Solar Cells

Scientists in China have designed a kesterite-kesterite solar cell with an optimized structure that may potentially achieve efficiencies nearing those of crystalline silicon PV devices. They improved the performance of the two subcells by adjusting band alignment at interfaces, selecting proper buffer layers, and adding a double layer to both devices.

Dutch fund manager DIF Capital Partners has signed an agreement to purchase a majority of Dutch solar project developer Novar for an undisclosed sum.

Voltec and the Institut Photovoltaïque d’Île-de-France (IPVF) plan to set up a pilot line for their new tandem panel tech in 2023 and their first 200 MW industrial demonstrator in 2025. They also plan to increase the factory’s capacity to 1 GW in 2027 and 5 GW by 2030.

Fraunhofer Institute for Solar Energy Systems (Fraunhofer ISE) and Heckert Solar have developed a rooftop solar panel in Germany. The 400 W module, featuring M12 half cells, boasts an efficiency of 20.5%. The collaborative effort led to the establishment of a brand-new production line dedicated to this module series.

A group of scientists in the United States has utilized a new passivation strategy based on sulfur-modified methylthio molecules to build an inverted perovskite solar cell with a certified efficiency of 25.1% and remarkable stability. The proposed passivation approach reportedly led to a five-fold increase in carrier lifetime and a three-fold reduction in photoluminescence quantum yield losses.

One of the project architects behind a solar power system in a southern Lebanese village tells pv magazine that the 200-panel array – which pumped water from an underground well for roughly 400 families – was allegedly destroyed earlier this month by Israeli forces. The community needs help rebuilding it, he says.

From the International Solar Energy Society’s perspective, and the vision of a world with 100% renewable energy for everyone used wisely and efficiently, PV module production should not become an oligopoly and should not be concentrated in one corner of the world.

An international research group has utilized a new porosification technique to build gallium arsenide (GaAs) solar cells that allow the recovery of germanium films. The new cell achieved an efficiency that is reportedly in line with that of other GaAs PV devices, but can be produced at a lower cost thanks to the reuse of germanium.

Tongwei has developed the G12 TOPcon solar module series, with efficiency ratings up to 23.1% and a temperature coefficient of -0.30% per degree Celsius.

EnergyTrend recorded a 1.85% to 2.68% decline in passivation emitter rear contact cell (PERC) solar module prices in China last week.