Lanthanide-Based Wavelength Conversion Materials

Yasuchika Hasegawa obtained his Ph.D (1997) at the Garaduate School of Engineering, Osaka University and was researcher (1994 – 1999) at New Japan Chemical Co. Ltd. He was assistant professor (1999 – 2005) at Osaka University and associate professor (2005 – 2010) at Nara Institute of Science and Technology. Since 2010 he has been a professor at Hokkaido University. He received the JPA (Japanese Photochemistry Association) Award (2013), the CSJ (The Chemical Society of Japan) Award for Creative Work (2014), Award of the MEXT (Minister of Education, Culture, Sports, Science and Technology) the Commendation for Science and Technology (2016), the ISJ (Imageing Society of Japan) Award (2017), and Award of Rare Earth Society of Japan (2021). His major is study on lanthanide photochemistry.   Yuichi Kitagawa obtained his Ph.D (2012) at School of Engineering, University of Tokyo. He was a research fellow of the Japan Society for the Promotion of Science (JSPS) (2013) at Graduate School of Life Sciences, Ritsumeikan University. He was specially appointed assistant professor (2014-2018) and specially appointed lecturer at Hokkaido University (2019-2021). Since 2021, he has been associate professor at Hokkaido University. He received The Japanese Photochemistry Association Award for Young Scientist (2021), the Encouragement Award from The Chemical Society of Japan (2023, Hokkaido Branch), and The Rare Earth Society Award of Japan for Young Scientist (2024). His major is study on lanthanide photophysics and photochemistry.   Sunao Shoji obtained his Ph.D (2014) at the Graduate School of Life Sciences, Ritsumeikan University. He was a research fellow of the Japan Society for the promotion of Science (JSPS) (2014-2016) and postdoctoral fellow (2016-2019) at Ritsumeikan University. He was postdoctoral fellow (2019-2020) and specially appointed assistant professor (2021-2023) at Hokkaido University. Since 2023 he has been assistant professor at Nara Women’s University. His major is study on lanthanide and porphyrin supramolecular chemistry and photochemistry.

1. Introduction.- 2. Fundamental photophysics of lanthanide complex.- 3. Typical previous applications.- 4. Recent wavelength conversion applications.- 5. Future applications.- 6. Future perspectives.