solar cell

Dutch startup Solarge has developed a 500 W panel that weighs 50% less than conventional glass-backsheet modules. The new product can be fixed to rooftops with roofing anchors, which eliminates the need for ballast, according to the manufacturer.

The result was confirmed by Germany’s Fraunhofer Institute for Solar Energy Systems (Fraunhofer ISE). The cell was fabricated through a low-temperature co-evaporation method for the growth of the light-absorbing CIGS semiconductor thin film.

Developed by Australian scientists, the demonstrated system is claimed to achieve a solar-to-hydrogen efficiency of 20% at a levelized cost of hydrogen (LCOH) of $4.10/kg. The direct solar hydrogen generation technology is powered by a tandem perovskite-silicon solar cell with an unprecedented high open-circuit voltage of 1.271 V, and a power conversion efficiency of 24.3%.

German scientists have built a perovskite solar cell with spiro-TTB as a hole transport material, via the thermal co-evaporation method. The solar cell has an open-circuit voltage of 1.08 V, a fill factor of 83.0%, and a short-circuit current of 21.6 mA cm.

Furthermore, Tongwei has raised the prices of its solar cells and Comtec Solar announced it wants to sell its idled Shanghai and Hainan factories.

Scientists in Switzerland found that perovskites can be used to detect thermal neutrons emitted by radioactive devices. Taking advantage of several properties that also make the materials attractive for solar cell applications, the group was able to fabricate a novel device that could have various practical applications, including in energy generation.

Called SolFlex, the frameless panel is based on 22%-efficient solar cells and is designed for high, one-sided heat load. The standard product measures 100x100x2.9cm, weighs in at 3.4kg, and has a power output of 170 W.

Scientists in the UK have explained the mechanism behind chlorine used to boost the efficiency of cadmium telluride thin-film solar cells. With new understanding of the chemical processes at work in the manufacturing process, the group hopes to be able to push for cell efficiencies beyond 25%.

Longi posted a net profit of $773 million in the first half of the year after shipping 17 GW of modules. Xinte reported a net result of $190 million and Solargiga saw its revenue increase significantly.

U.S. researchers have proposed a new approach to fabricate solar thermophotovoltaics (STPV) with higher power densities. The novel technique consists of reducing the distance between the emitter and the solar cell to a nanoscale.