Premium
R aman scattering in orthorhombic Cu I n S 2 nanocrystals
Author(s) -
Dzhagan V. M.,
Litvinchuk A. P.,
Valakh M. Ya.,
Kruszynska M.,
KolnyOlesiak J.,
Himcinschi C.,
Zahn D. R. T.
Publication year - 2014
Publication title -
physica status solidi (a)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 104
eISSN - 1862-6319
pISSN - 1862-6300
DOI - 10.1002/pssa.201330229
Subject(s) - tetragonal crystal system , orthorhombic crystal system , phonon , nanocrystalline material , raman scattering , nanocrystal , raman spectroscopy , materials science , scattering , condensed matter physics , lattice (music) , crystallography , chemistry , crystal structure , nanotechnology , physics , optics , acoustics
We report the results of non‐resonant and resonant Raman scattering in orthorhombic nanocrystalline CuInS 2 semiconductor, supported by density functional first principle lattice dynamics calculations. A larger number of dominant phonon modes in comparison with standard tetragonal CuInS 2 phases is shown to be associated with peculiarities of cation sublattice ordering and is the “fingerprint” of the corresponding structural polymorph. Good overall agreement is found between theoretical and experimental phonon mode frequencies.