Far-infrared study of the mechanochemically synthesized Cu2FeSnS4 (stannite) nanocrystals

被引：2
作者：
Trajic, J. [1 ]
Romcevic, M. [1 ]
Paunovic, N. [1 ]
Curcic, M. [1 ]
Balaz, P. [2 ]
Romcevic, N. [1 ]
机构：
[1] Univ Belgrade, Inst Phys, Belgrade 11080, Serbia
[2] Slovak Acad Sci, Inst Geotech, Kosice 04353, Slovakia
来源：
INFRARED PHYSICS & TECHNOLOGY | 2018年 / 90卷
关键词：
Nanostructures; Optical properties; Far-infrared spectroscopy; THIN-FILMS; OPTICAL-PROPERTIES; NANOPARTICLES; SULFURIZATION; KESTERITE;
D O I：
10.1016/j.infrared.2018.02.010
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
The analysis of the optical properties of mechanochemically synthesized stannite Cu2FeSnS4 nanocrystals has been performed using far-infrared spectroscopy. The Cu2FeSnS4 stannite nanocrystals were synthesized mechanochemically from elemental precursors Cu, Fe, Sn, and S. Milling time was 45, 60, 90 and 120 min. Reflectivity spectra were analyzed using the classical form of the dielectric function, which includes the phonon and the free carrier contribution. The influence of milling time on synthesis of stannite Cu2FeSnS4 is observed. Among the modes that are characteristic for the stannite Cu2FeSnS4, we registered the modes of binary phases of FeS and SnS. The total disappearance of the binary phases of FeS and SnS and forming pure Cu2FeSnS4 is observed when the milling time is 120 min. Effective permittivity of Cu2FeSnS4 and binary phases of FeS and SnS were modeled by Maxwell - Garnet approximation. (C) 2018 Elsevier B.V. All rights reserved.
引用
收藏
页码：66 / 69
页数：4
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