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Haruta, Mitsutaka
in Cooperation with on an Cooperation-Score of 37%
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Publications (4/4 displayed)
- 2024Biomass Waste Utilization as Nanocomposite Anodes through Conductive Polymers Strengthened SiO2/C from Streblus asper Leaves for Sustainable Energy Storagescitations
- 2024Intrinsic Visible Plasmonic Properties of Colloidal PtIn2 Intermetallic Nanoparticlescitations
- 2023Insight into the Role of Conductive Polypyrrole Coated on Rice Husk-Derived Nanosilica-Reduced Graphene Oxide as the Anodes: Electrochemical Improvement in Sustainable Lithium-Ion Batteriescitations
- 2019Formation of strong <i>L</i>1<sub>0</sub>-FePd/α-Fe nanocomposite magnets by visualizing efficient exchange couplingcitations
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article
Intrinsic Visible Plasmonic Properties of Colloidal PtIn2 Intermetallic Nanoparticles
Abstract
aterials that intrinsically exhibit localized surface plasmon resonance (LSPR) in the visible region have been predominantly researched on nanoparticles (NPs) composed of coinage metals, namely Au, Ag, and Cu. Here, as a coinage metal‐free intermetallic NPs, colloidal PtIn2 NPs with a C1 (CaF2‐type) crystal structure are synthesized by the liquid phase method, which evidently exhibit LSPR at wavelengths similar to face‐centered cubic (fcc)‐Au NPs. Computational simulations pointed out differences in the electronic structure and photo‐excited electron dynamics between C1‐PtIn2 and fcc‐Au NPs; reduces interband transition and stronger screening with smaller number of bound d‐electrons compare with fcc‐Au are unique origins of the visible plasmonic nature of C1‐PtIn2 NPs. These results strongly indicate that the intermetallic NPs are expected to address the development of alternative plasmonic materials by tuning their crystal structure and composition.