By a News Reporter-Staff News Editor at Energy Weekly News -- Current study results on Solar Energy have been published. According to news reporting from Rome, Italy, by VerticalNews journalists, research stated, "Here we report a fundamental angle resolved study on bare dye solar cells, DSCs, and those coupled to two different prisms (hemi-cube and hemi-cylinder). The natural angular enhancement of incident photon-to-current conversion efficiency of DSCs is shown to further increase in the prisms case."
The news correspondents obtained a quote from the research from Sapienza University, "This is partially due to the higher external transmittance and mainly to the longer optical path, achieved thanks to the tilted surfaces and optical density of the coupling elements. Results suggest possible use of DSCs with thin active layers (below 10 mu m) and micrometric refractive prisms or nanometric diffraction gratings on the surface, compensating the incomplete light absorption by an enhanced optical path. A simplified yet robust angular refractive path model, which includes Fresnel reflection, Snell's refraction and Lambert Beer absorption, can clearly explain the results and predict enhancements at larger angles than the used ones. The angular photo-electronic measurements revealed also an elegant tool to retrieve a dispersion curve for the effective refractive index tiff (A) of such a complex and absorbing medium as the sensitized porous titania filled with electrolyte."
According to the news reporters, the research concluded: "Such information could be used in the design and simulation of different photon management structures, from the macroscopic size of 3D photovoltaics architectures to the micro-and nano-scale of anti-reflection, refractive or diffraction texturing."
For more information on this research see: Angular refractive path for optical enhancement and evaluation of dye solar cells. Solar Energy, 2013;98():553-560. Solar Energy can be contacted at: Pergamon-Elsevier Science Ltd, The Boulevard, Langford Lane, Kidlington, Oxford OX5 1GB, England. (Elsevier - www.elsevier.com; Solar Energy - www.elsevier.com/wps/product/cws_home/329)
Our news journalists report that additional information may be obtained by contacting L. Dominici, Roma La Sapienza University, Dept. of Basic & Appl Sci Engn, Mol Photon Lab, I-00161 Rome, Italy. Additional authors for this research include D. D'Ercole, T.M. Brown, F. Michelotti, A. Reale and A. Di Carlo.
Keywords for this news article include: Rome, Italy, Europe, Solar Energy
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