flexible solar cells

Australian scientists have demonstrated a flexible perovskite solar cell using roll-to-roll compatible “printing” type processes, which could potentially be applied in large-scale manufacturing. Of particular note is the development of a viable roll-to-roll process to deposit the electrode layer, which has thus far been a major challenge. Cells fabricated by the group achieved a maximum efficiency of 16.7%.

The Swedish company secured $38 million to build a manufacturing facility it has planned with the support of Swiss conglomerate ABB. The factory will be located in Stockholm and produce the company’s Powerfoyle products.

A team of researchers led by Nanchang University in China trialed a polymer based hole transport layer to flexible perovskite solar cells, using a glue to attach it to the active perovskite. The team was able to assemble the 19.87%-efficient cells into a small flexible module suitable for wearable solar applications, and says its design was inspired by the structure and movements of human vertebrae.

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%.

UK researchers claim to have proved the viability of wearable photovoltaic devices as an integrated part of regular clothing. A solar-powered fabric textile was created by embedding micro-crystalline silicon solar cells within the fibers of a textile through thin copper wires. The scientists claim that the device can maintain its performance even after 15 domestic machine cycles, 25 hand wash cycles, and 6000 abrasion cycles.

Scientists at the U.K.’s University of Manchester have developed a flag which can harvest solar and wind energy while hoisted. The banner, say the researchers, can generate up to 4 mW of energy, and could be used to power remote sensors or small electronic devices.

Scientists at the Okinawa Institute of Science and Technology have developed a process for the creation of perovskite cells with better than 20% efficiency. The cells use a tin-oxide electron transport layer, which the scientists say can triple their operational lifetime.

Researchers from the Rice University in Houston, Texas, have unveiled new findings in the field of organic photovoltaics (OPV).