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Transmission Electron Microscopy Study of Copper Containing Spinel‐type In 2 S 3 Nanocrystals Prepared by Rapid Pyrolysis of a Single Molecular Precursor
Author(s) -
QuirogaGonzález Enrique,
Bensch Wolfgang,
Duppel Viola,
Kienle Lorenz
Publication year - 2010
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.201000124
Subject(s) - spinel , high resolution transmission electron microscopy , copper , crystallite , transmission electron microscopy , materials science , raman spectroscopy , nanocrystal , analytical chemistry (journal) , pyrolysis , hydrothermal circulation , nanometre , crystallography , chemical engineering , nanotechnology , chemistry , metallurgy , optics , organic chemistry , composite material , physics , engineering
Copper containing spinel‐type In 2 S 3 nanocrystals were prepared by rapid pyrolysis (RP) from a single source inorganic‐organic hybrid molecular precursor with an initial Cu:In:S ratio of 1:9:16.5. The precursor was synthesized in a one‐step hydrothermal reaction with high yield. After a treatment of the precursor for 10 s at 1000 °C a powdered material was obtained. The X‐ray powder pattern exhibits broad reflections indicative for the spinel‐type and crystallites in the nanometer range, however, the positions of the reflections match well with different compounds of the In‐S and Cu‐In‐S systems. High resolution transmission electron microscopy (HRTEM) studies in connection with EDX analyses evidence the presence of cubic spinel‐type copper containing In 2 S 3 . Two such In 2 S 3 phases coexist with one being copper poor and the other having a larger copper content. The coexistence of these two compounds is reflected by the Raman and UV/Vis spectra.