Nature CommunicationsSuppressing electron–phonon coupling for narrow-band emitting Eu(II)-based perovskitoidsKai HanXuesong WangJiance JinShuai ZhangLiang LiYuzhen WangLixin NingZhiguo Xia2025-07-01Full textDOI https://doi.org/10.1038/s41467-025-60852-9