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The spatioselective functionalization of silicon microwires with axial p/n junctions is achieved using the electronic properties of the junction. (Photo)electrochemical deposition of metals is demonstrated at the bottom and top of the wires in the dark and light, respectively. The junction depletion layer remains unmodified, which allows its visualization and comparison with theoretical calculations...
Silicon is one of the main components of commercial solar cells and is used in many other solar‐light‐harvesting devices. The overall efficiency of these devices can be increased by the use of structured surfaces that contain nanometer‐ to micrometer‐sized pillars with radial p/n junctions. High densities of such structures greatly enhance the light‐absorbing properties of the device, whereas the...
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