Nanoscale evolution of interface morphology during electrodeposition

Schneider, Nicholas M.; Park, Jeung Hun; Grogan, Joseph M.; Steingart, Dan; Bau, Haim H.; Ross, Frances M.

doi:10.1038/s41467-017-02364-9

Cited by 52 publications

(54 citation statements)

References 39 publications

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“…9 , Supplementary Note 8 ). This RMS roughness profile contrasts with the reported power law dependence of RMS roughness versus time when kinetic roughening by random arrival of material on the surface dominates the surface profile 27 , 39 . We attribute this observation to the time scale separation in the supracrystal growth and surface fluctuation (Supplementary Note 9 ).…”

Section: Resultscontrasting

confidence: 87%

“…Beyond the quasi-equilibrium system we focus on here, where the surface profile is controlled by the balance between surface energy and thermal fluctuations, the imaging of surface profiles can allow mapping of other parameters on other fluctuating systems at the nanoscale. For example, one can measure the bending and stretching modulus in a fluctuating vesicle where inter-lipid interactions add rigidity to the vesicle during vesicle transformation 29 , or measure the deposition laws as the RMS roughness changes with time due to active materials deposition 27 , 53 . More studies can emerge to use our method to study fluctuations as liquid-phase TEM becomes more compatible with biological samples and out-of-equilibrium field application.…”

Section: Discussionmentioning

confidence: 99%

“…This real-space imaging and fluctuation analysis of a growing NP supracrystal provides guidance on encoding the shape and surface morphology of nanostructured materials from the building units and growth kinetics. Our workflow can be potentially extended to other phenomena governed by nanoscale interfacial fluctuations, from substrate guided crystal growth 17 , dendrite formation 27 , fusion of lipid vehicles 28 , to cellular compartmentalization 29 .…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Imaging how thermal capillary waves and anisotropic interfacial stiffness shape nanoparticle supracrystals

Yao

et al. 2020

Nat Commun

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Development of the surface morphology and shape of crystalline nanostructures governs the functionality of various materials, ranging from phonon transport to biocompatibility. However, the kinetic pathways, following which such development occurs, have been largely unexplored due to the lack of real-space imaging at single particle resolution. Here, we use colloidal nanoparticles assembling into supracrystals as a model system, and pinpoint the key role of surface fluctuation in shaping supracrystals. Utilizing liquid-phase transmission electron microscopy, we map the spatiotemporal surface profiles of supracrystals, which follow a capillary wave theory. Based on this theory, we measure otherwise elusive interfacial properties such as interfacial stiffness and mobility, the former of which demonstrates a remarkable dependence on the exposed facet of the supracrystal. The facet of lower surface energy is favored, consistent with the Wulff construction rule. Our imaging–analysis framework can be applicable to other phenomena, such as electrodeposition, nucleation, and membrane deformation.

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Section: Resultscontrasting

confidence: 87%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Imaging how thermal capillary waves and anisotropic interfacial stiffness shape nanoparticle supracrystals

Yao

et al. 2020

Nat Commun

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“…Determining surface roughness is crucial for understanding many phenomena associated with crystal surfaces [1][2][3][4][5][6][7][8][9][10][11][12][13] . However, developing methods to measure surface roughness has proven to be not as straightforward as had been expected 14,15 .…”

Section: Faceted-rough Surface With Disassembling Of Macrosteps In Numentioning

confidence: 99%

Faceted-rough surface with disassembling of macrosteps in nucleation-limited crystal growth

Akutsu

2021

Sci Rep

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To clarify whether a surface can be rough with faceted macrosteps that maintain their shape on the surface, crystal surface roughness is studied by a Monte Carlo method for a nucleation-limited crystal-growth process. As a surface model, the restricted solid-on-solid (RSOS) model with point-contact-type step–step attraction (p-RSOS model) is adopted. At equilibrium and at sufficiently low temperatures, the vicinal surface of the p-RSOS model consists of faceted macrosteps with (111) side surfaces and smooth terraces with (001) surfaces (the step-faceting zone). We found that a surface with faceted macrosteps has an approximately self-affine-rough structure on a ‘faceted-rough surface’; the surface width is strongly divergent at the step-disassembling point, which is a characteristic driving force for crystal growth. A ‘faceted-rough surface’ is realized in the region between the step-disassembling point and a crossover point where the single nucleation growth changes to poly-nucleation growth.

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“…Interfaces are ubiquitous in almost all engineered materials 2 and devices 3,4 and have been known to affect the properties of interfaced materials and films. 5 While the study of solid-solid interfaces represents an important and diverse area of research in materials science and engineering, 6 the understanding and control 7 of interfacial morphology are critical in a number of applications including nanotechnology and energy. 8,9 Recent advancements in electronics and photonics have led to an evolution in bandgap-engineered structures as well as the choice of material candidates.…”

mentioning

confidence: 99%