder Technology, 2014, 254: 527-537.

DOI：10.1016/j.powtec.2014.01.064

• Co-precipitation
• Molybdate
• Morphology-controlled
• Room temperature

Hyperfine red phosphors composed of Eu3+ ion-doped CaMoO4 with varying morphologies were prepared via a facile precipitation method at room temperature without any organic additives. X-ray diffraction (XRD), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), transmission electron microscopy (TEM), and photoluminescence (PL) spectroscopy were used to characterize the synthesized products. The morphologies of the prepared CaMoO4:Eu3+ phosphors were controllable by adjusting the fundamental experimental conditions such as the pH value of the initial solution, the molar ratios of Ca(NO3)(2)/(NH4)(6)Mo7O24, the concentrations of the reactants, the precipitation reagents, and the raw materials. The formation process of CaMoO4:Eu3+ based on the aging time is discussed in detail. The room-temperature photoluminescence properties of the as-prepared CaMoO4:Eu3+ phosphors under diverse experimental conditions were also studied systematically, and their emission spectra showed emission characteristic of Eu3+.

• 出版日期2014-3
• 单位陕西师范大学