Effective surface passivation of monocrystalline silicon (c-Si) solar cells is essential for identifying and reducing bulk defects to improve efficiency.
The study introduces Nafion, an organic copolymer, as a room-temperature passivation method for Czochralski (Cz) Si wafers, tested alongside traditional methods like AlO and liquid HF/HCl.
Results indicate that Nafion offers similar or superior passivation effects at room temperature, maintaining quality for about 24 hours, making it a viable alternative for investigating bulk defects in c-Si solar technology.