Surface tensions of molten salt mixtures

Goodisman, Jerry

doi:10.1016/0021-9797(80)90128-9

Cited by 5 publications

(4 citation statements)

References 15 publications

(21 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For example, the epitaxy of transition-metal dichalcogenides from the LiCl solutions yielded thick flakes (Figure S16). Excluding LiCl, a trend can be seen for other solvents, which is that the monolayer growth is more preferred for solvents with higher surface tensions (Figure b). , This can be understood by the dewetting condition for liquid droplets on MX 2, , Where γ l‑g is the surface tension of the solution, γ 2D‑g is the surface tension of the 2D-material, γ 2D‑l is the surface tension between the 2D material and the solution, and θ is the contact angle of the droplet on the 2D material flake …”

Section: Resultsmentioning

confidence: 94%

“…Excluding LiCl, a trend can be seen for other solvents, which is that the monolayer growth is more preferred for solvents with higher surface tensions (Figure 4b). 30,37 This can be understood by the dewetting condition for liquid droplets on MX 2, 16,31…”

Section: ■ Results and Discussionmentioning

confidence: 99%

“…Correlation between the monolayer yield and the surface tension of the molten solvents used in LPEE. (a) The plot of surface tensions of molten alkali metal halides (data for T = 850 °C) and plot of the monolayer yield for different pairs of MX 2 -alkali metal halide. (b) Illustration of the dewetting case (left) and the wetting case (right) which depends on the surface tensions.…”

Section: Resultsmentioning

confidence: 99%

See 2 more Smart Citations

Liquid Phase Edge Epitaxy of Transition-Metal Dichalcogenide Monolayers

Hussain,

Zhou,

et al. 2023

J. Am. Chem. Soc.

View full text Add to dashboard Cite

Precise monolayer epitaxy is important for two-dimensional (2D) semiconductors toward future electronics. Here, we report a new self-limited epitaxy approach, liquid phase edge epitaxy (LPEE), for precise-monolayer epitaxy of transition-metal dichalcogenides. In this method, the liquid solution contacts 2D grains only at the edges, which confines the epitaxy only at the grain edges and then precise monolayer epitaxy can be achieved. High-temperature in situ imaging of the epitaxy progress directly supports this edge-contact epitaxy mechanism. Typical transition-metal dichalcogenide monolayers (MX2, M = Mo, W, and Re; X = S or Se) have been obtained by LPEE with a proper choice of molten alkali halide solvents (AL, A = Li, Na, K, and Cs; L = Cl, Br, or I). Furthermore, alloying and magnetic-element doping have also been realized by taking advantage of the liquid phase epitaxy approach. This LPEE method provides a precise and highly versatile approach for 2D monolayer epitaxy and can revolutionize the growth of 2D materials toward electronic applications.

show abstract

Section: Resultsmentioning

confidence: 94%

Section: ■ Results and Discussionmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Liquid Phase Edge Epitaxy of Transition-Metal Dichalcogenide Monolayers

Hussain,

Zhou,

et al. 2023

J. Am. Chem. Soc.

View full text Add to dashboard Cite

show abstract

“…The negative deviation of the surface tension of a molten salt mixture is attributed to the fact that the composition near the surface is enriched in the component of a lower surface tension. 23 Thus, the composition of the mixture near the surface is different from the bulk composition. Therefore, a size-dependent ͑or density-dependent͒ mixing rule is proposed for the size parameter as follows…”

Section: ͓7͔mentioning

confidence: 99%

A Corresponding States Method for the Prediction of Surface Tension of Molten Carbonate Mixtures

Hsieh

Selman

2010

J. Electrochem. Soc.

View full text Add to dashboard Cite

A methodology using the theory of corresponding states has been developed to predict the surface tension of molten alkali carbonate mixtures and alkali–alkaline-earth carbonate mixtures as a function of composition and temperature. To correlate the dimensionless surface tension, the parameters for pure components are determined. The potential parameters of pure salt are defined at the melting point with respect to a standard salt. A size-dependent mixing rule is proposed to predict properties of a mixture based on the heats of mixing of molten salts. Selected experimental data of binary mixtures at 40–60 mol % Li are used to fit key parameters. The correlations developed by this method provide very good accuracy for both binary and ternary alkali carbonate mixtures (within 1.5% deviation for ternary alkali carbonates). In alkali–alkaline-earth carbonate mixtures, a similar accuracy is only achieved in the low alkaline-earth fraction range.

show abstract