Lead-free perovskite-based hole transport material composites, solar cells including the same, and method of manufacturing the same

摘要

Provided are a hole transport material composite including a lead-free perovskite (Cs₂SnI₆), a liquid ionic conductor and a solvent that is a solid at a room temperature, a solar cell, and a method of manufacturing the lead-free perovskite-based hole transport material composite.