1. Poly+ annealing mechanism ① Depositing a tunneling oxide layer (SiO₂) and a doped amorphous silicon layer on the back to form a selective carrier transport channel (enabling electron tunneling and hole blocking). ② Annealing process: high temperature crystallization of amorphous silicon layer, activation of P phosphorus doping and reduction of contact resistance. 2. Factors […]
Solar manufacturers announced a range of module sales agreements, supply deals and new products last week at SNEC 2025 PV Expo in Shanghai. GCL System Integration (GCL SI) joined China’s Tiangong LCA Data Platform, becoming the first major photovoltaic manufacturer to participate in the national carbon data initiative. The company’s move follows its earlier collaboration […]
*BC module prices in China are now split into ground-mounted and C&I segments; residential and C&I prices are also included for Europe. Polysilicon Buyers, still holding some polysilicon inventory, are pushing prices down to RMB 30–34/kg, with some indications of offers dipping below RMB 30/kg. However, no large-volume deals have been finalized at these levels. […]
I. Exhibition Overview: In-depth Perspective of the Global Photovoltaic Industry From June 11 to 13, 2025, the 18th International Solar Photovoltaic and Smart Energy (Shanghai) Conference and Exhibition (SNEC) was grandly opened at the Shanghai National Convention and Exhibition Center. As one of the largest and most influential industry events in the global photovoltaic field, […]
The Global Polysilicon Marker (GPM), the OPIS benchmark for polysilicon produced outside of China, was assessed at $19.233/kg or $0.040/W this week, reflecting a 0.76% decline from the previous week based on reported buy-sell indications. Pessimism in the global polysilicon market has deepened, driven by a persistent oversupply that exceeds buyers’ total monthly purchasing volumes. […]
Polysilicon Some polysilicon orders have been concluded this week, but the ingot segment still holds inventory, keeping overall procurement slow. Only some small-volume deals have been finalized, and most supply comes from smaller manufacturers, while top makers keep prices steady. Some new orders are trading at RMB 35–37/kg this week, with the overall price range […]
Recently, the research data released by the Daqing Photovoltaic Storage Demonstration Base of the Yellow River Company of the State Power Investment Group has brought important information to the photovoltaic industry. This base is located in Daqing, Heilongjiang, where there is an extremely long snow-covered period and the surface reflectivity is also extremely high. Such […]
Polysilicon Some polysilicon orders have been concluded this week, but the ingot segment still holds inventory, keeping overall procurement slow. Only some small-volume deals have been finalized, mostly at RMB 36–37/kg. China-made granular polysilicon has seen steady deliveries, with mainstream prices at RMB 35–36/kg. U.S. policy changes have disrupted non-Chinese polysilicon makers’ shipments, resulting in […]
Italy’s Ecoprogetti has developed an automated photovoltaic (PV) recycling line capable of separating and recovering up to 100% of aluminum, copper, glass, plastic, and silicon from solar panels. Processing up to 60 panels per hour, the system consumes 40% less energy than other market solutions, combining efficiency with sustainability. As an Italian provider of solar […]
Researchers at Delft University of Technology have developed novel cerium-doped indium oxides (ICO) for heterojunction solar cells, enabling significant improvements in power conversion efficiency through a transparent conductive oxide (TCO) built with the compound. Scientists at TU Delft in the Netherlands fabricated a front-back contact silicon heterojunction (FBC-SHJ) solar cell using a TCO based on […]