Trina Solar has achieved a world record efficiency of 27.08% for its latest n-type fully passivated heterojunction (HJT) solar cell. The Institute for Solar Energy Research in Hamelin (ISFH) has verified the result.
The record-breaking cell uses Trina Solar’s thin-film passivation technology and half-cut, phosphorus-doped n-type silicon wafers measuring 210 mm x 105 mm, produced via the Czochralski process.
The company said it has improved cell performance with innovations in full backside passivation heterojunction techniques, multi-frequency RF doping optimization for microcrystalline systems and ultra-fine line printing technologies, significantly increasing optical and electrical efficiency.
“We remain committed to advancing the development of passivated contact cells and modules, further strengthening our competitive position,” said Gao Jifan, Chairman and CEO of Trina Solar.
This milestone marks Trina Solar’s 29th world record for solar cell efficiency and a significant advance in bifacial contact technology, exceeding the 27% efficiency threshold for the first time. It follows previous achievements in October and November, when Trina set records of 25.9% and 26.58% efficiency for n-type monocrystalline tunnel oxide passivated contact cells (TOPCon).
The HJT efficiency of 27.08% underlines Trina Solar’s leadership in passivated contact technologies for both high and low temperatures, strengthening innovation in photovoltaic research.
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