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Adjusting oxygen distribution in Czochralski silicon crystal growth

Researchers in Taiwan have discovered that in polysilicon production the crucible angular speed affects the oxygen concentration near the crucible wall, which in turn affects the wafers’ mechanical and electrical properties. They simulated a Czochralski process for an ingot with a diameter of 200 mm diameter and a length of 700 mm.

Rechargeable magnesium batteries for grid-scale storage

Researchers in Japan have developed a novel cathode material for rechargeable magnesium batteries (RMBs) in the form of rocksalt oxide. This new material reportedly enables efficient charging and discharging even at low temperatures.

Solar module cooling tech based on waste neem oil

An international research team has placed a neem oil tank on the back of solar modules for cooling purposes. The proposed solution reportedly improves PV panel performance by up to 17.8%.

Key takeaways from Advanced Battery Power + V2G conference

Battery research is advancing to address issues in the lithium-ion development process and concerns about safety and aging. Vehicle-to-everything (V2X) tech, meanwhile, is in the starting blocks, but interoperability is the key hurdle to achieving mass market penetration.

EU Ecodesign and Energy labels for solar risks fall short of objectives, says coalition

Representatives from the European Solar Manufacturing Council, Ultra Low Carbon Solar Alliance, PVthin, and the Environmental Coalition on Standards have proposed changes to the carbon footprint accountability methodology, the use of green certificates, and planned design of the Energy Label for PV products.

Glint Solar adds PV degradation maps to utility-scale developer software

The Norwegian PV planning software company said it added the new PV degradation maps to pinpoint site locations with favorable climatic conditions.

How much polysilicon is enough

TU Delft researchers have proposed a new approach for solar cell manufacturing that implies gauging wafer thickness depending on the regions where the cells and modules will be deployed. They also suggested to adopt test conditions that are representative of the outdoor working condition of solar cells in an alternative to standard testing conditions.

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Photovoltaics for cold storage

Researchers in China have developed a photovoltaic cold storage system that is reportedly able to improve refrigeration capacity and ice storage rate. The system is said to ensure a stable cooling system operation for the refrigeration needs of agricultural products.

Alpha Innotec launches new residential heat pumps

The German manufacturer said the new air-to-water systems are part of its Hybrox series. Their coefficient of performance is between 4.3 and 5.3 and their size ranges from 11 kW to 16 kW.

Indian researchers develop solar cell from living algae

The researcher team, from Amrita Vishwa Vidyapeetham university in Coimbatore, India, sandwiched macroalgae between a carbon-coated copper electrode and a titanium oxide-coated fluorine-doped tin oxide electrode. The 1 cm2 device exhibited a 1.25 mA photocurrent and 0.5 V photovoltage under UV light.

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