Thin-film

German scientists have developed a new process for the formation of a phase pure kesterite Cu2ZnSnSe4 (CZTSe), which they claim can improve the material homogeneity and suppress the well-known issue of tin losses. The new technique is based on stacked elemental and alloyed precursors with a Zn/Cu-Sn/Zn precursor structure.

French solar thin-film specialist Armor has designed a retractable automotive solar cover. It has deployed an initial prototype on a Gazelle electric car, but it said that the cover can be used on any kind of electric vehicle.

The thin-film cell was manufactured through a low-temperature process and doping with alkali elements.

Researchers led by Belgian institute imec claim to have achieved the result with a 1cm² perovskite tandem solar cell. The result tops the 24.6% efficiency the consortium announced in September 2018. The cell’s developers are now aiming for 30%.

Superior hydrodynamic properties, more robustness in high seas and a much reduced logistics requirement support the case for thin-film over crystalline silicon, pontoon-mounted alternatives, according to an Indo-Italian research group.

In 2020, perovskite cells could pass the IEC tests intended for the standardization of solar modules, and in 2022, they could even be mass-produced. In an interview with pv magazine, Tom Aernouts explains the status of work on the new PV technology. He is a research and development manager for thin film photovoltaics at the Belgian research institute Imec.

A study has considered the best mathematical models for predicting solar module performance under varying conditions.

Calyxo, a German cadmium telluride solar module manufacturer, has filed for insolvency for the second time, despite the recent emergence of new prospective investors. Meanwhile, Crystalsol – an Austrian flexible solar panel maker – has also initiated insolvency proceedings, due to losses of roughly €7 million.

Researchers at the American Institute of Physics have used the clear-sky irradiance model developed by the National Renewable Energy Laboratory to measure the degradation rates of solar panels at a testing field in Germany over five years. The scientists say the model, when combined with real-world data, offers an efficient tool to evaluate the aging of PV technology.

Scientists from China’s State Key Laboratory of Fire Science have analyzed the combustion behavior of flexible PET-laminated PV panels. They found toxic gases including sulfur dioxide, hydrogen fluoride, hydrogen cyanide and a small amount of volatile organic compounds are released when such a PV system burns.