Schott Solar advised that its newly developed Quasimono wafer reached 19.9% efficiency measurement, which was confirmed by Fraunhofer ISE. The Quasimono wafer is produced using a new technique in the manufacturing of the full-square wafers that are said to contain a high monocrystalline share. Schott noted that it had achieved its wafer using a modified conventional VGF process, which is more commonly used to manufacture polycrystalline wafers. The 19.9% efficiency performance is expected to help Schott make further strides in its planned Schott Perform Mono solar module debut in 2012.
Schott instructed that its Quasimono technology features the seed crystal being placed at the bottom of the crucible and partly melted. Quasi-monocrystalline growth is then supposed to grow by the way of the Vertical Gradient Freeze (VGF) technique allowing the company to, as it states, on occasion manufacture pure monocrystalline wafers from an ingot. Schott acknowledged that the Quasimono technology achievement rests in the development of a new engineering process and new furnace technology, which its development team is working on further refining.