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. 2023 Jun 22;13(28):19013–19019. doi: 10.1039/d3ra03110a

The energy of the system values for the crystal structures of Eu2+ and Yb2+ cations in perovskite.

Energy of the system (eV) Energy of the system (eV)
CsEuCl3 –21.04 CsYbCl3 –20.57
CsEuBr3 –19.01 CsYbBr3 –16.60
CsEuI3 –16.69 CsYbI3 –16.06
MAEuCl3 –57.95 MAYbCl3 –57.34
MAEuBr3 –55.95 MAYbBr3 –55.31
MAEuI3 –53.67 MAYbI3 –52.97
FAEuCl3 –63.07 FAYbCl3 –62.35
FAEuBr3 –61.12 FAYbBr3 –60.39
FAEuI3 –58.89 FAYbI3 –58.16