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Volumn 23, Issue 11, 2007, Pages 5852-5856

Two-dimensional crystal growth from undersaturated solutions

Author keywords

[No Author keywords available]

Indexed keywords

AQUEOUS CONCENTRATIONS; DISSOLVED COMPOUNDS; IONIC COMPOUNDS; SOLID PHASE; UNDERSATURATED SOLUTIONS;

EID: 34249866540     PISSN: 07437463     EISSN: None     Source Type: Journal    
DOI: 10.1021/la063548d     Document Type: Article
Times cited : (18)

References (41)
  • 20
    • 34249877226 scopus 로고    scopus 로고
    • Only clear and colorless natural crystals were chosen for experiments. Crystals were cleaved using a sharp blade and a hammer and then glued to the sample puck and imaged in water within 1 h of cleaving, The water used in these experiments was distilled and deionized with a minimum resistivity of 17.8 MΩ cm. All ionic salts were used as received from Sigma- Aldrich and had a minimum purity of 99%, Only surfaces showing broad terraces (>500 nm) and faceted, monomolecular steps were used for growth experiments. All AFM images were captured in static solutions at room temperature by a Digital Instruments AFM (Nanoscope III or Dimension 3000) using cantilever spring constants of ∼0.6 N/m, imaging forces of ∼1-10 nN, and scan rates of 5-20 Hz at a scan angle of 90°. All images shown are unfiltered except for slope removal along each scan line
    • Only clear and colorless natural crystals were chosen for experiments. Crystals were cleaved using a sharp blade and a hammer and then glued to the sample puck and imaged in water within 1 h of cleaving. (The water used in these experiments was distilled and deionized with a minimum resistivity of 17.8 MΩ cm. All ionic salts were used as received from Sigma- Aldrich and had a minimum purity of 99%.) Only surfaces showing broad terraces (>500 nm) and faceted, monomolecular steps were used for growth experiments. All AFM images were captured in static solutions at room temperature by a Digital Instruments AFM (Nanoscope III or Dimension 3000) using cantilever spring constants of ∼0.6 N/m, imaging forces of ∼1-10 nN, and scan rates of 5-20 Hz at a scan angle of 90°. All images shown are unfiltered except for slope removal along each scan line.
  • 22
    • 34249872817 scopus 로고    scopus 로고
    • 4, showed no film growth in undersaturated solutions. We minimized tip scanning effects on the growing film by using low imaging forces, and we also confirmed the similarity in images between scanned and previously unscanned areas.
    • 4, showed no film growth in undersaturated solutions. We minimized tip scanning effects on the growing film by using low imaging forces, and we also confirmed the similarity in images between scanned and previously unscanned areas.
  • 23
    • 34249879654 scopus 로고    scopus 로고
    • 4. Step speeds varied somewhat between samples and depended strongly on step orientation.
    • 4. Step speeds varied somewhat between samples and depended strongly on step orientation.
  • 26
    • 0003435080 scopus 로고
    • 20th ed, John Wiley & Sons: New York
    • Klein, C.; Hurlbut, C. S. Manual of Mineralogy, 20th ed.; John Wiley & Sons: New York, 1977; pp 349-350.
    • (1977) Manual of Mineralogy , pp. 349-350
    • Klein, C.1    Hurlbut, C.S.2
  • 27
    • 33744525735 scopus 로고    scopus 로고
    • 16th ed, Speight, J. G, Ed, McGraw Hill: New York
    • Lange's Handbook of Chemistry, 16th ed.; Speight, J. G., Ed.; McGraw Hill: New York, 2005.
    • (2005) Lange's Handbook of Chemistry
  • 28
    • 34249870180 scopus 로고    scopus 로고
    • A 2D film forms spontaneously when (γfilm, γstrain) < γsubstrate, where γfilm and γsubstrate are the aqueous interfacial tensions of the film and substrate materials, respectively, and γstrain is the lattice strain energy per unit area. Assuming that the strain is limited to the film lattice (which distorts to match the substrate lattice, the strain energy in vacuum γvac is BΔV/A, Bh(ΔA/A, where B is the bulk modulus of the film material, ΔV is the change in the unit cell, h is the height of the film, and ΔA/A is the fractional area change of the film lattice. This energy cost originates from Coulomb interactions between ions, which in an aqueous environment are reduced by the dielectric constant ε of water, giving γstrain, Bh/ε)(ΔA/A, Using published values sources b
    • substrate, consistent with the observation of wetting growth. (Sources: Klein, C.; Hurlbut, C. S. Manual of Mineralogy, 20th ed.; John Wiley & Sons: New York, 1977; pp 349-350.
  • 29
    • 0003570873 scopus 로고
    • 6th ed, Brandes, E, Ed, Butterworths: London
    • Smithells Metals Reference Book, 6th ed.; Brandes, E., Ed.; Butterworths: London, 1983.
    • (1983) Smithells Metals Reference Book


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.