2025 ICIEST

Fossil fuels contribute to air pollution and drive climate change. Transitioning to solar energy offers a cleaner alternative. Perovskite solar cells are a promising advancement, potentially exceeding silicon cell efficiencies with simpler, cost-effective manufacturing. This research demonstrates the feasibility of electricity generation using a solution-processed perovskite solar cell under low light in the room building. The fabricated cell achieved an open-circuit voltage of 1.49V and a short-circuit current density of 5.15 mA/cm². A maximum power conversion efficiency of 18.67% was obtained under only around 10% of actual one sun light intensity. Such a high obtained efficiency of solar cell fabricated using inexpensive materials under low light intensity has become our current work novelty. These results highlight the potential of cost-effective perovskite solar cells for indoor and ambient light energy harvesting, supporting a shift towards sustainable energy solutions.