MUNICH, June 21,
2024 /PRNewswire/ -- The world-leading solar
technology company, LONGi Green Energy Technology Co., Ltd.
(hereafter as "LONGi"), officially announced the new world
record efficiency of 30.1% for the commercial M6 size wafer-level
silicon-perovskite tandem solar cell on June
19, 2024 at the 2024 Intersolar Europe in Munich, Germany.
The commercial M6 size wafer-level silicon-perovskite tandem
solar cell independently certified by the authoritative
certification institutions of the Fraunhofer Institute for Solar
Energy (Fraunhofer ISE) in Germany
achieved photovoltaic conversion efficiencies of 30.1%.
The release of this new world record comes less than a week
after LONGi announced a new world record of 34.6% tandem solar cell
efficiency at the 2024 SNEC EXPO in Shanghai, and it also breaks the previous
world record of 28.6% wafer-level tandem solar cell efficiency on
M4 commercial size wafers in May 2023
with an absolute efficiency advantage of 1.5%.
Dr. He Bo, R&D Director of LONGi Central R&D Institute,
spoke at the launch ceremony that the new world record efficiencies
achieved by LONGi represent not only a significant advancement in
pushing the efficiency limits of silicon-perovskite tandem cell
prototypes but also a milestone in the commercial viability of this
technology, marking a breakthrough by LONGi's team in its
development.
Dr. He Bo said: "While continuously exploring the efficiency
limits of tandem solar cells, LONGi's R&D team started research
on mass production technology for tandem solar cells in
October 2023, and in just six months,
they overcame two key challenges: the preparation of large-area
perovskite films in air and ultra-low-temperature
metallization." Combining the experience in prototype device
researches, the R&D team achieved a photovoltaic conversion
efficiency of over 30% for the first time on commercial-sized
silicon-perovskite tandem solar cell devices, showing a significant
efficiency advantage over LONGi's recently created efficiency
record of 27.3%, greatly boosting the global photovoltaic
industry's confidence and expectations for silicon-perovskite
tandem solar cell technology.
The theoretical limit efficiency of monocrystalline
silicon-perovskite tandem solar cells is up to 43%, making them the
next generation of ultra-high efficiency solar cells after
monocrystalline silicon back-contact (BC) cells. They are an
emerging photovoltaic technology that is being actively researched
by the global photovoltaic industry.
The creation of this "Dual-Champion" world records for tandem
solar cells not only redefines the efficiency limit of two-terminal
tandem cells but also takes a key step towards the
industrialization of tandem solar cells, helping LONGi to continue
leading in both the mainstream tracks of monocrystalline silicon
single-junction solar cells and tandem solar cells.
"LONGi's Central R&D Institute, the backbone of the
company, boasts a vibrant research team exceeding 5000 members.
Notably, the team dedicated to advancing crystal silicon-perovskite
tandem solar cells technology, which has consistently shattered
global efficiency records, has a remarkably youthful average age of
just 28 years." Dennis She, Vice President of LONGi, introduced
the strong team at the workshop "Technological innovation and
intelligent manufacturing help the photovoltaic industry move
towards new prosperity". LONGi has attached great importance
to research and innovation in technology since its establishment.
Since its listing in 2012 until the end of 2023, LONGi has invested
over 30 billion yuan in R&D, and
has obtained a total of 2879 authorized patents.
LONGi's R&D team adheres to the concept of "innovate
breakthroughs and make good use of sunlight" continuously exploring
the limits of solar cell efficiency, promoting the
industrialization of emerging photovoltaic technologies and rapid
upgrades of green energy products, and constantly creating reliable
products that maximize customer value.
About LONGi
Founded in 2000, LONGi is committed to being the world's leading
solar technology company, focusing on customer-driven value
creation for full scenario energy transformation.
Under its mission of 'making the best of solar energy to build a
green world', LONGi has dedicated itself to technology innovation
and established five business sectors, covering mono silicon wafers
cells and modules, commercial & industrial distributed solar
solutions, green energy solutions and hydrogen equipment. The
company has honed its capabilities to provide green energy and has
more recently, also embraced green hydrogen products and solutions
to support global zero carbon development. www.longi.com
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SOURCE LONGi