Effects of Single Platinum Atom Doping on Stability and Nonlinear Optical Properties of Ag₂₉ Nanoclusters

Abstract

The properties of atomically precise noble metal nanoclusters can be modified by the addition of other metals, which may offer augmented characteristics, making them more suitable for real-life applications. In this work, we report the effects of single platinum atom doping of a class of atomically precise silver nanoclusters protected by dithiolated ligands on their optical properties both in linear and nonlinear optical (NLO) regimes and on their stability over time. Pt doping of Ag29 preserves their NLO properties (in particular two-photon excited photoluminescence).

Recent progress in dichalcophosphate coinage metal clusters and superatoms

“…Overall, the coreduction strategy is widely used for designing doped superatomic clusters. 60,61 It should also be remarked that doping with foreign metal(s) significantly affects the physical and chemical properties of the clusters, allowing the improvement of their stability 62 and physicochemical performances, 63,64 . 71 The fact that their 8-electron cluster cores are essentially similar to those of the homometallic congeners Ag 20 (Fig.…”

Insights into the effect of regulation of molecular composition on the properties of (AuAg)9clusters

“…7). 42,43 In detail, for the [Au 4 Ag 5 (SAdm) 6 (Dppm) 2 ](BPh 4 ) nanocluster, (i) the fluorescence intensity follows the sequence of Tol < MeOH < CHCl 3 < THF < ACE < DMF < MeCN < EA; (ii) the emission wavelength sequence is MeOH (740 nm) < MeCN (750 nm) < DMF (754 nm) < CHCl 3 (756 nm) < ACE (762 nm) < EA (776 nm) < Tol (784 nm) < THF (794 nm) (Fig. 7A).…”

“…7). 42,43 In detail, for the [Au 4 Ag 5 (SAdm) 6 (Dppm) 2 ](BPh 4 ) nanocluster, (i) the fluorescence intensity follows the sequence of Tol < MeOH < CHCl 3 < THF < ACE < DMF < MeCN < EA; (ii) the emission The DPV current peaks lie at the formal potentials of the nanocluster chargestate couples (Fig. 8).…”

Solvent-Induced Aggregation of Self-Assembled Copper–Cysteine Nanoparticles Reacted with Glutathione: Enhancing Linear and Nonlinear Optical Properties

“…We assume that one-photon PLQY = two-photon PLQY as accepted by the photochemistry community while considering Kasha's rule and Vavilov's rule. 23 The hyper HRS setup has been described elsewhere in previous work by Russier-Antoine and co-workers. 24 The concentration of Cu−Cys−GSH NPs was calculated by extrapolation of mass measurements from CDMS evolution curves with different fractions of ethanol.…”