The Japan Industrial Technology Research Institute, in collaboration with Sustainable Titania Technology, has introduced a groundbreaking technique to effectively mitigate potential induced degradation (PID), a common issue that significantly reduces the efficiency of solar cell modules. This innovative solution involves applying a low-cost material coating to glass substrates using a straightforward method, making it a promising and scalable approach for addressing PID in the solar industry.
The technology utilizes a thin film composed of titanium oxide (TiO₂)-based composite metal compounds, which is applied to the glass surface through a "Doctor Blade" method. This process involves spreading a solution containing the raw materials evenly across the entire substrate using a metal blade or rod. After the coating is applied, the material is dried and then heat-treated at temperatures ranging from 200°C to 450°C for 15 minutes, ensuring strong adhesion and stability.
Testing on a 18cm×18cm solar module demonstrated remarkable results. When subjected to a PID test (-1000V, 85°C, 2 hours), the conversion efficiency remained largely stable, showing minimal reduction. In contrast, conventional modules experienced a drastic drop in efficiency, from 15.9% to just 0.6%. The suppression of PID is believed to be due to the barrier effect of the TiO₂-based film, which prevents the migration of sodium ions from the glass, a primary cause of the degradation.
Looking ahead, researchers plan to refine the material composition, optimize the film thickness, and adjust the deposition conditions to further enhance the effectiveness of the technology. Additionally, they aim to explore the underlying mechanisms of PID suppression and conduct large-scale testing on bigger modules to validate its performance in real-world applications.
This development will be presented at the “Production Research Institute Photovoltaic Power Generation Engineering Research Center Results Report 2013†conference, held at the Tsukuba International Conference Center from June 4 to June 5, 2013. The findings represent a significant step forward in improving the reliability and longevity of solar panels, potentially boosting their efficiency and economic viability in the renewable energy sector.
Thrust Roller Bearing,Thrust Cylindrical Roller Bearing,Thrust Ball Bearing,Spherical Roller Thrust Bearing
Shanghai Yi Kai Cheng bearing Co., LTD , https://www.ykchbearing.com