Chemical Vapour Transport of Bismuth and Antimony Chalcogenides M2Q3 (M = Sb, Bi, Q = Se, Te)

  • Thermodynamic modelling of the ternary systems M/Q/I (M = Sb, Bi, Q = Se, Te) indicated solid-gas equilibria suitable for chemical vapour transport of bismuth and antimony chalcogenides. The predictions of the modelling were confirmed by transport experiments on a transport balance. The optimum transport conditions using iodine as transport agent were determined for all systems to: ϑsource = 500 °C and ϑsink = 450 °C. For ΔT > 50 K the sequential transport of chalcogenide iodides MQI followed by M2Q3 occurs. Thermodynamic standard data of the gas species SbI(g) were concluded from equilibrium calculations: ΔH0f,298(SbI(g)) = 106 ± 3 kJ·mol–1; S0298(SbI(g)) = 255 ± 3 J·mol–1·K–1; Cp(SbI(g)) = 37 ± 1 J·mol–1·K–1

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Metadaten
Author: Michael Schöneich, Marcus P. Schmidt, Peer SchmidtORCiD
URL:http://onlinelibrary.wiley.com/doi/10.1002/zaac.201000149/full
DOI:https://doi.org/10.1002/zaac.201000149
ISSN:1521-3749
Title of the source (German):Zeitschrift für anorganische und allgemeine Chemie
Document Type:Scientific journal article peer-reviewed
Language:English
Year of publication:2010
Tag:Antimony; Bismuth; Chemical vapor transport; Selenium; Tellurium; Thermodynamic modelling
Volume/Year:636
Issue number:9-10
First Page:1810
Last Page:1816
Faculty/Chair:Fakultät 2 Umwelt und Naturwissenschaften / FG Anorganische Chemie
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