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Updated: Jul 16, 2025
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Low-energy Cathodoluminescence for OxyNitride Phosphors
Published on: November 15, 2016
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颜色可控制的无机颜料,具有Ce3+作为颜色源
Kazuki Yamaguchi1, Yusuke Shobu2, Ryohei Oka3
1Department of Chemistry and Biotechnology, Faculty of Engineering, and Center for Research on Green Sustainable Chemistry, Tottori University, 4-101, Koyama-cho Minami, Tottori 680-8552, Japan.
Inorganic chemistry
|September 13, 2023
概括
使用固态反应开发出环保的红色无机颜料. 通过控制Ce3+周围的水晶场及其度,可以调整Ba2RE1-Ce6色素的颜色.
科学领域:
- 材料科学 材料科学 材料科学
- 无机化学 无机化学 有机化学
- 固态化学 固态化学
背景情况:
- 新型无机颜料的开发对各种行业至关重要.
- 双矿结构为先进材料提供可调节的特性.
- 在宿主中使用 (Ce3+) 可以诱导理想的光学特性.
研究的目的:
- 根据Ba2RE1-Ce系统合成环保的红色无机颜料.
- 为了研究Ce3+晶体场环境与产生的颜料颜色之间的关系.
- 通过控制Ce3+度和晶体场强度来调整色素颜色的方法.
主要方法:
- 传统的固态反应方法用于颜料合成.
- 瑞特维尔德精炼分析以确定晶体结构和结合长度.
- 谱分析以将Ce3+吸收与颜色特性相关联.
主要成果:
- 成功合成了Ba2RE1-CeTaO6 (RE=La,Gd,Y) 的单相固体溶液.
- 平均RE-O键长度的减少导致Ce3+周围的更强的晶体场,颜色从色转变为红色,粉色和紫色.
- 颜料颜色,特别是色调角 (h°),与RE3+位点的加权平均离子半径 (rRE) 呈现出大致线性关系.
- 对Ba2La0.5-YCe0.5TaO6的控制合成证实了具有高颜色和 (C值) 的更红色色调的能力.
结论:
- Ba2RE1-CeTaO6系统是开发可调节,环保无机颜料的有希望的主机.
- 在Ce3+周围控制晶体场强度和/或其度,可以精确调整光学吸收和颜料颜色.
- 这项研究为设计新型无机颜料提供了一条途径,用于各种应用,具有理想的红色色调.
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