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Volumn 305, Issue 5692, 2004, Pages 1944-1948

Visualization of dislocation dynamics in colloidal crystals

Author keywords

[No Author keywords available]

Indexed keywords

COLLOIDS; CRYSTAL DEFECTS; CRYSTAL STRUCTURE; ELECTROMAGNETIC WAVE DIFFRACTION; OPTICAL MICROSCOPY; SCANNING; TOPOLOGY; VECTORS;

EID: 4644359607     PISSN: 00368075     EISSN: None     Source Type: Journal    
DOI: 10.1126/science.1102186     Document Type: Article
Times cited : (210)

References (25)
  • 10
    • 4644256495 scopus 로고    scopus 로고
    • note
    • The silica particles (Micromod, Sicastar, 1.5 μm) are suspended in an index-matching mixture of water and dimethyl sulfoxide at an initial volume fraction of 0.03%. We add a small amount of a fluorescein-NaOH mixture to the solvent, allowing us to image the particles with fluorescence under the confocal microscope; the particles appear as dark spheres in a light background.
  • 11
    • 4644269379 scopus 로고    scopus 로고
    • note
    • We use standard photolithographic processes to prepare a template with a square array of 3000 by 3000 holes in a polymethyl methacrylate layer 500 nm thick over an area of about 5 mm by 5 mm.
  • 12
    • 4644233455 scopus 로고    scopus 로고
    • note
    • For example, we estimate that increasing the film thickness from 20 μm to 30 μm produces a 0.4% decrease in the preferred lattice spacing.
  • 18
    • 4644235142 scopus 로고    scopus 로고
    • note
    • c = 22 μm.
  • 20
    • 4644364411 scopus 로고    scopus 로고
    • note
    • o. For example, a 0.005 increase in the misfit strain can account for the discrepancy. Such an increase can result from the change in pressure head when the film thickness changes from 20 μm to 30 μm.
  • 21
    • 4644310171 scopus 로고    scopus 로고
    • note
    • 2.
  • 23
    • 4644334790 scopus 로고    scopus 로고
    • note
    • -3 Pa·s (24), we obtain a value of 0.3 Pa for the elastic modulus.
  • 25
    • 4644318141 scopus 로고    scopus 로고
    • note
    • We thank R. Christianson and D. Blair for their help with the image analysis, and E. Chen and Y. Lu for their help in manufacturing the templates. Supported by a Lynen Fellowship from the Alexander von Humboldt Foundation (P.S.), by NSF grant DMR-0243715, and by Harvard MRSEC grant DMR-0213805.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.