The research group led by Professor Martin Green has published version 64 of the solar cell efficiency tables. There are 19 new results reported in the new version.
This was published by the international research group led by Professor Martin Green of the University of New South Wales (UNSW) in Australia Version 64 of the “Efficiency tables for solar cells” in Progress in photovoltaics.
The scientists said they have added 19 new results to the new tables since December.
Strong progress was reported across the range of solar cell technologies, including silicon, chalcogenide, organic and perovskite.
A major new achievement is the 27.3% efficient n-type silicon heterojunction interdigitated-back-contact (HBC) solar cell unveiled by Chinese manufacturer Longi in late May. “The cell, which sets a new outright record for silicon, has both polarity contacts on the back, limiting loss due to the absence of contacts on the illuminated surface on the front,” the paper said. “A full laser patterning process was used for the more complex back surface patterning required for such devices.”
Another result is the 34.2% energy conversion efficiency Longi achieved in April for a perovskite-silicon tandem solar cell with an updated value of 34.6% obtained in May, held in reserve and reported at the Shanghai New Energy Conference (SNEC) in June.
The list also includes a 25.6% efficient n-type large area TOPCon cell manufactured by JA Solar, a 26.8% efficient n-type large area silicon cell manufactured by Longi, and the efficiency of 24.9 % that reached Singapore-based Maxeon. for its IBC solar panel.
In addition, the tables now include the 22.6% efficiency achieved by US company First Solar for a 0.45 cm2 cadmium telluride (CdTe) cell, as well as several other thin-film solar cells based on kesterite (CZTSSe) or copper, gallium, indium and diselenide (CIGS). These include reaching the 15% efficiency milestone for both small-area CZTSSe cells, made by the Chinese Academy of Sciences, and for a full-size 0.8 m2 perovskite module made by Microquanta, founded by former UNSW students.
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In version 63 of the tables, released in December, the researchers added 6 new results. The group has seen major improvements in all cell categories since 1993, when the tables were first published.
The research group consists of scientists from the European Commission’s Joint Research Center, the German Fraunhofer Institute for Solar Energy Systems and the Institute for Solar Energy Research (ISFH), the Japanese National Institute of Advanced Industrial Science and Technology and the American National Renewable Energy Laboratory.
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