We report rare evidence of energy transfer from CdSe quantum dots (QDs) to ions in a SNAB glass system using absorption electronic transitions of ion as a nonresonant excitation source. However, the luminescence band was observed at 880 nm ( transition) under 409 nm excitation only when ions were embedded in the SNAB glass system with CdSe QDs. This happened because the ions absorbed the photons emitted by CdSe QDs with 409 nm excitation. Band overlap of the QD luminescence band and the ion optical absorption bands caused photon absorption and produced valleys in the QD luminescence spectrum. This overlap contributed to reduction in the lifetime state.
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