Technology and R&D

Australia’s national science agency CSIRO and Canada’s University of British Columbia have announced a memorandum of understanding aimed at accelerating clean hydrogen technologies.

At the beginning of the decade, Zhengrong Shi, at that time founder and CEO of Suntech, was one of the most influential people in solar. After the Chinese module manufacturer ran into troubles in 2013, he had to go and, thus, slipped out of the spotlight. Now he is back as founder of Sunman, a company specializing in lightweight crystalline modules using polymer composite materials instead of glass. pv magazine caught up with him at Intersolar Europe 2019.

Chinese PV manufacturer Trina Solar today announced it has achieved a new efficiency record of 24.58% for a cell based on n-type monocrystalline TOPCon technology. The record has been confirmed by the ISFH CalTeC laboratory in Germany. Meanwhile, fellow giant Canadian Solar also hit a new milestone with its cast mono technology, reaching 22.28% conversion efficiency on a 157mm² wafer.

The International Energy Agency says more than 2 million electric vehicles hit the road last year, to take the total to more than 5 million. The agency has stressed the importance of public policy, charging infrastructure and a fall in costs for continued EV uptake, and says up to 43 million EVs could be sold in 2030.

The two companies have glued 230 square meters of solar film to the rough concrete surface of a grain silo in Donauwörth, Germany. The film is expected to generate approximately 6,700 kWh kilowatt-hours of solar power per year. Lechwerke and Heliatek want to open up new potential for the use of PV on other surfaces with the pilot project.

A new study conducted by an international team of scientists from leading institutions in the U.K. and the United States provides an explanation as to how the addition of selenide can greatly improve the efficiency of cadmium telluride solar cells. Explaining the performance boost will provide researchers with a route to explore further efficiency improvements, pushing the material’s cost even lower.

Perovskites and quantum dot solar cells both have potential for use in high efficiency PV devices, but have major challenges to overcome to be a commercial reality. Scientists at the University of Toronto have found that if the two technologies are combined in the right way, they can stabilize each other.

Researchers at the University of California, San Diego – with the help of the university’s Comet supercomputer – modelled thousands of halide compounds to come up with a shortlist of 13 materials that could be candidates for the efficient solar cell materials of the future.

Doping perovksite solar cells with potassium is said to eliminate interface trapping defects and mobile ion migration. ‘Hysteresis suppression’ is key for more efficient cells based on the promising material.

Europe’s most important scientific research institutes have joined forces to make perovskite solar applications more than just a dream. The European Perovskite Initiative consortium is planning to draw up a perovskite white paper.