Page 86 - 《精细化工》2023年第5期

第 40 卷第 5 期 精 细 化 工 Vol.40, No.5
20 23 年 5 月 FINE CHEMICALS May 2023

功能材料
RhB-PEGDA/ETPTA 光子晶体复合膜对 RhB

的荧光偏振性能调控

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王 玉，吴 越，武素丽
（大连理工大学 精细化工国家重点实验室，辽宁 大连 116024）

摘要：将含有罗丹明 B（RhB）的聚乙二醇二丙烯酸酯（PEGDA）和乙氧基化三羟甲基丙烷三丙烯酸酯（ETPTA）
混合物与 SiO 2 光子晶体进行复合，制备了 RhB-PEGDA/ETPTA 光子晶体复合膜（简称复合膜）。通过反射光谱、
荧光光谱对复合膜的光学性能进行了测试，研究了光子晶体特性对 RhB 荧光偏振性能的调控。结果表明， RhB
空白膜的荧光偏振态是部分椭圆偏振态；当复合膜的光子带隙（PBG）与其发射峰波长（595 nm）匹配时，成
功实现了对出射荧光偏振态的调控；当光子晶体层厚度为 6.94 μm 时，荧光偏振调控效果最好，荧光各向异性
值（r）为 0。当复合膜的 PBG 与激发波长（555 nm）匹配时，r 为 0.082；与发射峰红带边缘波长（665 nm）
匹配时，r 为 0.12；与发射峰波长不相关（730 nm）时，r 为 0.16。由此可见，只有适当 PBG 的复合膜才会对
RhB 的荧光偏振态产生调控作用。
关键词：光子晶体；反蛋白石；光子带隙；荧光偏振；发光调控；功能材料
中图分类号：TB34；O734 文献标识码：A 文章编号：1003-5214 (2023) 05-1006-09

Regulation of fluorescence polarization of RhB by RhB-
PEGDA/ETPTA photonic crystal composite films

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WANG Yu, WU Yue, WU Suli
（State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, Liaoning, China）

Abstract: RhB-PEGDA/ETPTA photonic crystal composite films were synthesized by compounding SiO 2
photonic crystals with a mixture of polyethylene glycol diacrylate (PEGDA) and ethoxylated
trimethylolpropane triacrylate (ETPTA) containing Rhodamine B (RhB). The composite films were then
characterized by reflection spectrum and fluorescence spectrum for optical property analysis, followed by
investigation on the RhB fluorescence polarization regulation performance. The results showed that RhB
alone blank film had fluorescence elliptical polarization. When the photonic bandgap (PBG) of the photonic
crystal composite film exactly matched its emission peak wavelength (595 nm), the polarization state of the
emitted light was regulated successfully. And the fluorescence polarization regulation effect reached the
best with the polarization anisotropy value (r) of 0 when the thickness of the photonic crystal layer was 6.94
μm. The r was 0.082 when the PBG of the photonic crystal composite film matched its excitation
wavelength (555 nm), while the r was 0.12 when that matched red band edge of the emission peak (665 nm),
and r was 0.16 when that did not match the emission peak wavelength (730 nm). All these results indicated
that the composite film with suitable PBG could regulate the polarization state of fluorescence.
Key words: photonic crystals; inverse opal; photonic band gap; fluorescence polarization; luminescence
regulation; functional materials

收稿日期：2022-08-06; 定用日期：2022-11-23; DOI: 10.13550/j.jxhg.20220734
基金项目：国家自然科学基金（22178047、21878042）；中央高校基本科研业务费专项资金（DUT20ZD222、DUT22LAB610、DUT19TD28）；
大连市科技创新基金（2020JJ26GX046）；大连高层次人才创新支持计划（2019RD06）；辽宁人才振兴计划项目（1801006）
作者简介：王 玉（1997—），女，硕士生，E-mail：2020yuwang@mail.dlut.edu.cn。联系人：武素丽（1972—），女，教授，E-mail：
wusuli@dlut. edu.cn。