What if the humble pandan leaf—commonly used in kitchens for its fragrance—could help power our homes? This idea is no longer just imagination. Recent scientific research shows how natural materials like pandan leaves can play a role in creating eco-friendly solar energy technology.
A study titled “Scattering Layers for Titanium Dioxide and Tin Dioxide Dye-sensitized Solar Cells with Pandan Leaf as a Natural Sensitizer”, published in the Journal of Sustainable Development of Energy, Water and Environment Systems by the Međunarodni centar za održivi razvoj, energetike, voda i okoliša on September 30, 2024, explores this exciting innovation. The research focuses on dye-sensitized solar cells (DSSCs), a type of solar technology that is cheaper and easier to produce than traditional silicon-based solar panels.
Unlike conventional solar panels, DSSCs use a dye to absorb sunlight and convert it into electricity. In this study, researchers used extract from pandan leaves as a natural dye. Why pandan? Because it contains pigments that can absorb sunlight effectively—making it a sustainable and environmentally friendly alternative to synthetic chemicals.
The scientists also experimented with two materials: titanium dioxide (TiO₂) and tin dioxide (SnO₂), which act as semiconductors in the solar cells. To improve performance, they added a “scattering layer,” which helps trap more light inside the cell. Think of it like placing mirrors inside a room to reflect light around—this increases the chance that sunlight will be absorbed and converted into energy.
The results were promising. The use of pandan leaf dye, combined with optimized scattering layers, showed improved light absorption and energy conversion efficiency. While the efficiency is still lower than commercial solar panels, the real advantage lies in cost, sustainability, and accessibility.
This innovation directly supports Sustainable Development Goal (SDG) 7: Affordable and Clean Energy. In many parts of the world, especially rural or low-income communities, access to electricity remains limited. High costs of conventional solar panels can be a barrier. By using natural, locally available materials like pandan leaves, the production of solar cells can become more affordable and environmentally friendly.
Moreover, this approach reduces reliance on toxic chemicals, making it safer for both humans and the environment. It also opens opportunities for local communities to participate in energy production, potentially creating jobs and supporting local economies.
Beyond energy, this research highlights the importance of creativity in science. It shows that solutions to global challenges don’t always require complex or expensive materials. Sometimes, answers can be found in everyday plants around us.
In conclusion, the use of pandan leaves in solar technology is more than just a scientific experiment—it is a step toward a cleaner, more inclusive energy future. By combining innovation with sustainability, we move closer to achieving SDG 7 and ensuring that everyone has access to affordable and clean energy.
The next time you smell pandan in your food, remember: it might also be part of the future of renewable energy.
DOI: https://doi.org/10.13044/j.sdewes.d12.0491