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1,2-Dithiooxalato-Bridged Heterobimetallic Complexes as Single-Source Precursors for Ternary Metal Sulfide Semiconductors

Nowotny, Mathias and Foro, Sabine and Heinschke, Silvio and Hoffmann, Rudolf C. and Schneider, Jörg J. (2015):
1,2-Dithiooxalato-Bridged Heterobimetallic Complexes as Single-Source Precursors for Ternary Metal Sulfide Semiconductors.
2015, In: European Journal of Inorganic Chemistry, (3), WILEY-V C H VERLAG GMBH, pp. 512-519, ISSN 14341948, [Online-Edition: http://dx.doi.org/10.1002/ejic.201402990],
[Article]

Abstract

The new 1,2-dithiooxalalo-bridged bimetallic Cu-Ga, Cu-In, and Cu-Sn complexes [[(Ph3P)(2)Cu(mu-S2C2O2)}(3)Ga] (1), [{(Ph3P)(2)Cu(mu-S2C2O2)}(3)In] (2), [(Ph3P)(2)Cu(mu-S2C2O2)In-(S2CNEt2)(2)] (3), and [{(Ph3P)(2)Cu(mu-S2C2O2)}(2)Sn(S2C2O2)] (4) were prepared and spectroscopically fully characterized. The crystal structures of 2-4 are presented. Complexes 3 and 4 are potential molecular single-source precursors (SSP) for the ternary semiconductors CuInS2 and Cu2SnS3, respectively, which can be manipulated under ambient conditions. Indeed, a study or the thermal degradation of 3 and 4 revealed that 3 affords pure nanoscaled CuInS2 (mean diameter ca. 2 rim) when the decomposition is carried out in an oleyla.mine solution by using a hot-injection or arrested-precipitation technique at temperatures well below 250 degrees C. In contrast, 4 decomposes under the same reaction conditions in an ambiguous mariner and forms mixed binary chalcogenide phases. This can be explained by a subtle influence of the relative stability of possible Sn-II and Sn-IV intermediates in the case of SSP [{(Ph3P)(2)Cu(mu-S2C2O2)}(2)Sn(S2C2O2)] (4).

Item Type: Article
Erschienen: 2015
Creators: Nowotny, Mathias and Foro, Sabine and Heinschke, Silvio and Hoffmann, Rudolf C. and Schneider, Jörg J.
Title: 1,2-Dithiooxalato-Bridged Heterobimetallic Complexes as Single-Source Precursors for Ternary Metal Sulfide Semiconductors
Language: English
Abstract:

The new 1,2-dithiooxalalo-bridged bimetallic Cu-Ga, Cu-In, and Cu-Sn complexes [[(Ph3P)(2)Cu(mu-S2C2O2)}(3)Ga] (1), [{(Ph3P)(2)Cu(mu-S2C2O2)}(3)In] (2), [(Ph3P)(2)Cu(mu-S2C2O2)In-(S2CNEt2)(2)] (3), and [{(Ph3P)(2)Cu(mu-S2C2O2)}(2)Sn(S2C2O2)] (4) were prepared and spectroscopically fully characterized. The crystal structures of 2-4 are presented. Complexes 3 and 4 are potential molecular single-source precursors (SSP) for the ternary semiconductors CuInS2 and Cu2SnS3, respectively, which can be manipulated under ambient conditions. Indeed, a study or the thermal degradation of 3 and 4 revealed that 3 affords pure nanoscaled CuInS2 (mean diameter ca. 2 rim) when the decomposition is carried out in an oleyla.mine solution by using a hot-injection or arrested-precipitation technique at temperatures well below 250 degrees C. In contrast, 4 decomposes under the same reaction conditions in an ambiguous mariner and forms mixed binary chalcogenide phases. This can be explained by a subtle influence of the relative stability of possible Sn-II and Sn-IV intermediates in the case of SSP [{(Ph3P)(2)Cu(mu-S2C2O2)}(2)Sn(S2C2O2)] (4).

Journal or Publication Title: European Journal of Inorganic Chemistry
Volume: 2015
Number: 3
Publisher: WILEY-V C H VERLAG GMBH
Uncontrolled Keywords: Semiconductors, Copper, Indium, Tin, Heterometallic complexes, Single source precursor
Divisions: 11 Department of Materials and Earth Sciences > Material Science > Structure Research
07 Department of Chemistry
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences
Date Deposited: 21 Jan 2016 09:48
Official URL: http://dx.doi.org/10.1002/ejic.201402990
Identification Number: doi:10.1002/ejic.201402990
Funders: This work was carried out within joint research project with EMD Performance Materials (owned by Merck KGaA, 300 2nd Ave., Waltham, Massachusetts 02451, USA)., TEM measurements were carried out at the Ernst-Ruska-Center Julich by Dr. Engstler (TUDA) under contract number ERC-TUD1
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