Takuro Iizuka graduated from Yamagata University and is currently a first year master degree student. He is engaged in research focused on improving the photostability of perovskite nanocrystals. His work aims to address key challenges in the practical application of perovskite-based materials in optoelectronic devices by enhancing their long-term stability under light exposure. Through this research, he contributes to the development of more durable and efficient optical materials for next-generation technologies such as X-ray scintillators and bio-imaging. and light-emitting devices.