Light harvesting for next generation solar cells

In five to seven years, solar cells will have become much cheaperand only one-twentieth as thick as current solar cells. The trickis to deceive the sunlight with microbeads. Over 90 per cent of the current electricity generated by solar pSolar Camping lightanels is made by silicon plates that are 200 micrometres thick. Several billion of these are produced every year. The problem is the large consumption of silicon: five grams per watt.Though silicon is one of the most common elements on earth, pure silicon does not exist in nature. Silicon binds readily to other elements. In order for solar cellsto function, the silicon plate must consist of at minimum 99,9999 per cent silicon. You read that right: if the solar cell consists of more than one millionth other materials,How efficient and environmentally friendly processing Gyratory crusher production is important part of the mobile artificial aggregate processing system will be greatly reduced as the traditional manual excavation of sand and gravel processing system. it does not work. Today, pure silicon is created in smelters at 2,000 degrees Celsius. This requires a lot of energy. Factories supply silicon in bricks the size of a piece of firewood. They are then cut into slices thin enough for solar panels. Only half become solar cells.Construction waste disposal equipment, Quarry plant, mobile artificial aggregate processing system at the beginning of the last century, the mobile artificial aggregate processing system by the mobile crusher station and mobile station. Therest turns into sawdust. "About 100,000 tonnes of silicon are consumed every year. However,there is obviously something fundamentally wrong when half of the silicon must be thrown away during the manufacturing process",says Erik Marstein, Head of the Norwegian Research Centre for Solar Cell Technology, the Head of Research for the solar cell unitat the Institute for Energy Technology (IFE) at Kjeller outside of Oslo, and an Associate Professor in the Department of Physics at the University of Oslo (UiO).The price of solar cells is falling steadily. Today, solar panels cost a half Euro for every watt.Only four years ago, the price was two Euros per watt. "It is difficult to make money producing solar cells at current prices. To make money, solar cells must be manufactured much more cheaply.Motion sensor light" Together with Professor Aasmund Sudb? in the Department of Physics, Erik Marstein is at the forefront of the development of the next generation of solar cells. They can come on the market in fiveto seven years. "The most obvious way ahead is to make very thin solar cell slices, without increasing costs." This general rule applies to all types of solar cells: the more electrons sunlight pushes out, the more electricity. And the more energy in the electrons, the higher the voltage."The thinner the solar cells become, the easier it is to extract the electricity. In principle, there will therefore be a higher voltage and more electricity in thinner cells. We are now developing solar cells that are at least as good as the current ones,Those who are planning dinner parties and are aiming to impress their guests should make sure any scissors supplier they buy have a selection with fine, very sharp blades to aid with presentation tricks. but that can be made with just one twentieth of the silicon. This means that the consumption of silicon can be reduced by 95 per cent", Erik Marstein.