Solar Technology & PV R&D News

Researchers from the Ulsan Institute of Science and Technology have demonstrated a new method of fabricating perovskite-on-silicon tandem devices, using a transparent conductive adhesive to combine the two cells. The scientists have developed devices with demonstrated efficiencies of 19.4%, and propose strategies to bring that above 24% using existing technology.

Carbon clusters of a few nanometers in size could be responsible for the defects affecting the thermal stability of SiCs. The defective carbon accumulations arise during the oxidation of silicon carbide to silicon dioxide under high temperatures

Electrical engineer Aaswath Raman, at the University of California in LA, has come up with a device that can harness energy from a dark night sky to power an LED — hinting at a new frontier in renewable energy.

Researchers at the University of Warwick in the U.K. have made a discovery that could lead to new designs for organic PV devices. Their findings could open up a new range of materials for the electrode layer and bring low cost, flexible organic PV devices a step closer commercial reality, say the academics.

Scientists from the Helmholtz Zentrum Berlin research institute this morning presented a new world record efficiency for a tandem cell combining CIGS and perovskite technology at the EU PVSEC conference in Marseille. The development of an organic coating layer between the two semiconductors was key.

Quality control and problem detection and classification was brought into focus at the conference in Marseille. A packed house at a session focused on the latest fault detection techniques indicated the high level of interest in the field.

Germany’s Fraunhofer ISE is presenting a wide range of solutions for integrated PV – alongside farming, vehicles, the built environment and more, at the 2019 EU PVSEC show happening this week in Marseille.

The invention converts the energy produced by PV cells directly into mechanical motion without the need for batteries or power electronics. Its developers claim the robustness of the solar motor can drive water pumps and ventilation turbines for more than 20 years without the need for maintenance.

The ‘green’ version of the ION Green Solar lift – designed, developed and manufactured in Spain by Fain Ascensores – can cut carbon emissions 86%. That figure rises to 100% with the PV-powered ‘solar’ model.

Fraunhofer ISE has worked with German technology companies to improve the metallization process in silicon solar cells. The result could drive down module costs quite a bit.

With the 200 hydrogen bikes offered to journalists and world leaders at the G7 summit in Biarritz proving popular, manufacturer Pragma Industries has received an order for 1,000 of them from Chilean president Sebastian Pinera. The company’s founder, Pierre Forté, wants the bike to have a societal impact in developing countries.

Scientists at the institution have achieved 21.6% efficiency with a perovskite cell measuring 1cm². The landmark has been verified as a new world record for perovskites at this size.

Another study has highlighted the advantages of combining solar with agriculture. According to the paper, growing chiltepin pepper, jalapeno and cherry tomato in dryland areas of the U.S. under the shade of PV modules is not only possible, but can lead to a better harvest.

A new coating developed by scientists at Stanford promises to bring lithium metal batteries ‘closer to reality’, by significantly extending their operational lifetime and limiting the occurrence of dendrites at the anode, which can cause short circuiting and fires.

The levelized cost of energy produced by large scale PV projects ranges from €24/MWh in southern Spain to €42/MWh in Finland. New research states that is already cheaper than the average spot market electricity price and that the figure for big facilities in southern Spain may fall to €14 in 2030 and €9 in 2050.