Abstract
La(3)LiMn(1-x)Ti(x)O(7) (0 ≤ x ≤ 0.05) samples were synthesized by a solid-state reaction method, and a single-phase form was observed for the samples in the range of x ≤ 0.03. Crystal structure, optical properties, and color of the La(3)LiMn(1-x)Ti(x)O(7) (0 ≤ x ≤ 0.03) samples were characterized. Strong optical absorption was observed at a wavelength between 400 and 550 nm, and a shoulder absorption peak also appeared around 690 nm in all samples; orange colors were also exhibited. Among the samples synthesized, the most brilliant orange color was obtained at La(3)LiMn(0.97)Ti(0.03)O(7). The redness (a*) and yellowness (b*) values of this pigment were higher than those of the commercially available orange pigments. Therefore, the orange color of this pigment is brighter than those of the commercial products. Since the La(3)LiMn(0.97)Ti(0.03)O pigment is composed of non-toxic elements, it could be a new environmentally friendly inorganic orange pigment.