CHIMIA (Mar 1997)

NIR-to-VIS Upconversion of Er3+ in Host Materials with Low-Energy Phonons

  • Toni Riedener,
  • Hans U. Güdel

Journal volume & issue
Vol. 51, no. 3

Abstract

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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.