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Mn Doped AIZS/ZnS Nanocrystals: Synthesis and Optical Properties.

ABSTRACT: In this work, Mn doped AIZS/ZnS (Mn:AIZS/ZnS) nanocrystals (NCs) have been synthesized in an approach using heat-up and drop-wise addition of precursors. On the basis of the characterization of these doped NCs on their optical properties and materials, it is found that: (1) as more Mn atoms are doped into NCs, the doped NCs present photoluminescence (PL) red-shift and quantum yield quenching; (2) the doped NCs possess a short PL lifetime in tens of microseconds and a long PL lifetime in hundreds of microseconds, and the short lived PL is more dominant than the long lived one; and (3) the doped NCs present a reversible PL thermal quenching in a range from room temperature to 170°C. Possible PL mechanisms of these NCs were discussed by analyzing their time-resolved PL spectra and thermal stability.

SUBMITTER: Chen S

PROVIDER: S-EPMC5724564 | biostudies-literature | 2017 Nov

REPOSITORIES: biostudies-literature

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Mn Doped AIZS/ZnS Nanocrystals: Synthesis and Optical Properties.

Chen Siqi S Zaeimian Masoumeh Saber MS Monteiro Jorge H S K JHSK Zhao Jialong J Mamalis Athanasios G AG de Bettencourt-Dias Ana A Zhu Xiaoshan X

Journal of alloys and compounds 20170728

In this work, Mn doped AIZS/ZnS (Mn:AIZS/ZnS) nanocrystals (NCs) have been synthesized in an approach using heat-up and drop-wise addition of precursors. On the basis of the characterization of these doped NCs on their optical properties and materials, it is found that: (1) as more Mn atoms are doped into NCs, the doped NCs present photoluminescence (PL) red-shift and quantum yield quenching; (2) the doped NCs possess a short PL lifetime in tens of microseconds and a long PL lifetime in hundreds ...[more]

PMID: 29242679

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