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(a) Schematic diagram of solar cell structure with Au nanoparticle. (b) SEM image of -diameter Au nanoparticles deposited on device surface at a concentration of .
and power output curves for measured for reference diodes without Au nanoparticles (dashed lines), and for the same diodes after deposition of -diameter Au nanoparticles (solid lines). Short-circuit current density and maximum power increase by 8.1% and 8.3%, respectively, for devices incorporating Au nanoparticles.
Electromagnetic field amplitude distribution for a transverse electromagnetic wave at wavelength incident on a structure consisting of a -diameter Au sphere atop ITO and . Regions of high field amplitude are evident to the left of the particle (arising from the particle surface plasmon polariton resonance) and below the particle (arising from forward scattering of the incident wave).
Ratio of , integrated over the layer, for devices incorporating Au nanoparticles to that for reference devices without Au nanoparticles, as a function of particle density, computed for incident electromagnetic radiation at .
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