One-pot synthesis red emission of photoluminescent silane capped gold nanoclusters

H. Y. Huang; L. Y. Chang; C. T. Yuan

doi:10.1117/12.2307329

4 May 2018 One-pot synthesis red emission of photoluminescent silane capped gold nanoclusters

H. Y. Huang, L. Y. Chang, C. T. Yuan

Proceedings Volume 10672, Nanophotonics VII; 106723T (2018) https://doi.org/10.1117/12.2307329
Event: SPIE Photonics Europe, 2018, Strasbourg, France

Abstract

The CdSe-based quantum dots (QDs) have been applied to light-conversion nano-phosphors due to tunable emission and pure colors. However, these cadmium-containing QDs was strongly toxic and synthesized in a hazardous solvent. In addition, conventional QD nano-phosphors with a small Stokes shift suffered from reabsorption losses and aggregation-induced photoluminescence (PL) quenching in the solid state. Therefore, there is a need to develop nanophosphors with a large Stokes shift. Here, we demonstrate one-pot synthesis of gold nanoclusters (AuNCs) using 3- aminopropyltrimethoxysilane (APS) and glutathione as protection ligand with a large Stokes shift. The gold nanoclusters with a large Stokes shift can mitigate the aggregation-induced PL quenching and reabsorption losses, which would be potential candidates for "green" nano-phosphors.

Citation Download Citation

H. Y. Huang, L. Y. Chang, and C. T. Yuan "One-pot synthesis red emission of photoluminescent silane capped gold nanoclusters ", Proc. SPIE 10672, Nanophotonics VII, 106723T (4 May 2018); https://doi.org/10.1117/12.2307329

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