MXenes-based perovskite solar cell achieves 23.66% efficiency
A UK-Chinese research group claims to have achieved remarkable efficiency and stability for a solar cell based on an electron transport layer doped with two-dimensional titanium carbide (Ti3C2Tx). The champion cell has an efficiency of 23.66%, an open-circuit voltage of 1.095 V, a short-circuit current of 25.07 mA/cm2, and fill factor of 83.18%.
Prospects for Ruddlesden–Popper perovskite solar cells
A research group in the Netherlands has analyzed different manufacturing techniques for two-dimensional Ruddlesden–Popper perovskite solar cells. These cells offer improved photostability and environmental stability compared with their three-dimensional counterparts.
Vehicle-integrated solar kit may reduce frequency of recharging by 14%
Developed by the French research institute Liten, the prototype kit consists of a 145 W photovoltaic panel, a magnetic rear panel, and an MPPT charge controller. It also includes a battery and a micro-inverter that can be used to inject the stored energy into the grid when the vehicle is recharged.
Inverted perovskite solar cell achieves 22.31% efficiency via novel electron-accepting interlayer
A Korean research group has built an inverted perovskite cell that is able to retain 91.7% of its initial efficiency after 1,000 h under standard illumination conditions. They built the device with an electron-accepting interlayer that also acts as charge transport.
Floating solar for water pumping
A community in Spain is using a 1.6 MW floating PV array to power water pumps for irrigation purposes. Spanish specialist Isigenere provided its technology for the project.
Hydrogen to play limited role in building energy supply
How much hydrogen is actually needed? Several German research institutes have examined 40 energy scenarios for hydrogen ramp-up and found that 15 million GWh of hydrogen will be needed worldwide by 2050.
Q Energy France unveils pilot PV system for hydroponics
The prototype system covers an area of 250 m² and is equipped with a rainwater recovery system. Q Energy France and its partner Aquacosy are now looking for land for a larger project.
Pumped hydro storage for rivers, coastal lines
Scientists in Germany have developed a new methodology to identify suitable areas for pumped hydro storage projects close to rivers or shorelines. Their new method considers parameters such as the minimum required flat area for the reservoir, the allowable slope of the terrain, the minimum head, and minimum required head to distance ratio between two reservoirs.
Cadmium-free kesterite solar cell with 9.7% efficiency
Researchers in China developed a new kesterite solar cell they say has improved efficiency and stability. The device was able to retain around 90% of its initial efficiency after 100 days without encapsulation.
Longi achieves 26.12% efficiency for gallium-doped p-type heterojunction solar cell
The result, confirmed by Germany’s Institute for Solar Energy Research Hamelin (ISFH), was achieved on a heterojunction solar cell based on an M6 wafer.
