DK Electronic Materials client adopts copper paste in GW-scale cell output
China-based metallization paste supplier DK Electronic Materials says a major unnamed customer has adopted its high-copper metallization paste for gigawatt-scale solar cell production, combining copper paste with a seed-layer silver paste compatible with n-type and tunnel oxide passivated contact (TOPCon) 3.0 processes.
Scientists achieve 25.4% efficiency in perovskite solar cells with enhanced stability using multivalent ligands
Researchers have used multivalent amidinium ligands to boost perovskite solar cell efficiency to 25.4%, achieving over 95% stability after 1,100 hours at 85 C. The proposed approach enables controlled low-dimensional passivation layers, offering a practical route for durable, large-area perovskite devices.
China’s top regulators summon battery giants, warn against ‘below-cost’ price wars
Four agencies told 16 leading firms to rein in irrational competition as China tightens oversight of power and storage batteries.
TCL Zhonghuan aims for controlling stake in DAS Solar
TCL Zhonghuan has entered exclusive talks to acquire a controlling stake in module manufacturer DAS Solar, marking one of the most significant consolidation moves in China’s photovoltaic manufacturing sector as the industry faces continued financial pressure and overcapacity.
Chinese scientists build 31.13%-efficient perovskite-silicon tandem solar cell via 2D seeding agent
Researchers in China developed a novel two dimensional (2D) seeding agent to regulate crystallization in a 1.80-eV wide-bandgap perovskite film. A perovskite-silicon tandem device made with the resulting optimized subcell achieved an efficiency of 31.13%, outperforming a control device.
Chinese PV Industry Brief: Major solar manufacturers report steep full-year losses
JA Solar, TCL Zhonghuan, JinkoSolar, Trina Solar and Daqo each announced significant losses for full fiscal year 2025 amid continued price declines and overcapacity.
Floating PV could power up to 490,000 households in Hong Kong
Hong Kong has limited land, and researchers have checked how much of the city can be powered if most of its water reservoirs were to be fully or partially covered with floating PV systems. At best, full coverage can supply more than 15% of the city’s total demand, and more than 60% of the residential demand.
China extends anti-dumping duties on solar-grade silicon from US, South Korea
The duties range from 53.3% to 57% for U.S. producers and from 2.4% to 48.7% for South Korean companies and will remain in force for a further five years.
Tongwei unveils 770 W TOPCon PV module with 24.8% efficiency
The Chinese manufacturer unveiled its new TOPCon bifacial TNC3.0 module at WFES 2025. The 1,500 V, IP68-rated panel offers over 85% bifaciality, a 0.26%/C temperature coefficient, and a 30-year warranty guaranteeing 88.85% output.
Chinese scientists push selenium solar cells beyond 10% efficiency
Researchers at the Chinese Academy of Sciences have set a world record for selenium solar cells, achieving 10.3% efficiency for the first time above the 10% threshold. The breakthrough was enabled by optimized charge-selective contacts, light-driven crystallization, and post-deposition annealing, producing stable devices with a 1.03 V open-circuit voltage.
