Key Laboratory of Micro-nano Measurement-Manipulation and Physics, Department of Physics, Beijing University of Aeronautics and Astronautics, Beijing, China.
J Colloid Interface Sci. 2011 Apr 1;356(1):63-8. doi: 10.1016/j.jcis.2010.12.078. Epub 2011 Jan 3.
In this work, we present a facile approach on the remarkable enhancement of fluorescent signal by heterostructure colloidal photonic crystals (PCs) with dual stopbands. The intensity of fluorescent medium on heterostructure PCs with dual stopbands overlapping the excitation wavelength and the emission wavelength of fluorescent medium can be up to 162-fold enhancement in comparison to that on the control sample. Otherwise, parameters of heterostructure PC films such as film thickness or stacking order have important effects on fluorescent signals. The method will be of great significance for developing the highly sensitive fluorescence-based detection.
在这项工作中，我们提出了一种简便的方法，通过具有双阻带的杂化胶体光子晶体（PCs）显著增强荧光信号。与对照样品相比，在具有与荧光介质的激发波长和发射波长重叠的双阻带的杂化 PCs 上，荧光介质的强度可高达 162 倍增强。此外，杂化 PC 薄膜的参数（如薄膜厚度或堆叠顺序）对荧光信号有重要影响。该方法对于开发高灵敏度的荧光检测具有重要意义。
