Assessing fractures in G12 monocrystalline wafer processing
Scientists in China have investigated the fracture strength of commercial G12 monocrystalline wafers via the 4-point bending test and have found that wafer thickness, the position of the silicon wafer in the silicon brick, and the bending test direction are key parameters to develop future strategies aimed at reducing fractures.
Duffing oscillator can increase low output voltages in PV systems at dawn, sunset
Scientists have utilized a device based on the Duffing oscillator to solve the problem of PV systems’ low efficiency at low input voltages at dawn and sunset. Its performance was reportedly better than that of a conventional DC-DC boost converter in amplifying weak input voltages.
Longi introduces 665 W HPBC photovoltaic modules
The Chinese PV manufacturer said its new module series has a power conversion efficiency of up to 24.8% and temperature coefficient is -0.26% per C.
French startup unveils new floating PV tech based on aluminum
HeliosLite has developed new aluminum floaters that can be assembled and deployed at an on-site mini factory. It presented a prototype PV system based on the new floating tech this week in southern France.
Researchers capture first-ever images of electric charges across semiconductor materials within a solar cell
A team from the University of California Santa Barbara used ultrafast electron microscopy to record photocarriers as they diffuse across a silicon and germanium heterojunction. It is the first time the movement, which lasts picoseconds, has been captured as a moving visual.
European TOPCon solar module prices inched lower on weaker demand
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.
JA Solar files patent infringement lawsuit against Astronergy
JA Solar has filed two patent lawsuits against Astronergy in the Unified Patent Court (UPC). The proceedings are related to the tunneling silicon oxide (SiO2) layers, the doped polysilicon layer, and the electrodes used in tunnel oxide passivated contact (TOPCon) solar products.
Solar cell based on ferroelectric 2D/3D/2D perovskite junction achieves 24% efficiency
The experimental device achieved an open-circuit voltage of 1.21 V, which is the highest value reported to date for highly efficient perovskite photovoltaics. The cell is based on a photo-ferroelectric 2D/3D/2D perovskite junction integrating a 2D ferroelectric perovskite single crystals in the perovskite bulk.
Runergy urges US authorities to revoke two of Trina Solar’s TOPCon patents
Runergy is pushing the US Patent and Trademark Office (USPTO) to cancel Trina Solar’s tunnel oxide passivated contact (TOPCon) patents, US9,722,104 and US10,230,009.
Rayzon Solar to expand PV module capacity to 12 GW by September 2025
Rayzon Solar currently has 4 GW of PV module manufacturing capacity and plans to add 3 GW by December, followed by another 5 GW by September 2025. This will increase its cumulative module capacity to 12 GW per year. The company also plans to build a 1.2 GW cell line by the end of 2025.
