| Authors: | H. Shen, P. Bienstman, B. Maes | | Title: | Plasmonic absorption enhancement in organic solar cells with thin active layers | | Format: | International Journal | | Publication date: | 10/2009 | | Journal/Conference/Book: | Journal of Applied Physics
| | Volume(Issue): | 106(7) p.073109 | | DOI: | 10.1063/1.3243163 | | Citations: | 210 (Dimensions.ai - last update: 15/12/2024)
119 (OpenCitations - last update: 3/5/2024)
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Abstract
The influence of silver nanoparticles on light absorption in organic solar cells based on
poly3-exylthiophene:6,6-phenyl-C61-butyric-acid-methyl ester is studied by means of finite
element method simulations. The metallic nanoparticles are embedded directly inside the active
layer. We investigate the enhancement mechanism and the influence of factors such as the spacing
between neighboring nanoparticles, the particle diameter, and the coating thickness. The plasmonic
resonance of the particles has a wideband influence on the absorption, and we observe a rich
interaction between plasmonic enhancement and the absorption characteristics of the active layer
material. An enhancement with a factor of around 1.56 is observed for nanoparticles with a diameter
of 24 nm and a spacing of 40 nm, bringing the structure to the absorption level of much thicker
active layers without nanoparticles. In addition, a significant effect of the particle coating thickness
is observed. |
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