Low-temperature molten salt synthesis and characterization of Cu2ZnSnS4 ultrafine powders

被引：12
作者：
Benchikhi, Mohamed [1 ,2 ]
El Ouatib, Rachida [1 ]
Er-Rakho, Lahcen [1 ]
Guillemet-Fritsch, Sophie [2 ]
Demai, Jean Jacques [2 ]
Durand, Bernard [2 ]
机构：
[1] Univ Hassan II Casablanca, Lab Phys Chim Mat Inorgan, Fac Sci Ain Chock, Casablanca, Morocco
[2] Univ Paul Sabatier, CNRS, UMR CNRS UPS INP 5085, Inst Carnot CIRIMAT, 118 Route Narbonne, F-31062 Toulouse 9, France
来源：
OPTIK | 2017年 / 138卷
关键词：
Cu2ZnSnS4; Semiconductor; Nanoparticles; Molten salt; THIN-FILMS;
D O I：
10.1016/j.ijleo.2017.02.076
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Nano-crystalline particles of Cu2ZnSnS4 have been successfully synthesized by a relatively low-temperature molten salt technique. The reaction of metal chlorides with KSCN at 400 degrees C for 24h led to the Cu2ZnSnS4 phase. The phase purity of Cu2ZnSnS4 nanocrystals has been confirmed by X-ray diffraction and Raman spectroscopy. The morphology and the crystallite size were evaluated by scanning and transmission electron microscopies. The Cu2ZnSnS4 nanocrystals possess an optical band gap of 1.5 eV, very close to the theoretical optimum for solar energy conversion. (C) 2017 Elsevier GmbH. All rights reserved.
引用
收藏
页码：568 / 572
页数：5
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