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  • 博士生导师
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  • 所在单位:材料科学与技术学院
  • 职务:江苏省能量转换材料与技术重点实验室副主任
  • 学历:博士研究生毕业
  • 办公地点:南京航空航天大学将军路校区西区材料学院大楼D10-B317
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  • 联系方式:18913854729
  • 学位:理学博士学位
  • 职称:研究员
  • 主要任职:江苏省真空学会常务理事-江苏省光伏科学与工程协同创新中心副理事长-南京市可再生能源学会副理事长
  • 其他任职:亚太材料科学院院士 (2013年10月)
  • 毕业院校:中国科学院上海冶金研究所
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Highly luminescent up/down conversion thin films prepared by a room temperature process
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  • 所属单位:材料科学与技术学院
  • 发表刊物:THIN SOLID FILMS
  • 关键字:Up/down conversion Nanoparticles Conversion film Transparent film Adhesion
  • 摘要:Efficient up/down conversion (UC/DC) thin films with high transmittance were prepared by an anisole dissolved polymethyl methacrylate (PMMA) solution mixed with beta-NaYF4: 5% Er, 10% Yb (UCNPs) and beta-NaYF4: 10% Tb, 1% Yb (DCNPs) nanocrystals, which required no postdeposition heat treatment. The full embedment of nanoparticles in the PMMA matrix was confirmed by atomic force microscopy, and the films were dense and uniform with high transmittance. Both UCNPs and as-prepared films exhibited strong UC emission bands in the green and red region. The relative intensities of green to red emissions in the films were enhanced compared with UCNPs because of the surface passivation by PMMA. Under excitation of 355 nm laser, both DCNPs and as-prepared films exhibited down conversion luminescence and no obvious intensity difference was observed between nanoparticles and the films. By tape test, the conversion films were proved with a strong adhesion due to the protection of PMMA. The results suggested that PMMA is a good matrix for fabrication of efficient UC/DC films with high transmittance and good adhesion.
  • ISSN号:0040-6090
  • 是否译文:
  • 发表时间:2019-08-01
  • 合写作者:Yao, Hanyu
  • 通讯作者:沈鸿烈
  • 发表时间:2019-08-01