X-Ray Diffraction, Topographical Studies, and Thermal Behavior of Layer-Type CdIn2S4-xSex (1.75 ≤ x ≤ 2.75) and Its Lithium Intercalation Compounds

Autor: D. Palit, Monoj Pramanik, Suneel Kumar Srivastava, H. Haeuseler, M. Ochel
Rok vydání: 2004
Předmět:
Zdroj: ChemInform. 35
ISSN: 1522-2667
0931-7597
Popis: The present paper deals with the preparation of ZnIn2S4−IIIa layer-type CdIn2S4-xSex (1.75≤ x ≤ 2.75) quaternary chalcogenides and their characterization. X-ray diffraction studies of CdIn2S4-xSex (1.75 ≤ x ≤ 2.75) confirmed that all of these compounds possess the ZnIn2S4−IIIa type of structure. The variation of the composition x shows that both lattice parameters a- and c increase with a growing amount of selenium in the crystals. The calculation of microstructural parameters by an X-ray line profile analysis has shown that the intercalation of lithium in the host CdIn2S2Se2 is accompanied by a decrease in crystallite size while the dislocation density and the rms strain are increasing. The process of intercalation results in no expansion along the c-axis, probably due to no increase in the c-parameter at all in a given intercalation process; which does not have purely geometric origin but also comes from electronic effects. A radial distribution function (RDF) analysis of these quaternary chalcogenides ...
Databáze: OpenAIRE
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