Researchers have a fotovolta lwa of cell developed for glass can be placed. The ‘solar panels’ are almost transparent and would be easy to produce. The researchers knew the rate of return to double compared to previous prototypes.
The photovoltaic cells, the basic building blocks of solar panels, in a simplified form have already been developed. The same team of the American university UCLA has announced, however, the efficiency of the transparent solar cells are almost to have doubled. The first variant got a return of about four percent, but the new version achieves a maximum efficiency of 7.3%.
That higher return was achieved by not a single layer, but two layers of solar cells to use. Each layer consists of a transparent, organic photovoltaic layer, separated by a layer of material as the electrolyte. The solar cells are constructed with organic materials, which are at a relatively low temperature should be processed. That reduces the cost for the production.
When two transparent layers are used, the solar cells have an efficiency of 6.4 percent. However, when one of the layers slightly greyer appearance and more light it absorbs, the reported 7.3 percent achieved. The maximum for this configuration would be approximately a 10 percent return on investment. The solar cells would be coated on or in windows can be used to generate energy. The color of the cells would have to be modified to the architecture of the building.