Preparation and fluorescence property of red-emitting Eu3+-activated amorphous calcium silicate phosphor

Fluorescence Properties and Synthesis of Green-Emitting Tb3+-Activated Amorphous Calcium Silicate Phosphor by Ultraviolet Irradiation of 378 nm

“…This value was similar to that of Ca 2+ . In the previous paper, it reported that Eu 3+ ions entered precedence in layer of CSH [5]. In the present paper, there was Tb 3+ ions abundantly between the layers of the CSH.…”

“…• C, the emission intensity is lowered by presence of water molecule or OH group in layer of CSH structure [5]. However, the emission intensity abrupt increased water molecule or OH group in layer dried up at around 800…”

“…To obtain true white emission, the emission intensity of green-emitting and red-emitting phosphors must have a strong. We reported on synthesis and fluorescence properties of novel red-emitting amorphous calcium silicate (not glassy system compounds, powder state) phosphor [5]. Eu 3+ -activated amorphous calcium silicate phosphor was produced by heating Eu 3+ -activated CSH phosphor at 870…”

Preparation and fluorescence properties of novel alkaline earth silicate phosphors by reduction treatment of Eu3+ to Eu2+

“…12)14) We have reported the preparation of phosphors by a soft process using a liquid phase reaction. 15), 16) We have also reported the preparation and fluorescence properties of Eu 3+ -activated alkaline earth silicate phosphors which have the interlayer structure. 16 .…”

“…15), 16) We have also reported the preparation and fluorescence properties of Eu 3+ -activated alkaline earth silicate phosphors which have the interlayer structure. 16 . The Eu 2+ ion has an electron in the 5d orbital, so that it is strongly influenced by the host crystal, according to, for example, the bonding strength of the host crystal, activator sites, and the coordination number.…”