Nucleation and Ordering of an Electrodeposited Two-Dimensional Crystal: Real-Time X-Ray Scattering and Electronic Measurements

Finnefrock, Adam C.; Ringland, K. L.; Brock, J. D.; Buller, Lisa J.; Abruña, Héctor D.

doi:10.1103/physrevlett.81.3459

Cited by 16 publications

(20 citation statements)

References 25 publications

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“…The two-dimensional version corresponding to the model for which we present numerical results, has been applied to thermally activated switching in uniaxial ferroelectric [17][18][19][20][21][22][23][24][25] and ferromagnetic [27][28][29][30][31][32] thin films. The equivalent latticegas model should give a reasonable representation of the kinetics of submonolayer adsorption in chemical [33][34][35][36][37][38][39][40][41][42] and physical 43 systems in which lateral adsorbate diffusion can be ignored. Electrochemical underpotential deposition, 34 in which second-layer formation is heavily suppressed, might be approximated by this model, 39 although more detailed agreement with experimental studies of dynamical phenomena 34 requires the inclusion of lateral diffusion.…”

Section: A Model Hamiltonianmentioning

confidence: 99%

“…6 crystallization kinetics in lipids, 7 sugars, 8 polymers, 9 and eutectic mixtures; 10,11 solidstate phase transformations; [12][13][14][15][16] domain switching in ferroelectrics [17][18][19][20][21][22][23][24][25] and ferromagnets; 26-32 adsorption and surface growth kinetics in electrochemical [33][34][35][36][37][38][39][40][41][42] or gas/vacuum environments;…”

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confidence: 99%

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Test of the Kolmogorov-Johnson-Mehl-Avrami picture of metastable decay in a model with microscopic dynamics

1999

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The Kolmogorov-Johnson-Mehl-Avrami (KJMA) theory for the time evolution of the order parameter in systems undergoing first-order phase transformations has been extended by Sekimoto to the level of two-point correlation functions. Here, this extended KJMA theory is applied to a kinetic Ising lattice-gas model, in which the elementary kinetic processes act on microscopic length and time scales. The theoretical framework is used to analyze data from extensive Monte Carlo simulations. The theory is inherently a mesoscopic continuum picture, and in principle it requires a large separation between the microscopic scales and the mesoscopic scales characteristic of the evolving two-phase structure. Nevertheless, we find excellent quantitative agreement with the simulations in a large parameter regime, extending remarkably far towards strong fields (large supersaturations) and correspondingly small nucleation barriers. The original KJMA theory permits direct measurement of the order parameter in the metastable phase, and using the extension to correlation functions one can also perform separate measurements of the nucleation rate and the average velocity of the convoluted interface between the metastable and stable phase regions. The values obtained for all three quantities are verified by other theoretical and computational methods. As these quantities are often difficult to measure directly during a process of phase transformation, data analysis using the extended KJMA theory may provide a useful experimental alternative. PACS numbers(s): 64.60. Qb,

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Section: A Model Hamiltonianmentioning

confidence: 99%

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confidence: 99%

Test of the Kolmogorov-Johnson-Mehl-Avrami picture of metastable decay in a model with microscopic dynamics

1999

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“…The combination of time-resolved dynamical MC simulations with time-resolved structure-sensitive experiments is desirable. New perspectives along these strategies developed also with the advent of time-resolved SEIRAS [199], surface X-ray scattering (SXS), [200] and in situ scanning probe techniques [201]. Some examples will be described in the application sections.…”

Section: Coupling Of Nucleation and Growthmentioning

confidence: 99%

“…Very recently, several structure-sensitive in situ techniques have been applied to monitor the kinetics of UPD or dissolution. Finnefrock and coworkers [200] performed first SXS-measurements for Cu UPD on Pt (111), and Ataka and coworkers [199] demonstrated the usefulness of step-scan SEIRAS in exploring kinetic mechanisms of metal deposition processes.…”

Section: Phase Transitions In Upd -Adlayersmentioning

confidence: 99%

Phase Transitions in Two‐dimensional Adlayers at Electrode Surfaces: Thermodynamics, Kinetics, and Structural Aspects

Wandlowski¹

2002

Encyclopedia of Electrochemistry

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The sections in this article are Introduction Thermodynamic Aspects Phase Transitions and Order Parameter Adsorption Isotherms and Lateral Interactions Kinetics of 2 D Phase Formation and Dissolution Diffusion, Adsorption, Autocatalysis Nucleation and Growth Mechanisms Nucleation Growth Coupling of Nucleation and Growth Dissolution of 2 D Condensed Monolayers Examples Phase Transitions in Anionic Adlayers Introduction Phase Formation in Halide Adlayers Phase Transitions in Adlayers of Oxoanions Phase Transitions in UPD —Adlayers Introduction Underpotential Deposition of Copper Ions on Au ( hkl ) Underpotential Deposition of Copper Ions on Pt ( hkl ) Underpotential Deposition of Lead on Ag ( hkl ) Phase Transitions in Organic Monolayers General Aspects Thermodynamic Aspects Kinetic Aspects Case Study I—Coumarin at the Mercury–Aqueous Electrolyte Interface Case Study III —2,2 ′ ‐Bipyridine (2,2 ′ ‐ BP ) on Au ( hkl ) Conclusion and Outlook Acknowledgment

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“…However, lots of electrode reactions take place in the quasi-two-dimensional (quasi-2D) environment, such as fabrication of nanowire in a nano-channel template by electrodeposition [4], or electrochemical crystallization taking place in polymer electrolyte [5]. Thus, a large number of models and experiments are focused on the investigation on the electrodeposition in quasi-2D electrochemical cell [6][7][8][9][10][11][12][13][14]. At the mid-1980s, quasi-2D electrodeposition of zinc offered the opportunity to investigate very different morphologies from largely ramified branch to well-ordered anisotropic dendrite [15].…”

Section: Introductionmentioning

confidence: 99%

Quasi-two-dimensional electrodeposition growth of Pb0.5Sn0.5 alloy

Sun

Zou²,

Tan

et al. 2006

Cryst. Res. Technol.

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Electrodeposition of Pb 0.5 Sn 0.5 alloy is carried out in a quasi-2D electrochemical cell. As the growth proceeds the morphologies of the deposits transit from cake-like to branched and finally to the compact morphology. We show that these morphological transitions arise from the changes in the transport mechanisms of the ions in the electrolyte cell. In addition, it is found that the current density on the growth interface can vary spontaneously due to the irregular shape of the deposit and the generation of hydrogen gas. It causes the formation of the complex microstructure with non-uniform composition.

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Nucleation and Ordering of an Electrodeposited Two-Dimensional Crystal: Real-Time X-Ray Scattering and Electronic Measurements

Cited by 16 publications

References 25 publications

Test of the Kolmogorov-Johnson-Mehl-Avrami picture of metastable decay in a model with microscopic dynamics

Test of the Kolmogorov-Johnson-Mehl-Avrami picture of metastable decay in a model with microscopic dynamics

Phase Transitions in Two‐dimensional Adlayers at Electrode Surfaces: Thermodynamics, Kinetics, and Structural Aspects

Quasi-two-dimensional electrodeposition growth of Pb0.5Sn0.5 alloy

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