Fig. 2: Schematic representation of allowed interactions. | Nature Communications

Fig. 2: Schematic representation of allowed interactions.

From: Resolving energy transfer dynamics in Eu²⁺-activated multi-site phosphors via metaheuristic optimization and physics-informed neural networks

Fig. 2: Schematic representation of allowed interactions.The alternative text for this image may have been generated using AI.

Only the La/Ca1 and La/Ca2 sites are depicted in the La2.544Ca1.456Si12O4.456N16.544 supercell. Excited states are shown as bright colors, ground states as dim colors, and the four types of activators are indicated in different colors. The excited-state number density follows the calculated data for G = 10 s−1, clearly showing an increase with elapsed delay time.

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