Figure 2: Splitting of the 4f65d1 electronic level and crystal structure in Sr1-(x+y)CaxEuyS. | Nature Communications

Figure 2: Splitting of the 4f65d1 electronic level and crystal structure in Sr1-(x+y)CaxEuyS.

From: Solar spectral conversion for improving the photosynthetic activity in algae reactors

Figure 2

Electronic splitting occurs as a result of increasing crystal field strength 10Dq (a). The normalized X-ray diffraction patterns of the rock-salt structure of Sr1-(x+y)CaxEuyS (b) are shown in c. The values of x and y are indicated in the labels. A shift of the diffraction peaks to larger angles indicates lattice contraction. a.u., arbitrary unit.

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