JinkoSolar achieves world record efficiency of 27.79% for TOPCon solar cell
The Chinese manufacturer says Germany’s Institute for Solar Energy Research Hamelin (ISFH) has independently verified the result.
Toyo strikes solar cell supply deal with Voltec Solar
Japanese TOPCon specialists Toyo will become the official solar cell supplier of French solar panel manufacturer Voltec Solar, following the signing of a strategic partnership that marks Toyo’s first entry into the European market.
The impact of soldering flux on TOPCon solar cell degradation
UNSW researchers have investigated the impact of two types of soldering fluxes on TOPCon solar modules under damp heat conditions and have found that “no-clean” soldering fluxes can cause severe corrosion of front silver-aluminum contacts. The researchers have also found that denser metallisation structures and lower aluminium content improve corrosion resistance.
New research warns of unexpected UV-induced degradation in TOPCon solar cells from invisible light
Researchers from UNSW have found that invisible light accelerates UV-induced degradation in TOPCon solar cells, producing the same degradation effects as visible light but at a much faster rate. This can lead to significant open-circuit voltage losses and reduce cell efficiency.
Improving LECO-compatible silver pastes to ensure TOPCon reliabilty
Researchers in China have created new silver pastes for TOPCon solar cell LECO manufacturing. The new pastes integrate either aluminum, gallium or iron and can reportedly keep cells’ electrodes securely anchored to the silicon cell surface due to the enhanced stability of the lead oxide (PbO) component in the glass powder.
TOPCon solar cell built with silver-doped nickel metallization achieves 23.66% efficiency
Scientists in Turkiye claim to have developed a nickel-based TOPCon solar cell with a minimal silver content and almost the same efficiency as fully silver metallized counterparts. The device uses a new nickel contact method that requires a trace of silver of only 0.5 mg/W.
Silver-lean screen-printing can reduce silver use in TOPCon solar cells by 40%
An international research team has developed a metallization technique for TOPCon solar cells that can reportedly reduce silver usage in the devices’ rear side by 85%. The scientists replaced the commonly used Ag fingers with intermittent Ag dashes for contact formation and Ag-free fingers and busbars for electrical conduction.
Jolywood’s laser-assisted firing process increases TOPCon solar cell efficiency by 0.6%, says UNSW research
New research from the University of New South Wales have found that the Special Injected Metallization (JSIM) technique developed by Chinese manufacturer Jolywood can considerably increase TOPCon solar cell efficiency. The scientists described precisely how laser-assisted firing enhances cell performance, reportedly filling critical gaps in industrial TOPCon cell optimization.
EVA-induced degradation has significant impact on power losses in TOPCon solar modules
New research from UNSW shows that EVA-encapsulated TOPCon solar modules under damp-heat testing can suffer significant power losses and fill factor drops. The study describes metallization degradation mechanisms driven by EVA-generated contaminants and demonstrates the effectiveness of metallization adjustments in reducing EVA-induced degradation rates
Current UV tests overestimate TOPCon solar module degradation
Fraunhofer Institute for Solar Energy Systems ISE (Fraunhofer ISE) has found that current UV testing methods overestimate degradation in tunnel oxide passivated contact (TOPCon) solar modules, as dark storage after UV exposure causes temporary efficiency losses that largely reverse under sunlight.
