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Journal Articles Advanced Theory and Simulations Year : 2023

Hierarchical nanomaterials by selective deposition of noble metal nanoparticles: Insight into control and growth processes

Abstract

Complex hierarchical metamaterials are currently the focus of many cutting-edge studies due to their potential to advance such critically important areas of technology as energy storage and transformation, sensing, photovoltaics, nano-medicine, antibacterial and self-regenerating materials. However, deterministic design of novel hierarchical metamaterials remains problematic due to the lack of efficient, highly reliable methods for controlling the internal structure and design of materials. Here we propose an advanced comprehensive model to simulate the formation of complex hierarchical metamaterials with controllable structure. The control is achieved via selective deposition of noble metal nanoparticles (Au, Au, Pd, Pt). Moreover, we theoretically examine and experimentally verify the novel method. This approach allows for the sophisticated spatiotemporal control of growth con-ditions and, as a result, achieving the targeted internal structure of metamaterials. This opens a way to the deterministic design and formation of complex multi-material met-amaterials on the basis of metal oxides and noble metal nanoparticles. Moreover, we pre-sent a fundamental insight related to the longstanding question about the bottom-up and top-down growth types that vary for various materials and systems, and is quite difficult for the direct experimental verification.
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Dates and versions

hal-04144265 , version 1 (28-06-2023)

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Oleg Baranov, Thierry Belmonte, Igor Levchenko, Kateryna Bazaka, Martin Košiček, et al.. Hierarchical nanomaterials by selective deposition of noble metal nanoparticles: Insight into control and growth processes. Advanced Theory and Simulations, 2023, 6 (9), pp.2300288. ⟨10.1002/adts.202300288⟩. ⟨hal-04144265⟩
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