EXAFS Analysis of Size-Constrained Semiconducting Materials
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چکیده
منابع مشابه
Exafs Analysis of Size-constrained Semiconducting Materials
Semiconducting materials such as CdSe, CdS, PbS and GaP are included in crystalline zeolite Y and mordenite and structurally flexible ethylenemethacrylic acid copolymer solid matrices. EXAFS anal sis reveals formation of while the polymer matrices allow agglomeration of larger semiconducting particles. Zeolite anchored structures are distinctively different to small particles with bulk crystal ...
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Investigation of Local Structure of Novel Materials using EXAFS Technique
متن کاملOverview of the standard EXAFS data analysis procedure Introduction Interpretation of EXAFS data is normally based on the EXAFS equation
with appropriate accomodation for forward scattering (\focussing e ect") for higher shells, and inclusion of higher cumulants as necessary. The aim of data analysis is to determine the distances, coordination numbers, disorder parameters and types of atoms in the various coordination shells for the \unknown" sample. The extent to which this is possible depends on the nature of the system, the q...
متن کاملEXAFS determination of the size of Co clusters on silica.
The metallic Co catalyst for the Fischer-Tropsch reaction is prepared by reduction of Co salts impregnating microporous silica. The average size of the metallic Co clusters is determined from the average number of neighbours deduced from Co K-edge EXAFS of catalyst samples. A model EXAFS signal constructed from the scattering paths of Co metal fcc lattice with lengths up to 5 A is calibrated on...
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ژورنال
عنوان ژورنال: Molecular Crystals and Liquid Crystals Incorporating Nonlinear Optics
سال: 1990
ISSN: 1044-1859
DOI: 10.1080/00268949008036014