Synthesis, Superstructure, Vacancy-Ordering of Intercalated Transition Metal Dichalcogenides

In this thesis, the synthesis and crystal structures are discussed of intercalated transition metal dichalcogenides (TMDCs) 6R-CuxTa1+yS2 and 2H-CuxTa1+ySe2, as well as the compound Cu3TaSe4. Synthesis of these compounds has been performed by the method of chemical vapor transport, using iodine as a transporting agent. X-ray diffraction may reveal superlattice reflections, which then indicates the existence of a superstructure. An eightfold superstructure has been found for 6R-CuxTa1+yS2 (x = 0.237, y = 0; x = 0.23, y = 0.06) and a fourfold superstructure has been found for 2H-Cu0:52TaSe2. 2H-Cu0:16Ta1:08Se2 and Cu3TaSe4 do not form any superstructure.

Level thesis:degree_level

thesis.doctoral

Grantor dc:publisher

Universität Bayreuth

Year

2014

Author dc:creator

• Ali, Sk Imran

Contributors dc:contributor

• van Smaalen, Sander

Repository record source_url

https://epub.uni-bayreuth.de/id/eprint/1762/

OAI identifier oai:identifier

oai:epub.uni-bayreuth.de:1762