Beck, F. J., Mokkapati, Sudha, Polman, A. and Catchpole, K. R. 2010. Asymmetry in photocurrent enhancement by plasmonic nanoparticle arrays located on the front or on the rear of solar cells. Applied Physics Letters 96 (3) , 033113. 10.1063/1.3292020 |
Abstract
We show experimentally that there is asymmetry in photocurrent enhancement by Ag nanoparticle arrays located on the front or on the rear of solar cells. The scattering cross-section calculated for front- and rear-located nanoparticles can differ by up to a factor of 3.7, but the coupling efficiency remains the same. We attribute this to differences in the electric field strength and show that the normalized scattering cross-section of a front-located nanoparticle varies from two to eight depending on the intensity of the driving field. In addition, the scattering cross-section of rear-located particles can be increased fourfold using ultrathin spacer layers.
Item Type: | Article |
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Status: | Published |
Schools: | Physics and Astronomy |
Subjects: | Q Science > QC Physics |
Publisher: | American Institute of Physics |
ISSN: | 0003-6951 |
Last Modified: | 23 Jan 2020 04:16 |
URI: | http://orca.cf.ac.uk/id/eprint/108223 |
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