Wu Xiaodong, Chowdhury Mustafa H, Geddes Chris D, Aslan Kadir, Domszy Roman, Lakowicz Joseph R, Yang Arthur J-M
Industrial Science and Technology Network Inc., 2101 Pennsylvania Avenue, York, PA, 17404, USA.
Center for Fluorescence Spectroscopy, Medical Biotechnology Center, University of Maryland School of Medicine, 725 West Lombard Street, Baltimore, MD, 21201, USA.
Thin Solid Films. 2008 Feb 29;516(8):1977-1983. doi: 10.1016/j.tsf.2007.05.081. Epub 2007 Jun 13.
In this paper, we perform surface plasmon-coupled emission studies on Rhodamine 6G molecules embedded in a corrugated structure of a thin film composed of fluorinated silica particles, and a binding medium. Our results show enhancements of photoluminescence due to surface corrugation. By varying the size of the fluorinated silica nanoparticles we were able to control the surface correlation length scale of the corrugated surface structure. It was found that the coupling efficiency of the directional light emission is strongly correlated to the surface morphology, particularly the surface correlation length, of the corrugated dielectric structure. This substantial enhancement of signal could potentially be utilized in Organic Light Emitting Diode devices to enhance the light emission and transmission through a thin silver layer which can also serve as the cathode in Top-Emitting Organic Light Emitting Diodes.
在本文中，我们对嵌入由氟化二氧化硅颗粒和一种结合介质组成的薄膜波纹结构中的罗丹明6G分子进行了表面等离子体耦合发射研究。我们的结果表明，由于表面波纹，光致发光得到了增强。通过改变氟化二氧化硅纳米颗粒的尺寸，我们能够控制波纹表面结构的表面相关长度尺度。结果发现，定向光发射的耦合效率与波纹介电结构的表面形态，特别是表面相关长度密切相关。这种信号的显著增强有可能用于有机发光二极管器件，以增强光发射并通过一层薄银层进行传输，该银层也可作为顶部发射有机发光二极管的阴极。
