The presence of defects in a structure (vacancies causing a diffusion, etc.) can affect quality of a material used in nanotechnology. To study this problem the examination of a nanocrystal film of organic matter by a method of Raman effect has been used. This method picked, as spectrums of the lattice oscillations are rather sensitive to structural change of a crystal. In the capacity of a subject of inquiry the molecular crystal paradibromobenzene which are a good model for the picked object. It is shown the sondage usage by the focused laser beam of films of organic crystals and Raman effect method of light allocation of vacancies in a film, it is found that at diminution of thickness of a film the number of vacancies will increase up to particular quantity, and their allocation on a film surface in investigated samples is not uniform. The changes of physical properties because of a dimensional change of crystal grains for the structures built from organic molecules, apparently, is observed at their greater size, than for the structures built from atoms.


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    Titel :

    Use of laser for study of allocation of vacancies in nanocrystallic films of organic matters


    Beteiligte:


    Erscheinungsdatum :

    2005-01-01


    Format / Umfang :

    665877 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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