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| Hauptseite > Publikationsdatenbank > Enhanced infrared response of ultra thin amorphous silicon photosensitive devices with Ag nanoparticles |
| Hauptseite > Publikationsdatenbank > Enhanced infrared response of ultra thin amorphous silicon photosensitive devices with Ag nanoparticles |
| Journal Article | PreJuSER-11275 |
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2009
Elsevier
Amsterdam [u.a.]
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Please use a persistent id in citations: doi:10.1016/j.tsf.2009.02.060
Abstract: Small silver (Ag) nanoparticles (with diameter smaller than 50 nm) can lead to a resonant light absorption accompanied by an enhanced electromagnetic field in their vicinity when they are irradiated by light due to so-called localized surface plasmon. In order to study the influence of metal nanoparticles in thin-film silicon solar cells in more detail, a photosensitive test structure based on a-Si:H and consisting of a TCO/(nanoparticles)/i/n/TCO layer stack was realized. A higher quantum efficiency of the test structure is achieved for wavelengths longer than 800 nm compared to the structure without nanoparticles. As a-Si:H only efficiently absorbs light for wavelenghts of up to 800 nm, the enhanced photocurrent cannot be explained by improved light absorption in a-Si:H. (C) 2009 Elsevier B.V. All rights reserved.
Keyword(s): J ; Silver nanoparticles (auto) ; Localized surface plasmon (auto) ; a-Si:H (auto) ; Solar cell (auto)
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