Figure 2 | Scientific Reports

Figure 2

From: Phellodendron chinense Schneid: A novel yellow-emitting luminescent material for white light-emitting diodes

Figure 2

(a) FT-IR spectrum of Phellodendron phosphor; (b) UV visible absorption spectrum of Phellodendron phosphor; (c) Direct band gap estimation of Phellodendron phosphor; (d) Indirect band gap estimation of Phellodendron phosphor; (e) Relative photoluminescence excitation and emission spectra of Phellodendron phosphor (filled area) and YAG:Ce (dotted curves); (f) The PL decay spectrum of Phellodendron phosphor monitored at the emission peak (orange line). The dash line shown in (f) is a fitting result according to Eq. (2).

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