Trinasolar Sets New World Record For N-Type Solar Cell Efficiency Of 27.08%

Trinasolar announced that its largest-area industrial solar cell, the N-Type Totally Passivated (TOPAS) heterojunction (HJT or SHJ)-based solar cell, has achieved an efficiency of 27.08%, setting a new record for front-to-back contact solar cells. This was confirmed by the Institute for Solar Energy Research in Hamelin, Germany. It is the first time that a crystalline silicon solar cell with a front-to-back contact structure has achieved an efficiency of over 27% on the front side.

The record-breaking solar cell uses a base made of special silicon, treated with phosphorus to improve its efficiency. This base is larger than normal (210×105 mm^²) and was designed to better retain the energy generated. The technology combines several innovations: a coating that helps reduce energy losses, an emitter that improves light capture, an advanced design to capture more sunlight and highly precise printing techniques. All of this resulted in an impressive 27.08% efficiency in the cell's use of sunlight.

“We are delighted with the achievement our R&D team has achieved,” said Gao Jifan, Chairman and CEO of Trinasolar. “Trinasolar’s ​​commitment to its R&D efforts in fully passivated solar cells and modules is stronger than ever as we continue to enhance its competitiveness.”

This is another major breakthrough for Trinasolar in the area of ​​front and back contact solar cells, following two world records for N-Type TOPCon solar cell efficiency set in the last two months. With the world record of 27.08%, Trinasolar achieved the highest efficiency levels for both high-temperature and low-temperature passivated contacts.