silver

In other news, Canadian Solar revealed it shipped 14.5 GW of solar modules in 2021 and China Power said it installed 1.22 GW more solar generation capacity last year.

Developed by Germany’s Fraunhofer Institute for Solar Energy Systems ISE and ASYS Automatisierungssysteme GmbH, the new machine is claimed to increase the print process throughput by a factor of 1.5.

Built by a Dutch-Chinese research team, the cell is relying on a new type of hybrid-shaped Cu finger consisting of a rectangular bottom part and a round top part, which was integrated into the cell through a 2-step electrochemical deposition process. The Cu-plated device outperformed both optically and electrically a reference cell fabricated via screen printing.

French start-up Rosi Solar has developed an industrial solution claimed to be capable of recovering high purity silicon, silver and copper contained in end-of-life PV modules. The company’s technology is based on a pyrolysis process that makes it possible to isolate the different metals from the cells.

According to the Silver Institute, global industrial silver demand is expected to grow 8% this year due to strong demand in all key sectors, including the PV industry.

Should heterojunction solar technologies be temporarily shelved? Could copper plating replace screen-printed silver conductive surfaces in cells? Why are tandem cells a likely successor to PERC? Brett Hallam recently sat down with Natalie Filatoff in Sydney to explain the findings of a new study by UNSW that sought to answer these controversial questions.

Developed by a U.S.-based start-up, the new manufacturing process is claimed to reduce silver consumption and improve solar module performance by up to 3 W. It consists of connecting sub-cells in series within a single cell in order to increase the device voltage and without requiring cells to be physically broken and rewired.

Scientists in Germany investigated various routes to optimizing cell design for perovskite-silicon tandem products. Beyond the perovskite layer itself, they note several other areas that should be optimized for tandem cells, taking silicon heterojunction processing as a starting point. The research identifies several routes to cut costs in cell production, including a significant reduction in indium consumption.

An Indian research group has used three different chemicals instead of commonly used hydrofluoric acid to separate silicon from the cell. The technique is claimed to be able to deliver recycled silicon with a purity of up to 99.9984%.

The input costs of the two biggest contributors to solar plant development expense have gone through the roof since the world began to come out of Covid-19 lockdowns, to leave project developers with some difficult choices.