A paper by Professor Nobuo Kimizuka (Ubiquitous Photon Energy Research Division), Associate Professor Yoichi Sasaki (same division; Faculty of Engineering), and their collaborators published in Nature Communications!
Title ：Sterically protected π-electron systems for efficient solid-state photon upconversion
Authors ：Naoyuki Harada, Hayato Shoyama, Nutnicha Boonmong, Kiichi Mizukami, Yuya Watanabe, Pei Zhao, Masahiro Ehara, Yoichi Sasaki*, Nobuo Kimizuka*
DOI ：10.1038/s41467-026-73898-0
First published online：23 June 2026
