O. Isabella
412 records found
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Authored
Diffusive dielectric materials such as white paint have been demonstrated as effective back reflectors in the photovoltaic technology. In this work, a one-dimensional 1D optical modeling approach for simulation of white paint films is developed and implemented in a 1D optical sim
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In this work, we investigate the concept of transparent conductive oxide (TCO)/white paint (WP) back reflectors as an alternative to the conventional textured metal-based reflectors in thin-film silicon solar cells. The optical characterisation results show that WP back reflector
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We present modulated surface textures on glass substrates for improved light trapping in thin-film silicon solar cells. The surface morphology, the roughness spectral distribution, and the scattering properties of the modulated surface-textured substrates were characterized. We d
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Diffusive dielectric materials such as white paint have been demonstrated as effective back reflectors in the photovoltaic technology. In this work, a one-dimensional (1D) optical modeling approach for simulation of white paint films is developed and implemented in a 1D optical s
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Photon management is one of the key issues for improving the performance of thin-film silicon solar cells. An important part of the photon management is light trapping that helps to confine photons inside the thin absorber layers. At present light trapping is accomplished by the
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Optical analysis of hydrogenated amorphous silicon (a-Si:H) solar cells with a periodic texture applied to the interfaces was carried out by two-dimensional optical simulator. The optical simulator solves the electromagnetic wave equations by means of finite element method using
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Substrates with a modulated surface texture were prepared by combining different interface morphologies. The spatial frequency surface representation method is used to evaluate the surface modulation. When combining morphologies with appropriate geometrical features, substrates e
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In thin-film silicon photovoltaic technology light management is important for achieving high efficiency of solar cells. Advanced light trapping techniques have to be employed to boost the solar cell efficiencies further. In this contribution we investigate the following advanced
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Light trapping in state-of-the-art thin-film silicon solar cells is accomplished by scattering of light at rough interfaces. Further enhancement of light absorption in the absorber layers can be achieved by optimizing the scattering via designing the morphology of these interface
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Multilayer (ML) structures were fabricated by alternating deposition of hydrogenated amorphous silicon (a-Si:H) and amorphous silicon nitride (a-SiNx:H) using plasma enhanced chemical vapour deposition. The ML structures were grown with and without hydrogen dilution of the source
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One-dimensional photonic crystals having desired broad region of high reflectance (R) were fabricated by alternating the deposition of amorphous silicon and amorphous silicon nitride layers. The effect of the deposition temperature and angle of incidence on the optical properties
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