Mass-Production all set 28.7% efficient solar cell fabricated in Germany

• The record was set by energy solutions supplier Q CELLS as well as German research centre Helmholtz-Zentrum Berlin.
• The 28.7% effectiveness was accomplished for a 2-terminal tandem solar cell combining a mass-production all set silicon bottom cell based on Q.ANTUM modern technology as well as a top-cell based upon perovskite innovation.

Q CELLS, a total energy options company in solar, power storage space, downstream task organization and power retail, claims to have established a new world-record tandem cell effectiveness of 28.7% in cooperation with researchers at Helmholtz-Zentrum Berlin, a German research centre, utilizing a Q.ANTUM-based silicon bottom cell in mix with a perovskite-based leading cell.

Q CELLS' R&D group in Thalheim, Germany, has functioned jointly with Helmholtz-Zentrum Berlin over the past three years to create a tandem solar cell consisting of a silicon-based Q.ANTUM bottom cell and a perovskite-based top cell.

" This most recent record performance result of 28.7% is an enhancement of almost one percent factor compared with the 2020 record value of 27.8 % (which was separately confirmed by the Fraunhofer ISE Callab). This boost in tandem efficiency has been enabled by renovation of both the perovskite and also the silicon sub cells," stated a main declaration.

The research and development was partly moneyed by the German Federal Ministry for Economic Affairs and also Climate Action (BMWK) as well as the state of Saxony-Anhalt. While the solar study community has observed also greater perovskite-tandem cell efficiencies, these records have apparently been achieved utilizing laboratory technology that is not directly transferrable right into mass production.

The accomplishment of Q CELLS and also Helmholtz-Zentrum Berlin is notable mostly since the 28.7% efficiency was reached making use of an industry practical as well as cost-efficient bottom cell structure based upon the Q.ANTUM modern technology, said the declaration.

In the past year, Q CELLS announced that it is to boost its R&D financial investment in Germany to EUR125 million over the following 3 years. A significant portion of that figure is earmarked for the continuous support of Q CELLS' R&D department on the commercialization of perovskite-silicon tandem innovation.

" It is impressive just how close the collectively achieved efficiency with an automation all set bottom cell currently pertains to what we can reach at a lab scale", Prof. Dr. Bernd Rech, scientific supervisor of HZB said.

Prof. Dr. Steve Albrecht, group leader at HZB and Juniorprofessor at Technische Universität Berlin added: "It is extremely interesting that we allow this high tandem effectiveness utilizing industry pertinent bottom cells with a high market share, so there may be quick impact of the tandem innovation to revolutionize the PV market."

Dr. Daniel Jeong, CTO of Q CELLS, claimed: "Q CELLS is confident that it can once more shape the next-generation of solar cells, and also will continue to invest greatly in sustaining r & d in this area."