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无机材料学报

无机材料学报 ›› 2010, Vol. 25 ›› Issue (12): 1303-1306.DOI: 10.3724/SP.J.1077.2010.01303 CSTR: 32189.14.SP.J.1077.2010.01303

• 研究论文 • 上一篇    下一篇

掺杂氧化铬颜料的红外反射特性研究

张 捷1, 2, 魏子栋1, 2, 王春辉3, 卞 鹏3, 翁小龙3   

  1. (重庆大学 1. 输配电装备及系统安全与新技术国家重点实验室, 化学化工学院; 2. 材料科学与工程学院, 重庆 400044; 3. 电子科技大学 电子薄膜与集成器件国家重点实验室, 微电子与固体电子学院, 成都 610054)
  • 收稿日期:2010-03-18 修回日期:2010-07-05 出版日期:2010-12-20 网络出版日期:2010-11-24
  • 基金资助:

    国家自然科学基金(60877062)

Near Infrared Reflectance of the Doped Cr2O3 Pigment

ZHANG Jie1,2, WEI Zi-Dong1,2, WANG Chun-Hui3, BIAN Peng3, WENG Xiao-Long3   

  1. (1. The State Key Laboratory of Power Transmission Equipment & System Security and New Technology, School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China; 2. School of Material Science and Engineering, Chongqing University, Chongqing 400044, China; 3. State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Microelectronics and Solid-State Electronics, University of Electronic Science and Technology of China, Chengdu 610054, China)
  • Received:2010-03-18 Revised:2010-07-05 Published:2010-12-20 Online:2010-11-24
  • Supported by:

    National Nature Science Foundation of China (60877062)

PDF (PC)

2097

被引次数

46 | 8

摘要： 采用固相合成工艺, 制备了铁掺杂、钛掺杂及铝/钛二元掺杂三类Cr2O3颜料, 利用XRD、紫外/可见/近红外分光光度计、Color CIE色度分析软件等方法对颜料物相结构、可见/近红外反射率、颜色参数等进行了测试和表征, 初步探讨了Cr2O3颜料结构与近红外反射率、颜色之间的相互关联. 结果表明, 所有样品均呈单相刚玉结构, 但结晶强度和晶粒大小随掺杂元素有所差异; 相比未掺杂Cr2O3颜料, 掺铁样品的近红外反射率出现下降, 而掺钛Cr2O3颜料的反射率则明显提高, 其中铝/钛二元掺杂样品在Al(OH)3含量3.4wt%、TiO2含量1.07wt%时, 实现700~2500nm波段平均反射率87%, 2500nm处最大反射率99%. 掺钛Cr2O3材料近红外波段反射率的显著增加, 主要归因于掺钛Cr2O3晶粒尺寸的增大以及Cr3+局域电子环境的改变.

关键词: Cr2O3, 颜料, 掺杂, 近红外反射率

Abstract: Fe, Ti and Al-Ti binary-doped Cr2O3 pigments were prepared by solid-phase synthesis process. The phase structure, visible / near-infrared reflectance (NIR), color parameters were tested and characterized by X-ray diffraction (XRD), UV/VIS/NIR spectroscopy, Color CIE Chromaticity analysis software. The correlation between NIR reflectance, color and pigment structure features of doped Cr2O3 pigments was initially discussed. The results showed that all doped Cr2O3 had a single-phase corundum structure. However their grain sizes varied with doped elements relative to the undoped Cr2O3. It was found that the NIR of doped Cr2O3 decreased with adulteration of Fe but increased significantly with adulteration of Ti. For Al/Ti binary-doped Cr2O3 pigment with composition of 3.4wt% Al(OH)3 and 1.07wt% TiO2, the average reflectance in the wavelengths ranging from 700-2500 nm and maximum reflectance at 2500nm were 87.5% and 99%, respectively. The significant NIR enhancement of Ti-doped Cr2O3 was attributed to its larger grain size and change of Cr3+ local electronic environment.

Key words: Cr2O3, pigment, dope, NIR reflectance

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