High refractive index glasses are preferred in integrated photonics applications to realize higher integration scale of passive devices. With a refractive index that can be tuned between SiO2 (1.45) ...and a-SiC (3.2), silicon oxycarbide SiOC offers this flexibility. In the present work, silicon oxycarbide thin films from 0.1 – 2.0 μm thickness are synthesized by reactive radio frequency magnetron sputtering a silicon carbide SiC target in a controlled argon and oxygen environment. The refractive index n and material extinction coefficient k of the silicon oxycarbide films are acquired with variable angle spectroscopic ellipsometry over the UV-Vis-NIR wavelength range. Keeping argon and oxygen gases in the constant ratio, the refractive index n is found in the range from 1.41 to 1.93 at 600 nm which is almost linearly dependent on RF power of sputtering. The material extinction coefficient k has been estimated to be less than 10-4 for the deposited silicon oxycarbide films in the visible and near-infrared wavelength regions. Morphological and structural characterizations with SEM and XRD confirms the amorphous phase of the SiOC films.
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IZUM, KILJ, NUK, PILJ, PNG, SAZU, UL, UM, UPUK
Coloring c-Si PV cells: A new structure Bernasconi, Giancarlo; Brofferio, Sergio; Cristaldi, Loredana ...
2016 IEEE International Instrumentation and Measurement Technology Conference Proceedings,
05/2016
Conference Proceeding
Colored c-Si PV cells or modules will allow a wider spread of Building Integrated Photovoltaic (BIPV) both on traditional roofs and on building facades. A few commercial products range from mono or ...multi crystalline colored PV cells to colored front protecting glasses. In this paper a new colored PV cell structure based on c-Si PV cells is presented and analyzed. Comparison with the simulations of other implemented solutions is also presented and discussed.
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