Use of surface plasmon-coupled emission for enhancing light transmission through Top-Emitting Organic Light Emitting Diodes

THIN SOLID FILMS

卷:516

Article

Wu, Xiaodong²  Chowdhury, Mustafa H.³  Geddes, Chris D.^1,3  Aslan, Kadir¹  Domszy, Roman²  Lakowicz, Joseph R.³  Yang, Arthur J. -M.² 

[1] Univ Maryland, Inst Biotechnol, Ctr Med Biotechnol, Inst Fluorescence,Lab Adv Med Plasmon, Baltimore, MD 21201 USA

[2] Ind Sci & Technol Network Inc, York, PA 17404 USA

[3] Univ Maryland, Sch Med, Ctr Med Biotechnol, Ctr Fluorescence Spect, Baltimore, MD 21201 USA

关键词: surface plasmon-coupled emission;    surface plasmons;    radiative decay engineering;    plasmon controlled fluorescence;    photoluminescence;    spontaneous emission;    stimulated emission;    organic light emitting diode;   

DOI  :  10.1016/j.tsf.2007.05.081

来源: Elsevier

【 摘 要 】

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. (C) 2007 Elsevier B.V. All rights reserved.

【 授权许可】

Free