solar cell

The Helmholtz Zentrum Berlin set a world record for perovskite-silicon tandem cell efficiency last year at 29.15%. The group has delved further into the cell materials, looking to better understand mechanisms behind the impressive efficiencies achieved so far. Their latest work shows that with the current cell design, long term stability at efficiencies up to 32.4% should be possible.

An international research team has set up a new database with crucial data on emerging technologies for perovskite, organic, and dye-sensitized solar cells. The platform also includes information on the best flexible solar cells.

The two companies have concluded a settlement after several years of stalling. Ecosolifer will pay for part of the cell production line ordered in 2015 but Meyer Burger will incur a net loss of almost CHF2 million.

Scientists in Japan put perovskite solar cells under the microscope, aiming to observe at the molecular level the degradation mechanisms that can occur during operation. Their findings offer an improved understanding of performance loss in perovskite thin films, as well as several pathways towards mitigation.

Scientists in the United States have conceived a new process to apply a low-cost organic pigment to perovskite solar cells. The new technique is claimed to increase the efficiency of the devices by around 1.2% and also to improve the cells’ stability.

Scientists in Portugal have proposed a new framework to simulate mismatch conditions at the cell level. They claim the tool is particularly suitable for simulations of small PV systems with few module strings.

Researchers in China are proposing a new technique to recover polyethylene glycol terephthalate (PET) and ethylene-vinyl acetate (EVA) in solar panels at the end of their lifecycle. The two materials represent around 15% of the total material in a wasted solar cell, with a share of 10% for EVA and 5% for PET, respectively.

Stanford scientists have used a robotic device with two nozzles to quickly produce thin films of perovskite. With these films, they have manufactured perovskite cells and modules with efficiencies of 18% and 15.5%, respectively. According to them, this technique may enable the production of perovskite modules at a cost of around $0.25 per square foot.

Scientists in the Netherlands are planning to build intelligent PV devices for energy and information applications. Their intention is to make this approach a new field of PV research, whose ultimate goal is enabling solar cells to communicate with each other and with other devices, ensuring that all the generated energy ends up exactly where it’s needed, especially in the urban environment.

The new technique, proposed by researchers in Pakistan, is claimed to estimate the voltage, current and temperature of a PV system without interrupting the power flow to load.