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15
June 2023
By Beatriz Santos
Longi claims 33.5% efficiency for perovskite/silicon
tandem solar cell
Image: Longi
Longi’s R&D team has achieved a power conversion efficiency of
33.5% for a perovskite-silicon solar cell. The China-based module
manufacturer made the announcement during Intersolar Europe this week
in Munich, Germany.
“Improving cell conversion efficiency and reducing the cost of
electricity remain the perpetual theme driving the development of the
photovoltaic industry,” said Longi President Li Zhenguo during the
announcement speech.
The European Solar Test Installation (ESTI) has certified the results,
which represent a 1.7% increase on the previous 31.8% efficiency
rating, which was announced during the SNEC conference in late May in
Shanghai, China.
The US National Renewable Energy
Laboratory (NREL) has ranked Longi's
latest efficiency results as the second-highest on record,
following King Abdullah University of Science and
Technology's (KAUST) achievement of 33.7%
efficiency in June. Earlier in April, KAUST reported
an efficiency of 33.2% for a perovskite/silicon tandem PV
cell.
Longi has broken the world record for solar cell efficiency 14 times
since April 2021. It claimed the world’s highest efficiency for
silicon cells in November 2022, with a 26.81%
efficiency rating for an unspecified heterojunction solar cell.
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