Luminescence enhancement of ZnS:Mn nanoclusters in zeolite

Wei Chen; Ramaswami Sammynaiken; Yining Huang

doi:10.1063/1.1314903

Luminescence enhancement of ZnS:Mn nanoclusters in zeolite

Wei Chen^*, Ramaswami Sammynaiken, Yining Huang

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

92 Citations (Scopus)

Abstract

The luminescence intensity of Mn²⁺ in the ZnS:Mn nanoclusters formed in an ultrastable zeolite-Y is seven orders of magnitude stronger than that of other nanoparticles deposited out of solutions. This remarkable effect is attributed to a strong quantum size confinement, the location of Mn²⁺ ions at the near-surface sites, and good surface passivation. The lowering of the energy loss in the ⁴E(⁴D), or/and ⁴T₂(⁴D) states during the energy transfer from the ZnS host to the emitting state ⁴T₁(⁴G) of Mn²⁺ may also contribute to the observed fluorescence enhancement.

Original language	English
Pages (from-to)	5188-5193
Number of pages	6
Journal	Journal of Applied Physics
Volume	88
Issue number	9
DOIs	https://doi.org/10.1063/1.1314903
Publication status	Published - 1 Nov 2000
Externally published	Yes

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abstract = "The luminescence intensity of Mn2+ in the ZnS:Mn nanoclusters formed in an ultrastable zeolite-Y is seven orders of magnitude stronger than that of other nanoparticles deposited out of solutions. This remarkable effect is attributed to a strong quantum size confinement, the location of Mn2+ ions at the near-surface sites, and good surface passivation. The lowering of the energy loss in the 4E(4D), or/and 4T2(4D) states during the energy transfer from the ZnS host to the emitting state 4T1(4G) of Mn2+ may also contribute to the observed fluorescence enhancement.",

author = "Wei Chen and Ramaswami Sammynaiken and Yining Huang",

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AU - Chen, Wei

AU - Sammynaiken, Ramaswami

AU - Huang, Yining

PY - 2000/11/1

Y1 - 2000/11/1

N2 - The luminescence intensity of Mn2+ in the ZnS:Mn nanoclusters formed in an ultrastable zeolite-Y is seven orders of magnitude stronger than that of other nanoparticles deposited out of solutions. This remarkable effect is attributed to a strong quantum size confinement, the location of Mn2+ ions at the near-surface sites, and good surface passivation. The lowering of the energy loss in the 4E(4D), or/and 4T2(4D) states during the energy transfer from the ZnS host to the emitting state 4T1(4G) of Mn2+ may also contribute to the observed fluorescence enhancement.

AB - The luminescence intensity of Mn2+ in the ZnS:Mn nanoclusters formed in an ultrastable zeolite-Y is seven orders of magnitude stronger than that of other nanoparticles deposited out of solutions. This remarkable effect is attributed to a strong quantum size confinement, the location of Mn2+ ions at the near-surface sites, and good surface passivation. The lowering of the energy loss in the 4E(4D), or/and 4T2(4D) states during the energy transfer from the ZnS host to the emitting state 4T1(4G) of Mn2+ may also contribute to the observed fluorescence enhancement.

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JO - Journal of Applied Physics

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Luminescence enhancement of ZnS:Mn nanoclusters in zeolite

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