Journal
NANOTECHNOLOGY
Volume 23, Issue 8, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0957-4484/23/8/085202
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Funding
- Villum Foundation
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This paper investigates the improved photo-current response obtained by depositing Al nanoparticles on top of a Si diode. Well defined Al nanodiscs with a diameter and height of 100 nm are produced on the surface of a Si diode using electron-beam lithography, and the change in photo-current generation is characterized. A blue shift of the photo-current response is demonstrated, substantially improving the relation between gains and losses compared to what is typically observed in similar schemes using Ag nanoparticles. Enhanced photo-current response is observed in diodes with Al particles on the surface at all wavelengths larger than approximate to 465 nm, thereby minimizing the losses in the blue range usually reported with Ag nanoparticles on the surface.
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