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  • BET surface area  (2)
  • ORMOSIL  (1)
  • *Extinction, Biological
  • Springer  (3)
  • 1
    Electronic Resource
    Electronic Resource
    Optical and microstructural properties of a simple ORMOSIL (1994)
    Springer
    Journal of sol gel science and technology 2 (1994), S. 181-183 
    Details
    ISSN: 1573-4846
    Keywords: ORMOSIL ; microstructure ; rhodamine 6G ; fluorescence
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract The optical and microstructural properties of a methyl-modified silicate have been investigated in the absence and presence of a guest fluorescent dopant. The ORMOSIL host exhibits low intrinsic optical loss, down to 0.6 dB cm−1 at 0.633 µm. The dopant was found to be uniformly dispersed throughout the matrix. Evaluation of the host microstructure indicates that it is amorphous and that there is no evidence for macroscopic phase-separation, but that at ultra-high resolution there exists some local elongated structure which may be due to residual microporosity.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00486237
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Structural Investigation of Ormosils with Potential as Host Photonic Materials (1997)
    Springer
    Journal of sol gel science and technology 8 (1997), S. 139-145 
    Details
    ISSN: 1573-4846
    Keywords: ormosils ; photonic materials ; IR spectroscopy ; solid state NMRspectroscopy ; BET surface area
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Class II ormosils in the systems: methyl, propyl, vinyl and phenyl silicates have been structurally investigated for their suitability as photonic materials and this paper is a precis of many data. From visible and near-infrared spectroscopy these ormosils have: (i) intrinsic optical windows in the visible and at 1.06, 1.3 and 1.55 μ m and (ii) low residual water, despite being synthesised at only 60° C. The residual water can be expelled under vacuum. Solid state29 Si nuclear magnetic resonance spectroscopy shows that matrix condensation increases as the organic content of the matrix is increased; this is accompanied by a decrease in BET surface area.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1026492231281
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    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Structural investigation of ormosils with potential as host photonic materials (1997)
    Springer
    Journal of sol gel science and technology 8 (1997), S. 139-145 
    Details
    ISSN: 1573-4846
    Keywords: ormosils ; photonic materials ; IR spectroscopy ; solid state NMR spectroscopy ; BET surface area
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Class II ormosils in the systems: methyl, propyl, vinyl and phenyl silicates have been structurally investigated for their suitability as photonic materials and this paper is a precis of many data. From visible and near-infrared spectroscopy these ormosils have: (i) intrinsic optical windows in the visible and at 1.06, 1.3 and 1.55 μm and (ii) low residual water, despite being synthesised at only 60°C. The residual water can be expelled under vacuum. Solid state29Si nuclear magnetic resonance spectroscopy shows that matrix condensation increases as the organic content of the matrix is increased; this is accompanied by a decrease in BET surface area.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02436831
    Location Call Number Expected Availability
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    Paper (German National Licenses)
    Fulltext
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