Solar panels Created with a Record Energy Performance connected with 22%

Researchers at the Department connected with Electronic Engineering of the Universitat Politècnica de Catalunya (UPC) have obtained an increasing efficiency of 22% by manufacturing silicon solar cells that incorporate a walls treatment called black silicon close to front of the cell.

This technique nanostructures the surface with a dry chemical ravage that results in small conical pointers at the nanometric scale.

Incorporating charcoal silicon reduces the loss of energy a consequence of the reflectance of solar cells for almost zero. This significantly enhances the yield, by almost 4% vs traditional solar cells.

In fact , it is acknowledged black silicon because, at first glance, most of the treated surface is black (and does not reflect light), whereas homogeneous cells are blue. This supplemental improvement in efficiency would allow a real refrigerator, for example , to run for a time in a photovoltaic system composed of a real 5 m2 panel.

Solar cells will probably be main element of solar panels, which are affixed to capture sunlight and produce dart from it. Generally, to ensure that they replicate as little light as possible and thus ward off energy loss, solar cells are appointed using an alkaline bath that makes up a rough surface on which pyramids are randomly distributed.

This technique the actual cells thicker because it consumes a serious amount of silicon in the process. Black si, however , allows very thin si cells to be used, lowering production bills and saving silicon.

An added strengths achieved by researchers from the UPC and Aalto University in Finland is that, given the energy of black cells to capture photo voltaic energy radiation from lower angles, a good deal electricity can be generated during a greater the time period throughout the day compared with traditional which.

In Finland this feature is significant, because the sun shines from a minimal angle for most of the year and we expect it been demonstrated that cells made with charcoal silicon generate more electricity versus traditional cells that have the same a higher level efficiency.

According to the UPC researcher Pablo Ortega, "within about three to number of years it will be feasible to apply charcoal silicon in the solar panel industry factors market in general. "

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