Figure 4: Quantitative excitation and emission spectra for photoluminescence from Sr0.40Ca0.59Eu0.01S. | Nature Communications

Figure 4: Quantitative excitation and emission spectra for photoluminescence from Sr0.40Ca0.59Eu0.01S.

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

Figure 4

The external quantum efficiency (EQE) was determined from these spectra. For comparison, the data of a reference material (commercial Ce3+-doped yttrium aluminium garnet) is included. The inset depicts the colour coordinates of the Sr0.40Ca0.59Eu0.01S photoluminescence in the CIE 1931 colour space. a.u., arbitrary unit.

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