Using light with hemispheres

A hemispherical-shell-shaped organic active layer for photovoltaic application, to improve energy efficiency and angular coverage; (Bottom left) Spatial distribution of electric field principles. Credit: D. Hah, doi 10.1117/1.JPE.14.018501.

In pursuit of sustainable energy solutions, finding more efficient solar cells is paramount. Organic photovoltaic cells have emerged as a promising alternative to conventional silicon-based counterparts due to their flexibility and cost-effectiveness. However, improving their performance remains a significant challenge.

In a major move, new research from Abdullah Gul University (Türkiye) has reimagined the structure of organic photovoltaic cells, choosing a hemispherical shell shape to unlock unprecedented potential. and angular coverage.

As reported in Journal of Photonics for Energy, this innovative configuration aims to maximize light absorption and angular coverage, which promises to redefine the landscape of renewable energy technologies. The study presents advanced computational analysis and comparative benchmarks to highlight the remarkable capabilities of this new design.

In the study, Abdullah Gul University Professor Duyong Ha conducted the investigation. Inside the hemispherical shell-shaped active layer, a computational technique called three-dimensional finite element analysis (FEA) provides a detailed examination of how light interacts with the cell’s structure and materials. Is.

FEA can help solve complex engineering problems by breaking down structures into smaller, more manageable parts called finite elements, which are the entire structure under different conditions, such as different light wavelengths and angles of incidence. Allows simulation and analysis of the behavior of

The reported FEA results are noteworthy. When subjected to transverse electric (TE) polarized light, the hemispherical shell structure showed a remarkable 66% increase in light absorption compared to flat structured devices. Similarly, for transverse magnetic (TM) polarized light, a remarkable 36% improvement was observed.

In contrast to the previously reported semi-cylindrical shell design, the hemispherical shell structure was clearly revealed. It claimed a significant 13% increase in light absorption for TE polarization and an impressive 21% improvement for TM polarization.

Bright Future: Illuminating Diverse Applications

Beyond its exceptional absorption capabilities, the hemispherical shell structure offers extended angular coverage, spanning 81 degrees for TE polarization and 82 degrees for TM polarization. This adaptation is particularly beneficial for applications that require flexible light capture, such as wearable electronics.

“With improved absorption and omnidirectional properties, the proposed hemispherical-shell-shaped active layers will be beneficial in various fields of application of organic solar cells, such as biomedical devices, as well as applications such as power,” says Ha. Generation Windows and Greenhouses, Internet of Things etc.”

The hemispherical shell shape marks a significant leap forward in organic solar cell design. By harnessing the power of finite element analysis and advanced structural engineering, the research reported helps pave the way for a brighter, more. Powered by renewable energy.

More information:
Dooyoung Hah, Hemispherical-shell-shaped organic photovoltaic cells for absorption enhancement and improved angular coverage, Journal of Photonics for Energy (2024). DOI: 10.1117/1.JPE.14.018501

Reference: Harnessing light with hemispherical shells for improved photovoltaics (2024, February 16) Retrieved February 17, 2024 from https://phys.org/news/2024-02-harnessing-hemispherical-shells-photovoltaics.html went

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