应用化学 ›› 2024, Vol. 41 ›› Issue (5): 607-615.DOI: 10.19894/j.issn.1000-0518.230296

• 稀土 •    下一篇

二元离子型配合物Eu(HFA)4TPP掺杂PMMA薄膜的合成及性能

王元, 李焕荣()   

  1. 河北工业大学化工学院,天津 300300
  • 收稿日期:2023-09-26 接受日期:2024-01-10 出版日期:2024-05-01 发布日期:2024-06-03
  • 通讯作者: 李焕荣
  • 基金资助:
    国家自然科学基金(22175053);河北省中央引导地方科技发展资金项目(206Z1401G)

Preparation and Properties of Europium() Tetrakis(Hexafluoroacetylacetone) Complex with Tetraphenylphosphonium as Counter Ion Doped into Polymethyl Methacrylate Films

Yuan WANG, Huan-Rong LI()   

  1. School of Chemical Engineering,Hebei University of Technology,Tianjin 300130,China
  • Received:2023-09-26 Accepted:2024-01-10 Published:2024-05-01 Online:2024-06-03
  • Contact: Huan-Rong LI
  • About author:lihuanrong@hebut.edu.cn
  • Supported by:
    the National Natural Science Foundation of China(22175053);the Central Government Guides Local Science and Technology Development Fund Projects(206Z1401G)

摘要:

报道了一种光稳定性较好且高发光效率的二元离子型配合物Eu(HFA)4TPP(HFA=六氟乙酰丙酮,TPP=四苯基膦),通过对比Eu(HFA)4Na和Eu(HFA)4TPP配合物的晶体结构和荧光性能,研究其构效关系,揭示了TPP+对配合物发光性能的影响机理。在此基础上,进一步将Eu(HFA)4TPP以高掺杂含量的思路与PMMA结合制备了相应的发光薄膜,Eu(HFA)4TPP受聚甲基丙烯酸甲酯(PMMA)高分子链的包裹和挤压作用,有效扩展了激发光谱范围(240~450 nm),且薄膜的量子效率高达60.54%。并以此为主体构筑了以Eu(HFA)4TPP/PMMA发光薄膜为主体的荧光太阳能聚光器(LSC),在几何聚光比G=1.87的情况下,Eu(HFA)4TPP/PMMA薄膜对LSC光学转换效率贡献值为0.95%,在光伏领域具有潜在的应用前景。

关键词: 稀土配合物, 发光薄膜, 光稳定性, 可见光激发, 荧光太阳能聚光器

Abstract:

In this paper, the complex Eu(HFA)4TPP (HFA=Hexafluoroacetylacetone, TPP=tetraphenylphosphonium) with high photoluminescence quantum yield and improved stability is prepared. The steric effect on luminescence performance is revealed by studying the crystal structures and luminescence properties of Eu(HFA)4Na and Eu(HFA)4TPP complexes. On this basis, the luminescent films are obtained by incorporating Eu(HFA)4TPP complex with high loading content into polymethyl methacrylate (PMMA) matrix, which shows a visible-light excitation window (240~450 nm) and high photoluminescence quantum yield of 60.54%. In addition, the luminescent solar concentrators (LSC) in Eu(HFA)4TPP/PMMA film conformation is prepared. The optical conversion efficiency contribution of Eu(HFA)4TPP/PMMA film to the LSC is 0.95% in the case of the G=1.87, holding promise in photovoltaic fields.

Key words: Lanthanide complexes, Luminescent films, Photo stability, Visible-light excitation, Luminescent solar concentrators

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