Sajid Saikia, Animesh Ghosh, Diogo Alves Gálico, Claudia Manuela Santos Calado, Muralee Murugesu, Angshuman Nag. "Spin‐Flip Upconversion Luminescence and Tunable Downshifting Near‐Infrared Emissions via 4
                    <i>d</i>
                    ‐4
                    <i>f</i>
                    Interaction in Doped Halide Perovskite." Angewandte Chemie International Edition (2026). https://doi.org/10.1002/anie.7420770