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In this paper we present a quick and easy method for producing relatively large areas of substrate that enhance the Raman effect, using standard semiconductor processing techniques such as reactive ion etching of silicon and electron beam metal deposition. As standard cleanroom processes are used, it is possible to narrowly control the parameters of the fabrication process to create silicon nano-pillars...
The potential benefits of using nanomaterials in PV manufacture triggered a recent surge of research and development in this area. Nevertheless, the environmental- and health-implications of using them are not delineated fully. In this study, we present and discuss the potential life-cycle energy uses and hazards of three photovoltaic (PV) designs based on nanotechnology, i.e., multi-junction amorphous...
Recently, great attention has been put on the possible applications of nanotechnology in photovoltaics. Here, we report room temperature growth of large area black silicon surface consisting of silicon nanowires (SiNWs) array with reflectivity reduced to < 4% in the entire spectral range (300-1000 nm) of interest for solar cells and fabrication of solar cell (n+pp+ structure) on such "black...
Silicene, a monolayer of silicon atoms packed into a two-dimensional honeycomb lattice is the challenging hypothetical reflection in the silicon realm of graphene, a one-atom thick graphite sheet, presently the hottest new material in condensed matter physics and nanotechnology. If existing, it would also reveal a cornucopia of new physics and potential applications. Here, we reveal the catalytic...
We present a simple method to fabricate large area of silicon nanowires array with low-cost and throughput by a catalytic electrochemical etching process. In our experiment, a thin layer of polyelectrolyte (PAH) was used to absorb negatively charged PS sphere. Using the PS sphere as mask, the silicon nanowires arrays were fabricated by a silver catalytic electrochemical etching process. By SEM and...
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