| Development of novel inorganic Mn5+-doped BiCa2VO6 vivid green pigments: its crystal structure and color properties |
| Young Ji Park1,2, Tae Wook Kang1, Younki Lee3, Byungseo Bae4, Sun Woog Kim1 |
1Advanced Materials Convergence R&D Division, Display Material Center, Korea Institute of Ceramic Engineering and Technology, Jinju, 5281, Republic of Korea
2Department of Materials Science and Engineering, Gyeongsang National University, Jinju, 52828, Republic of Korea
3Department of Materials Engineering and Convergence Technology, Gyeongsang National University, Jinju, 52828, Republic of Korea
4Advanced Resources Team, Yeongwol Industrial Promotion Agency, 21-28 Palgoe 1 Nonggongdanji, Yeongwolgun, 26240, Republic of Korea |
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Received: February 27, 2024; Revised: July 23, 2024 Accepted: July 29, 2024. Published online: August 19, 2024. |
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| ABSTRACT |
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Novel vivid green inorganic pigments BiCa2VO6 (0 ≤ x ≤ 0.2) were synthesized through a conventional solid-state reaction method. The properties of pigments were investigated by X-ray diffraction (XRD), scanning electronic microscopy (SEM), UV–visible absorbance spectra, and X-ray photoelectron spectroscopy (XPS). The BiCa2(V1-xMnx)O6 (0 ≤ x ≤ 0.2) pigments prepared in this study exhibited orthorhombic structure with space group Ccm21 as main phase. The Mn5+ doped BiCa2VO6 pigments showed strong optical absorption in the yellow–red light regions due to the Mn5+ d–d transitions, which is the origin of the green color. Among these pigments, the BiCa2V0.97Mn0.03O6 showed the most vivid green color and the L*, a*, and b* values are 58.79, − 23.88, and 12.18, respectively. |
| Key words:
Color · Powders: solid-state reaction |
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