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Light scattering from ZnO nanorods (NR) is investigated, modeled, and applied to a solar cell. ZnO NR (120–1300 nm long, 280–60 nm large), grown by low-cost chemical bath deposition at 90 °C, exhibit diffused-to-total transmitted light as high as 70% and 30% in the 400 and 1000 nm wavelength range, respectively. Data and scattering simulation show that ZnO NR length plays a crucial role in light diffusion effect. A transparent ZnO NR film grown on glass and placed on top of a 1 μm thick c-Si solar cell is shown to enhance the light-current conversion efficiency for wavelengths longer than 600 nm.
AIP Publishing LLC
Publication date: 
5 Jan 2015

Vicky Strano, E Smecca, Valerie Depauw, Christos Trompoukis, A Alberti, R Reitano, Isodiana Crupi, Ivan Gordon, S Mirabella

Biblio References: 
Volume: 106 Issue: 1 Pages: 013901
Applied Physics Letters