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Volumn 25, Issue 19, 2009, Pages 11777-11785

Limitations on the optical tunability of small diameter gold nanoshells

Author keywords

[No Author keywords available]

Indexed keywords

AVERAGE DIAMETER; CORE-SHELL; DISPERSION STABILITY; DOUBLE LAYERS; GEOMETRIC FACTORS; GOLD NANOSHELLS; MAGNETIC IRON OXIDES; MODEL CALCULATIONS; NANOSHELLS; OPTICAL ABSORBANCE; OPTICAL TUNABILITY; PLASMON ABSORPTION; PLASMON PEAKS; PLASMON RESONANCES; SILICA CORES; SILICA NANOPARTICLES; SILICA SPHERE; SIZE-DEPENDENCE; SMALL-DIAMETER;

EID: 70349897860     PISSN: 07437463     EISSN: None     Source Type: Journal    
DOI: 10.1021/la901249j     Document Type: Article
Times cited : (73)

References (67)
  • 17
  • 43
    • 70349935368 scopus 로고    scopus 로고
    • Warning! Iron pentacarbonyl is a highly flammable, very toxic chemical that should be handled with caution
    • Warning! Iron pentacarbonyl is a highly flammable, very toxic chemical that should be handled with caution.
  • 46
    • 70349910485 scopus 로고    scopus 로고
    • 2 relative to the 30 nm silica spheres. This did not appear to give the larger spheres any advantage over the smaller-sized silica for attachment of Au nanoparticles
    • 2 relative to the 30 nm silica spheres. This did not appear to give the larger spheres any advantage over the smaller-sized silica for attachment of Au nanoparticles.
  • 49
    • 70349912613 scopus 로고    scopus 로고
    • 2/mL provided about the same Au surface coverage. Concentrations of silica surface area lower than this range did not improve the Au surface coverage
    • 2/mL provided about the same Au surface coverage. Concentrations of silica surface area lower than this range did not improve the Au surface coverage.
  • 50
    • 70349926058 scopus 로고    scopus 로고
    • Note
    • a, though this did not offer any improvement in the broadness or position of the plasmon absorbance peak.
  • 54
    • 70349914756 scopus 로고    scopus 로고
    • Plasmon peak wavelength calculations are described in the Supporting Information, along with specific comparisons to the experimental absorbance spectra
    • Plasmon peak wavelength calculations are described in the Supporting Information, along with specific comparisons to the experimental absorbance spectra.
  • 57
    • 0003998388 scopus 로고    scopus 로고
    • Internet Version; CRC Press/Taylor and Francis: Boca Raton, FL
    • CRC Handbook of Chemistry and Physics, 89th ed. (Internet Version); CRC Press/Taylor and Francis: Boca Raton, FL, 2009.
    • (2009) CRC Handbook of Chemistry and Physics, 89th Ed.
  • 60
    • 70349912625 scopus 로고    scopus 로고
    • Note
    • 66 Applying this result to each of the four silica core sizes, we found that the seed particles attain optimum packing on each core surface after growing to a diameter of 5.0 nm. Thus, the Au nanoparticles will definitely have to fuse when the shell thickness exceeds 5.0 nm, and eqs 7 and 8 will no longer be valid beyond this point (the sheath layer will essentially be all Au anyway). The TEM images in Figure 2iii suggest that the Au seeds probably do not grow uniformly, so we focused our analysis of the sheath layer on the 2-3 nm Au-decorated silica spheres at the onset of Au shell growth.
  • 61
    • 70349910498 scopus 로고    scopus 로고
    • 64, 67 The stability coefficients were evaluated using trapezoidal numerical integration, and the results are plotted in Figure 7. For the undecorated silica spheres, W increases with particle size, and the results are well within the range of calculated values reported by Spielman and co-workers.67
    • 64, 67 The stability coefficients were evaluated using trapezoidal numerical integration, and the results are plotted in Figure 7. For the undecorated silica spheres, W increases with particle size, and the results are well within the range of calculated values reported by Spielman and co-workers.67


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.