Luminescent materials
AssigneeAgency of Industrial Science and Technology
InventorsAkira Kamiya, Jun Zhu, Akira Watazu, Katsuyoshi Naganuma
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Abstract
The present invention provides a novel orange light-emitting phosphorescent material that is non-toxic and chemically stable in air, and this invention relates to a Ti—CaO phosphorescent material, produced from a starting material of calcium oxide (CaO), or of calcium carbonate (CaCO3), calcium hydroxide(Ca(OH)2), calcium sulfate(CaSO4), calcium oxalate (CaC2O4), or other compound to be converted to CaO through heating in air, by a process of bringing this starting material into contact with metallic titanium (Ti) and conducting heat treatment thereof in vacuo or in an atmosphere that is not reactive with Ti such as argon gas, or by a process of mechanical alloying and the like of CaO and Ti.
Claims9
A phosphorescent material capable of emitting orange light, which comprises CaO with Ti as an interstitial element therein.
Dependencies are inferred from the claim text.