Alojz Kodre1,2, Jana Padežnik Gomilšek3, Iztok. Arčon 4,2, Anton Meden5 and Dragan Mihailović1,2,6
1Faculty
of Mathematics and Physics, University of Ljubljana, Jadranska 19, SI–1000
Ljubljana, Slovenia
2J.
Stefan Institute, Jamova 39, SI–1000 Ljubljana, Slovenia
3Faculty
of Mechanical Engineering, University of Maribor, Smetanova 17, SI-2000 Maribor,
Slovenia
4Nova
Gorica Polytechnic, Vipavska 13, SI-5000 Nova Gorica, Slovenia
5Faculty
of Chemistry and Chemical Technology, University of Ljubljana, Aškerčeva 5,
SI-1000 Ljubljana Slovenia
6 Mo6 d.o.o.
Teslova 30, SI-1000 Ljubljana, Slovenia
Absrtract
The structure of nanowires prepared by vapor synthesis from Mo, S
and I is investigated by methods of x-ray diffraction (XRD) and extended x-ray
absorption fine structure (EXAFS). Starting with a qualitative model of the
structure from XRD, the metrics is introduced with interatomic distances
determined from EXAFS. Two specific tools to increase the resolution of EXAFS
method are discussed: the reciprocity relation between data from adjacent target
atoms, and difference EXAFS from data on samples with small changes in
stoichiometry.
Key words: EXAFS, nanowires, molybdenum sulphide-iodide