Two-layer solar cells improve energy efficiency
Published on : Tuesday 30-11--0001
US analysts have expanded the effectiveness of traditional sun based cells by about 20%. This is made conceivable by another two-layer covering that isn't costly to deliver.
At the UCLA Samueli School of Engineering in Los Angeles, materials researchers have built up another sort of thin-film sun powered cell that creates more vitality from daylight than customary cells do. The component includes a base comprising of a 2 μm layer of copper, indium, gallium and selenide (CIGS).
The group driven by Professor Yang at that point connected a 1 μm layer of perovskite, a savvy lead and iodine compound. The two layers are associated by a nanoscale interface that was additionally created at UCLA. It gives the sun powered component a more elevated amount of voltage, enabling it to produce more vitality. The two layers are appended to an around 2 mm glass substrate.
The CIGS base layer alone accomplishes a productivity of around 18.7%. Together with the perovskite layer, the proficiency increments to 22.4%. The extra execution has now been affirmed by autonomous tests in the National Renewable Energy Laboratory (NREL) of the US Department of Energy. Educator Yang hopes to be equipped for enhancing the proficiency of these two-layer cells by an extra 30%.