4 research outputs found

    NIR-to-VIS Upconversion of ErÂłâș in Host Materials with Low-Energy Phonons

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    Intense NIR-to-VIS upconversion luminescence is observed in Er3+-doped heavier halide host materials such as chlorides and bromides. The multiphonon relaxation rate is found to be a crucial factor in the chemical tuning of the excited-state properties
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