Crystal growth of ternary phases with homogeneity range: Modeling and experiments
- Synthesizing crystals of ternary solid solutions M2Q3 (M=Bi, Q=Se, Te) with definite composition requires advanced knowledge on the phase relations in the system. By chemical vapor transport [1] the request of homogeneous crystallization can be fulfilled. The experimental scope gets supported by modeling. A phase diagram of the pseudobinary system generated with FactSage [2] (Fig. 1) provides the thermodynamic parameters of the miscibility gap respectively the solid solution. Additionally, these parameters are used to optimize the processes while chemical vapor transport with iodine [3]. The optimum transport conditions of ϑsource = 500 °C and ϑsink = 450 °C has been applied as for the synthesis of the binary compounds [4]. Both by modeling and experiments the congruent transport can be demonstrated, Fig. 2.
Author: | Martin Wels, Peer SchmidtORCiD |
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URL: | http://onlinelibrary.wiley.com/doi/10.1002/zaac.201690018/full |
DOI: | https://doi.org/10.1002/zaac.201690018 |
ISSN: | 1521-3749 |
Title of the source (English): | Zeitschrift für Anorganische und Allgemeine Chemie |
Document Type: | Scientific journal article peer-reviewed |
Language: | English |
Year of publication: | 2016 |
Tag: | Chemical vapor transport Chalogenides; Crystal growth; Phase diagram; Solid solution |
Volume/Year: | 642 |
Issue number: | 18 |
First Page: | 1066 |
Faculty/Chair: | Fakultät 2 Umwelt und Naturwissenschaften / FG Anorganische Chemie |