Trina solar announces IBC solar cell set new efficiency record of 24.13%
Trina Solar announced that for large area (156 x 156mm2) n-type mono-crystalline silicon (c-Si) Interdigitated Back Contact (IBC) solar cell has set a new efficiency record of 24.13% for at its State Key Laboratory (SKL) for a large-area .
The record-breaking n-type mono-crystalline silicon solar cell was fabricated on a large-sized phosphorous-doped Cz Silicon substrate with a low-cost industrial IBC process, featuring conventional tube doping technologies and fully screen-printed metallization. The 156×156 mm2 solar cell reached a total-area efficiency of 24.13% as independently measured by the Japan Electrical Safety & Environment Technology Laboratories (JET). The IBC solar cell has a total measured area of 243.3cm2 and was measured without any aperture. The champion cell presents the following characteristics: an open-circuit voltage Voc of 702.7mV, a short-circuit current density Jsc of 42.1 mA/cm2 and a fill factor FF of 81.47%.
Trina Solar VP and Chief Scientist, Dr. Pierre Verlinden said that they are very delighted to announce the latest achievement from their research team at the SKL PVST. Over the last few years, their R&D team has managed to continuously improve the efficiency of their n-type IBC solar cells, pushing the limits and surpassing their previous records, and approaching very closely to the performance of their best small-area laboratory cell developed in collaboration with ANU three years ago. He further added that IBC solar cells are one of the most efficient silicon solar cells available today and are particularly suitable for applications for which the requirement of a high power density is more important than LCOE (Levelized Cost of Electricity). Their IBC cell program has always focused on the development of large-area cells and low-cost industrial processes. They are very happy to announce today that their industrial large area IBC cell has reached almost the same level of performance as the small-area laboratory cell made three years ago with a photolithography process. In an innovation-driven PV industry, Trina Solar is always focused on developing leading-edge PV technologies and products with improved cell efficiency and reduced system cost. Their goal is to insist on technological innovation, and transform as quickly as possible the laboratory technology into commercial production.
Image Source: Trina Solar