The Solar Energy Technologies Office has launched a dual initiative to propel upstream advancements in a collection of solar cell types, and to reduce the emissions of solar-grade polysilicon under 1 kg CO2 per kg.
The new material consists of an heterostructure combining germanium, selenium, and tin sulfide, which also integrates atoms of zerovalent copper. It features an average photovoltaic absorption over 80% and could help photovoltaic cells break the Shockley-Queisser efficiency limit, according to its creators.
An international research group has utilized a new porosification technique to build gallium arsenide (GaAs) solar cells that allow the recovery of germanium films. The new cell achieved an efficiency that is reportedly in line with that of other GaAs PV devices, but can be produced at a lower cost thanks to the reuse of germanium.
A Chinese-US research group has created an up-to-date spatial datase to identify floating PV systems across the globe. The new tool uses Google Earth images, Sentinel satellite imagery, and multiple spectral indices.
The National Renewable Energy Laboratory awarded funding to six projects to support its Cadmium Telluride Accelerator Consortium.
Energy Secretary Jennifer Granholm was on hand for the opening of the Research and Innovation Laboratory, which will focus on plastics upcycling, next-generation batteries and advanced energy materials.
Also on the rise: Top PV module manufacturers by shipment volume in 2022. 50 states of solar incentives: Idaho. And more.
The Department of Energy and Solar Energy Technologies Office is seeking more novel ideas rather than those based on established technologies, with the intent of the funding being to deploy solar technologies that will support the transition to a decarbonized electricity system by 2035 and energy sector by 2050.
Researchers led by the University of Rochester claim to have increased the photoresponsivity of a lead-halide perovskite for solar cell applications by 250%. They created a perovskite film with a plasmonic substrate made of hyperbolic metamaterial and characterized it with transition dipole orientation.
A U.S. research team has developed a cadmium telluride (CdTe) solar cell through a lift-off method that reportedly ensures higher crystallinity of the cadmium sulfide film. The device has a power conversion efficiency of 12.60%, an open-circuit voltage of 0.829 V, a short-circuit current density of 23.64 mA/cm2, and a fill factor of 64.30%.
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