Open AccessSYNTHESIS AND X-RAY INVESTIGATION OF Cu2CdSn(SxSe1–x)4 SOLID SOLUTIONS
Author(s) -
А. У. Шелег,
В. Ф. Гременок,
and Sergey Sereda,
В. В. Гуртовой,
В. А. Чумак,
И. Н. Цырельчук
Publication year - 2018
Publication title -
vescì nacyânalʹnaj akadèmìì navuk belarusì. seryâ fìzìka-matèmatyčnyh navuk
Language(s) - English
Resource type - Journals
eISSN - 2524-2415
pISSN - 1561-2430
DOI - 10.29235/1561-2430-2018-54-2-229-233
Subject(s) - tetragonal crystal system , solid solution , crystallite , diffraction , rietveld refinement , powder diffraction , lattice constant , crystal structure , lattice (music) , crystallography , materials science , x ray crystallography , semiconductor , analytical chemistry (journal) , x ray , chemistry , optics , physics , optoelectronics , chromatography , acoustics , metallurgy
The quaternary semiconductors Cu2CdSnS4, Cu2CdSnSe4 and Cu2CdSn(SxSe1–x)4 solid solutions were synthesized by the one-temperature method from the elementary components. The X-ray diffraction method showed that the obtained polycrystalline samples are single-phased. The unit cell parameters of the synthesized compounds and Cu2CdSn(SxSe1–x)4 solid solutions were determined from diffraction spectra by the full-profile analysis using the Rietveld method with the Fullprof software package. It has been established that with an increase in sulfur concentration, the unit cell parameters decrease smoothly linearly in accordance with the Vegard rule, which indicates the formation of a continuous series of solid solutions in the Cu2CdSn(SxSe1–x)4 system within the range 0 ≤ x ≤ 1. The parameter of crystal lattice tetragonal distortions h of the investigated compounds is calculated. The h values are close to 1 for all the compositions studied, which indicates a small crystal lattice distortion of the obtained samples.