Data di Pubblicazione:
2017
Citazione:
Improving optical absorption in a-Si thin films with TiO2 Mie scatterers / G. Giannakoudakis, M. Di Vece. - In: THE EUROPEAN PHYSICAL JOURNAL. D, ATOMIC, MOLECULAR AND OPTICAL PHYSICS. - ISSN 1434-6060. - 71:4(2017), pp. 1-6. [10.1140/epjd/e2017-70570-7]
Abstract:
To increase the optical absorption in very thin a-Si films is relevant for more efficient and
inexpensive photovoltaics. In this work we deposited TiO2 particles with a gas aggregation source on top
of a-Si thin films and study the effect on optical absorption. When using thin films, anti-reflection and
enhanced-reflection occurs depending on the thickness, which was employed in this study. The experiments
were compared with finite difference time domain (FDTD) simulations which yielded good agreement. Both
increased and decreased optical absorption was measured, depending on the photon energy range. This
work demonstrates that by tailoring the various parameters, the TiO2 particles can contribute to increasing
the efficiency of an a-Si based solar cell.
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
Clusters and Nanostructures
Elenco autori:
G. Giannakoudakis, M. Di Vece
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