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Correspondence on "Suppressing Energy Migration via Antiparallel Spin Alignment in One-Dimensional Mn2+ Halide
1MALTA Consolider Team, DCITIMAC, Facultad de Ciencias, Universidad de Cantabria, Santander, 39005, Spain.
Abstract:
The photoluminescence quantum yield (PLQY) of tetramethyl ammonium manganese(II) chloride, (CH3)4NMnCl3 (TMMC), doped with Cd2+/Cu2+ is analyzed through photoluminescence measurements, X-ray diffraction, optical absorption, and time-resolved excitation and emission under hydrostatic pressure. Contrary to recent studies reporting a PLQY increase up to x = Cdx/Mn1-x = 0.08 followed by a decline (from 95% to 77% at x = 0.22),1 we demonstrate that the PLQY remains consistently high (≥95%) across the concentration range x = 0-0.22.
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