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

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.

Microstructures
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