Post-reduction strategy to enhance near-infrared-II emission from Li4SrCa(SiO4)2:Cr4+ phosphor

Near-infrared-II (NIR-II) luminescence, which serves as a promising spectral window for biomedical applications and spectral analysis, has numerous potential applications. In this work, the NIR-II luminescence is realized in Li4SrCa(SiO4)2:Cr4+...