A5024092760- Nanocluster Synthesis and Applications
- Advanced Nanomaterials in Catalysis
- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Gold and Silver Nanoparticles Synthesis and Applications
- Liquid Crystal Research Advancements
- Carbon and Quantum Dots Applications
- Polydiacetylene-based materials and applications
- Luminescence and Fluorescent Materials
Carnegie Mellon University
2023-2025
Jadavpur University
2021
One of the important factors that determine photoluminescence (PL) properties gold nanoclusters pertain to surface. In this study, four Au52(SR)32 feature a series aromatic thiolate ligands (-SR) with different bulkiness at para-position are synthesized and investigated. The near-infrared (NIR) (peaks 900-940 nm) quantum yield (QY) is largely enhanced decrease in ligand's para-bulkiness. Specifically, capped least bulky p-methylbenzenethiolate (p-MBT) exhibits highest PLQY (18.3% room...
The exploration of near-infrared photoluminescence (PL) from atomically precise nanoclusters is currently a prominent area interest owing to its importance in both fundamental research and diverse applications. In this work, we investigate the (NIR) mechanisms two structural isomers gold 28 atoms protected by cyclohexanethiolate (CHT) ligands, i.e., Au28i(CHT)20 Au28ii(CHT)20. Based on their structures, analysis 3O2 (triplet oxygen) quenching nanocluster triplet states, temperature-dependent...
For the majority of gold nanoclusters (NCs), their water insolubility, low photoluminescence (PL) intensity, and less understood photostability are three critical factors that limit application in biomedical photocatalysis fields. In this study, we report a polymer wrapping method for phase transfer organic soluble NCs into aqueous without degrading electronic optical properties, such materials further demonstrated robust water. We first synthesized Au18(DMBT)14 NC (DMBT =...
We report here a new green fluorescent organic crystal of an amide functionalized acrylonitrile derivative ( E -ArF 2 ) that displays various types macroscopic response when illuminated with UV light (390 nm).
Highly emissive gold nanoclusters (NCs) in the near-infrared (NIR) region are of wide interest, but challenges arise from excessive nonradiative dissipation. Here, we demonstrate an effective suppression motions surface motifs on Au