TY - JOUR
T1 - Discovery of novel inorganic Mn5+-doped sky-blue pigments based on Ca6BaP4O17
T2 - Crystal structure, optical and color properties, and color durability
AU - Kim, Sun Woog
AU - Sim, Go Eun
AU - Ock, Ji Young
AU - Son, Jeong Hun
AU - Hasegawa, Takuya
AU - Toda, Kenji
AU - Bae, Dong Sik
N1 - Funding Information:
This research was financially supported by the Ministry of Education (MOE) and National Research Foundation of Korea (NRF) through the Human Resource Training Project for Regional Innovation (No. 2015H1C1A1035600).
Publisher Copyright:
© 2016 Elsevier Ltd
PY - 2017/4/1
Y1 - 2017/4/1
N2 - Novel inorganic sky-blue pigments, Ca6Ba(P1-xMnx)4O17 (0 ≤ x ≤ 0.13) were synthesized in a single phase form by a conventional solid-state reaction method and their color properties were investigated in the detail. The pigments exhibited strong optical absorption in the UV and the yellow-red light regions due to the CT transition in MnO4 tetrahedra and the DMSO-d6 transitions of Mn5+, which is the origin of the sky-blue color. The optimization of the composition resulted in the attainment of the highest sky-blue hue for the Ca6Ba(P0.99Mn0.01)4O17, where the L*, a*, b*, C, and H° values are 75.47, −11.67, −10.29, 15.6, and 221.4°, respectively. These pigments showed a low chemical stability of color for acid/alkali solution, whereas the pigments showed an excellent color durability for heat and light. Although they are required to improve the chemical stability of color, the present pigment could be an attractive candidate as a novel environment friendly inorganic sky-blue pigment.
AB - Novel inorganic sky-blue pigments, Ca6Ba(P1-xMnx)4O17 (0 ≤ x ≤ 0.13) were synthesized in a single phase form by a conventional solid-state reaction method and their color properties were investigated in the detail. The pigments exhibited strong optical absorption in the UV and the yellow-red light regions due to the CT transition in MnO4 tetrahedra and the DMSO-d6 transitions of Mn5+, which is the origin of the sky-blue color. The optimization of the composition resulted in the attainment of the highest sky-blue hue for the Ca6Ba(P0.99Mn0.01)4O17, where the L*, a*, b*, C, and H° values are 75.47, −11.67, −10.29, 15.6, and 221.4°, respectively. These pigments showed a low chemical stability of color for acid/alkali solution, whereas the pigments showed an excellent color durability for heat and light. Although they are required to improve the chemical stability of color, the present pigment could be an attractive candidate as a novel environment friendly inorganic sky-blue pigment.
KW - CaBaPO
KW - Color durability
KW - Inorganic sky-blue pigment
KW - Mn-doped inorganic pigment
KW - Optical properties
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U2 - 10.1016/j.dyepig.2016.12.038
DO - 10.1016/j.dyepig.2016.12.038
M3 - Article
AN - SCOPUS:85006741792
SN - 0143-7208
VL - 139
SP - 344
EP - 348
JO - Dyes and Pigments
JF - Dyes and Pigments
ER -