perovskite solar modules

Princeton University researchers have developed a new way to accelerate solar cell longevity testing.

The 19.2%-efficient perovskite cells used in the module rely on an electron layer based on tin oxide that was deposited via chemical bath deposition. This technique, according to the device’s creators, has made it possible to have a relatively small drop in efficiency from small cells to the 40cm² module.

Through a conventional coloring technique for crystalline solar modules, scientists in Germany were able to manufacture a colorized small perovskite solar module in white marble optic displays that maintains up to 88.5% of the efficiency it had before coloring. The device was built with five cells interconnected in series and has a total area of 9cm².

The $1.28 billion plan includes a 3.1 GW production capacity expansion in South Korea, where the company’s solar module capacity will reach 7.6 GW by 2025.

Researchers in Singapore have built what they claim is the industry’s most efficient, large-area co-evaporated solar cell. According to their findings, the device has exhibited remarkable thermal stability and could reach commercial maturity within the next few years.

The efficiency of the module was certified by the U.S.’ National Renewable Energy Laboratory. It was built with perovskite solar cells with a stabilized efficiency of 23.6%, an open-circuit voltage of 1.17 V, a short-circuit current density of 24.1 mA per cm−2, and a fill factor of 0.842.

Proper recycling strategies for perovskite modules could ensure sustainability and improve energy payback times, according to US researchers. They claim that the best recycled perovskite cell architecture could produce an energy payback time of about one month, versus 1.3 to 2.4 years for crystalline silicon modules.

The methylammonium-free inverted solar module was built on a flexible substrate made of polyethylene terephthalate (PET). A hole transporting material made of poly(triarylamine) (PTAA) and a double-cation cesium formamidinium (CsFA) perovskite layer were deposited through blade-coating and nitrogen-assisted blade-coating.

The panel, fabricated by scientists in Italy, is composed of five series-connected cells, each with an area of 2.01 cm² and has an aperture area of 11 cm². It showed a power conversion efficiency of 16.1%, an open-circuit voltage of 5.59 V, a short-circuit current of 37 mA, and a fill factor of 72.5%.

Scientists in China have developed a large-area perovskite solar panel by utilizing diphenyl sulfoxide (DPSO) as an electron acceptor. The device was fabricated via slot-die coating, and featured a parallel-interconnection architecture.