Flexible solar panels based on thin-film solar cells made from cheap raw materials.
The technology is awaiting funding!
Flexible solar panels based on thin-film solar cells are made from a hybrid metal-organic compounds – perovskite, which can convert the energy of sunlight into electric with an efficiency above 15%, with the planned indicators more than 20%.
A significant disadvantage of the existing traditional technology of production of solar cells is its high cost due to high-tech, energy-intensive and toxic production of silicon, which is characterized by low flexibility, fragility and heavy weight of the panels, which greatly narrows the range of its application.
Metal-organic perovskites as a class of compounds, is a revolution in materials for optoelectronics and solar energy. His feature in the new mechanism of conversion of solar energy into electric with high efficiency, and cheapness and ease of production.
The crystals of perovskite was discovered in 1839 in the southern Urals. Their unusual crystal structure of type ABX3, where A — is an organic molecule (e.g. methyl amine), B is a metal (Pb or Sn), and X is a halogen (I, Br, Cl), named after Russian mineralogist Lev perovski, who discovered the first one of their species.
Today perovskites for the production of photovoltaic elements are synthesized from simple and affordable chemical elements, like iodine, ammonium salts, boron, lead.
– the active layers of these solar cells can be applied from aqueous solutions on thin and flexible substrates. A feature called “Roll to roll” allows to place solar panels on the surfaces of any curvature. It can be window translucent “energy curtains” houses and cars, facades and roofs of buildings, consumer electronics, gadgets , etc.
Thus, the range of application of solar cells compared to traditional silicon solar panels, extends to the right — it contains all wearable electronics, automotive, appliances, technology smart house, provision of electricity to houses and buildings,
– materials based on perovskite could be used to print photos electronics not only on glass but on other materials and surfaces, including flexible,
– easy receipt of raw materials and hybrid perovskites of ordinary salts of metals and industrial chemical organic compounds, and not from expensive or rare elements, such as pure crystalline silicon or gallium arsenide,
– cheapness of production. To date, the estimated cost per square meter perovskite solar panels is less than $ 100, while the square meter of the best silicon costs about US $ 300. In mass production the difference will be 4-6-fold. Cheap production of a new class of devices will significantly reduce the use of conventional energy at the expense of clean and affordable photovoltaics.