These new solar cells achieve an impressive steady-state efficiency of 24.35%, which is the highest perovskite solar cell to date (active area 1 cm2 ).
SINGAPORE , June 22, 2023 /PRNewswire/ -- A perovskite solar cell developed by a team of scientists from the National University of Singapore (NUS) has achieved a world record efficiency of 24.35% with an active area of 1 cm2 . This achievement paves the way for cheaper, more efficient and longer-lasting solar cells.
To enable consistent comparison and benchmarking of different solar cell technologies, the solar cell (PV) community uses a standard volume of at least 1 cm2 to indicate the efficiency of a single solar cell in their solar cell efficiency tables. Before the NUS team's record achievement, the best 1 cm2 perovskite solar cell had an energy conversion efficiency of 23.7%. This breakthrough in maximizing next-generation renewable power generation will be critical to securing the world's energy future .
Perovskites are a class of materials that exhibit high light absorption efficiencies and ease of fabrication, making them promising for solar cell applications. Several breakthroughs have been made in perovskite solar cell technology over the last decade and this technology is constantly evolving.
To address this issue, we have made a concerted effort to develop innovative and scalable technologies to improve the performance of 1 cm2 perovskite solar cells. Our goal was to close the efficiency gap and unlock the full potential of large devices. Hu Yi, Associate Professor at NUS and Chair of the NUS Research Group, composed of scientists from the Department of Chemical and Biomolecular Engineering, the Design and Engineering Authority, and scientists from the Solar Energy Research Institute of Singapore (SERIS), a university-level research institute. NUS Institute.
He added: "After more than 14 years of development of perovskite solar cells, this article presents the first example of an inverted perovskite solar structure that outperforms a substantially integrated normal structure perovskite solar cell with an active area of 1 cm2 ." Ours Perovskite solar cells. The innovation is related to the charge transfer component. As inverted perovskite solar cells always offer superior stability and scalability, achieving higher efficiency than ordinary perovskite cells is an important step in bringing this advanced technology to market.
This breakthrough achievement by Associate Professor Hu Yi and his team is included in the Solar Panel Efficiency Blueprint 2023 (Issue 62) . Published June 21, 2023 in the journal Progress in Photovoltaics, these pivot tables provide a comprehensive list of the most reliable. Guaranteed efficiency of solar cells and modules.
Inexpensive, efficient and stable solar cell technology
This record was achieved through the successful incorporation of a novel interface material into perovskite solar cells.
“The introduction of this new interface material offers a number of beneficial properties, including superior optical, electrical and chemical properties. These properties work synergistically to improve both the efficiency and longevity of perovskite solar cells, paving the way for significant improvements in their performance. Li Xia Research SERIS.
The promising results reported by the NUS team represent an important step in advancing the commercialization of low-cost, efficient and stable perovskite solar cell technology. Our results have laid the foundation for accelerating the commercialization and integration of solar cells into various energy systems. Team member Mr. Wang Shi said that we are encouraged by our innovation potential, which is an important contribution to the future of sustainable and renewable energy. , PhD student at NUS.
On the way to a greener future
Building on this exciting development, Associate Professor Howe and his team aim to push the boundaries of perovskite solar cell technology even further.
Another important goal is to improve the durability of perovskite solar cells, as perovskite materials are sensitive to moisture and can degrade over time. Associate Professor Howe commented: “We are developing a bespoke accelerated weathering method to bring this technology from laboratory to production. One of our next goals is to ensure 25-year operational stability for perovskite solar cells.”
The team is also working on modularizing solar cells, scaling up perovskite solar cells and proving their efficiency and effectiveness on a larger scale.
"The results of our current research will guide the eventual development of commercially viable and robust perovskite solar cells that can serve as sustainable energy solutions to reduce our dependence on fossil fuels," added Professor Howe.
More details - https://news.nus.edu.sg/perovskite-solar-cells-set-new-world-record-for-power-conversion-efficiency/
About the National University of Singapore (NUS).
The National University of Singapore (NUS) is one of Singapore's leading universities, offering a holistic approach to education, research and entrepreneurship with an emphasis on Asian perspectives and experiences. We have 16 colleges, departments and schools in three campuses in Singapore with over 40,000 students from 100 countries enriching our vibrant and diverse campus community. We have established the NUS Overseas College Program in more than 15 cities around the world.
Our interdisciplinary, practice-oriented approach to education, research and entrepreneurship enables us to work closely with industry, government and academia to solve important and complex problems related to Asia and the world. Our faculty researchers, research centers of excellence, corporate laboratories and more than 30 university-wide research institutes focus on topics such as energy; environmental and urban sustainability; treatment and prevention of diseases; active aging; advanced content; risk management and financial system resilience; Asian Studies; and smart nation capabilities such as artificial intelligence, data science, operations research, and cybersecurity.
For more information on the NUS, see nus.edu.sg.
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Source : National University of Singapore
