solar cell

The China Nonferrous Metals Industry Association (CNMIA) says polysilicon and wafer prices continued to fall this week, with n-type re-feed and dense polysilicon down 6.39% and 6.42% to an average of CNY 45,200/ton ($6,240).

In a new weekly update for pv magazine, OPIS, a Dow Jones company, provides a quick look at the main price trends in the global PV industry.

Researchers in Japan have achieved a 12.28% efficiency in a copper gallium selenide solar cell, the highest reported for indium-free wide-bandgap chalcogenide absorbers in the 1.65–1.75 eV range. The device uses aluminum-engineered films with a back-surface field and optimized cadmium sulfide buffer layers to enhance voltage, reduce recombination, and improve overall performance.

Solar manufacturer Swift Solar has acquired the heterojunction technology (HJT) intellectual property and manufacturing assets of Meyer Burger to establish domestic cell production.

Researchers from Australian National University and Longi used photoluminescence imaging to analyze dopant distributions in RCz-grown silicon wafers doped with antimony, phosphorus, and gallium, finding highly uniform radial concentration profiles suitable for high-efficiency solar cells. The study also found that antimony-doped wafers provide more stable axial doping along the ingot, highlighting their potential for next-generation photovoltaic manufacturing.

Researchers have developed a PFAS-free dual-layer sol-gel and hydrophobic silica coating that repels water, dust, and dirt while maintaining high light transmission for solar panels. The transparent, self-cleaning coating improved photovoltaic efficiency from 13.90% to 14.56%, demonstrating strong durability and potential for future commercial applications.

Researchers from Nanchang University and Trina Solar found that TOPCon solar modules exhibit metastable “degradation–recovery” under UV exposure, with light soaking fully restoring performance and no impact on real-world energy yield. Their findings highlight the need to refine UV testing standards to better reflect field performance and guide PV reliability assessments.

Canadian researchers proposed a laminate-free solar module using polycarbonate instead of EVA and glass. The new encapsulation technique reportedly enables easy disassembly, reuse of solar cells, and open-source local manufacturing.

In an interview with pv magazine, Empa scientist Mirjana Dimitrievska explains that the CIGS photovoltaic technology, while promising for efficiency and flexible applications, faces persistent challenges in scaling lab-level performance to cost-effective, high-throughput industrial production, limiting its ability to compete with crystalline silicon. She also emphasizes that long-term stability, reliability, and material sustainability, rather than peak efficiency, are crucial for commercial viability, especially in niche markets like building-integrated and lightweight PV.

Qcells says it has resumed solar panel production at its Georgia manufacturing facilities after US Customs and Border Protection released seven solar cell shipments from South Korea that had been held under the Uyghur Forced Labor Prevention Act (UFLPA), forcing a furlough of 1,000 workers and temporarily halting output at the second-largest module factory in the United States.