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solar research

$20 Million federal initiative targets low-emission silicon and thin film research

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.

New quantum solar cell material promises external quantum efficiency of 190%

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.

Gallium arsenide solar cell achieves 23.1% efficiency via electrochemical porosification

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.

Global inventory map of floating photovoltaics

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.

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Thin-film solar development receives $2 million in funding

The National Renewable Energy Laboratory awarded funding to six projects to support its Cadmium Telluride Accelerator Consortium.

NREL adds a lab and announces plans for spending $150 million in IRA funding

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.

Sunrise brief: California utilities commission rejects solar microgrid proposal

Also on the rise: Top PV module manufacturers by shipment volume in 2022. 50 states of solar incentives: Idaho. And more.

Funding opportunity of $6.5 million announced for innovative solar projects

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.

U.S. scientists improve photoresponsivity in solar perovskite by 250%

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.

Flexible cadmium telluride solar cell with 12.6% efficiency via lift-off method

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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