fig4
![Chemical unit co-substitution enabling broadband and tunable near-infrared emission in garnet-type Lu<sub>3</sub>Sc<sub>2</sub>Ga<sub>3</sub>O<sub>12</sub>:Cr<sup>3+</sup> phosphors](https://image.oaes.cc/e74be242-28b8-4a67-b81d-14d0f2b6ebde/5188.fig.4.jpg)
Figure 4. (A) Photograph and luminescence spectra of as-fabricated NIR pc-LED. (B) NIR output power and photoelectric efficiency of pc-LED measured at current from 20 to 300 mA. (C) Photographs of bouquet under natural and NIR light captured by different cameras. (D) Photographs of NIR light transilluminating human palm.