Wed Sep 18 13:58:00 UTC 2024: ## Transparent Solar Cells Take a Leap Forward with Modularization Breakthrough

**Ulsan, South Korea** – A research team at the Ulsan National Institute of Science and Technology (UNIST) has made a significant breakthrough in transparent solar cell technology, paving the way for widespread adoption of this innovative energy source. The team has developed a modularization approach that allows for the seamless integration of individual transparent solar cells into larger, practical modules, addressing a key obstacle in scaling the technology for real-world applications.

This breakthrough utilizes crystalline silicon (c-Si), the most common and efficient photovoltaic material, in a novel modular design. The team’s “Seamless Modularization” technology eliminates the gaps between solar cells, eliminating the need for metal wires and preserving the aesthetically pleasing glass-like appearance.

In a practical demonstration, the researchers successfully charged a smartphone using natural sunlight, proving that a mobile device’s screen can act as an energy source. This showcases the technology’s potential for integration into various applications, including smartphones, car windows, and building facades.

The researchers achieved a peak power conversion efficiency of 15.8 percent with an average visible transmittance of 20 percent in their 16 cm² transparent solar cell module. This efficiency level is comparable to traditional silicon solar panels, highlighting the technology’s potential to revolutionize energy generation.

Professor Kwanyong Seo, who led the research, stated that the breakthrough opens a new path for modularization research, which is crucial for commercializing transparent silicon solar cells. He emphasized the team’s commitment to further research, aiming to make transparent solar cells a key technology in the future of eco-friendly energy.

The building-integrated photovoltaics (BIPV) market, which includes transparent solar cells, is projected to reach $86.7 billion by 2031. The UNIST research is a testament to the growing interest and investment in this burgeoning market, bringing the promise of clean, transparent energy closer to reality.

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