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Effective Mn-Doping in AgInS?/ZnS Core/Shell Nanocrystals for Dual Photoluminescent Peaks.

ABSTRACT: We developed the effective Mn-doping procedure for AgInS?(AIS)/ZnS core/shell nanocrystals (NCs) to exhibit dual photoluminescence (PL) peaks. Although the AIS/ZnS core/shell NCs showed solely a single PL peak at ~530 nm, incorporation of a small amount of Mn as a dopant within the AIS/ZnS NCs resulted in the simultaneous emergence of dual PL peaks at ~500 nm (green PL) arising from AIS/ZnS NCs and ~600 nm (orange PL) from the Mn dopants. Furthermore, we succeeded in significantly increasing the absolute PL quantum yield value of dual emissive AIS/ZnS NCs incorporated with Mn dopants from 10% to 34% after surface passivation with another ZnS shell for the formation of core/shell/shell structures.

SUBMITTER: Sakai R

PROVIDER: S-EPMC6410175 | biostudies-literature | 2019 Feb

REPOSITORIES: biostudies-literature

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Effective Mn-Doping in AgInS₂/ZnS Core/Shell Nanocrystals for Dual Photoluminescent Peaks.

Sakai Ryo R Onishi Hikaru H Ido Satomi S Furumi Seiichi S

Nanomaterials (Basel, Switzerland) 20190214 2

We developed the effective Mn-doping procedure for AgInS₂(AIS)/ZnS core/shell nanocrystals (NCs) to exhibit dual photoluminescence (PL) peaks. Although the AIS/ZnS core/shell NCs showed solely a single PL peak at ~530 nm, incorporation of a small amount of Mn as a dopant within the AIS/ZnS NCs resulted in the simultaneous emergence of dual PL peaks at ~500 nm (green PL) arising from AIS/ZnS NCs and ~600 nm (orange PL) from the Mn dopants. Furthermore, we succeeded in significantly increasing the ...[more]

PMID: 30769899

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