File Name : fig.s1.tif

Caption : fig. s1. (a) the excitation and emission spectrum of sctao4:0.02cr3+ at 7 k (b) normalized emission spectrum at 298 k and at 7 k

File Name : fig.s2.tif

Caption : fig. s2. the pl decay curves of the sctao4:0.02cr3+ at 7 k (λex=516 nm)

File Name : fig.12.tif

Caption : figure 12 luminescence spectrum of nir pc-led under different driving currents (a) 460 nm chip preparation; (b) 525 nm chip preparation

File Name : fig.s3.tif

Caption : fig. s3. time resolved spectroscopy of the sctao4:0.02cr3+ sample excited at 516 nm